Enemy Coast Ahead Dambuster Raid - Amazon S3...Scenario 10 is the complete game, the “Campaign Game,” incorporating Part 3 of the rules. It abstractly treats the planning It abstractly

table of contents

GMT Games, LLC P.O. Box 1308, Hanford, CA 93232-1308www.GMTGames.com

scenario book

Enemy Coast AheadThe Dambuster Raid

2Introduction 20Scenario 6: Flight of the Diversionary Force

23Scenario 7: Flight of the Main Force

26Scenario 8: Flight of the Reserve Force

29Scenario 9: The Dambuster Raid

35Scenario 9: Follow-Up Raid

36Scenario 10: The Campaign Game

42Scenario 10: Follow-Up Raid?

43Multi-Player Games

46Design Notes and Credits

2Attack Scenarios

3Scenario 1: Attack on Möhne Dam

6Scenario 2: Attack on Eder Dam

9Scenario 3: Attack on Sorpe Dam

12Scenario 4: Second Attack on Sorpe Dam

15Scenario 5: Attack on Ennepe Dam?

18Combining Attack Scenarios

19Flight Scenarios

Jeremy Whitedesign by617 Squadron’s maiden �ight

outcomes

setting up

aircrew training levels

Introduction

attack scenarios (scenarios 1-5)

approach and release chits

elite crewmen

special rule -- widening the breach

oach

mph

1 chit

approach

239mph

2 chits

approach

53ft

approach

65ft2 chits

Greenaircrew

1

Veteranaircrew

3

Seasonedaircrew

2

GREENaircrewtraining

level

SEASONEDaircrewtraining

level

VETERANaircrewtraining

level

Each scenario has a Debriefing Chart with “outcomes”. Generally, the higher up the chart your outcome, the more success-ful your mission. Historical outcomes are boxed. Locate your outcome by reading the Debriefing Chart left to right, column by column. Each column poses a question that will lead you to the next column until you find your specific outcome. For example, in Scenario 1 [p.5] you first must answer the question of the dam’s status, breached or not breached (first column). Then, you must tally the number of Lancasters that survived the scenario, and then tally the number of ordnance still carried by your Lancasters (2nd & 3rd columns). Thus, if you breached the dam, had 4 Lancasters returned to base or still flying to Eder Dam, and still had 3 Upkeep in play, your outcome would be “worth the price?”

Set up instructions are provided for each scenario, including a brief historical narrative.

Record the training levels of your aircrews on the Train-ing Level Track located on the Mission Planning Blotter on the extreme left of the mapsheet. Use Training Level markers, as shown on the set up page of each scenario.

There are ten scenarios. The first five are presented chronologically to study the tactical action at the dams, incorporating only the rules of Part 1 [rule sections 1.0-5.0]. Except for Scenario 1 they are brief affairs, good for learning the game but mainly intended to present each fragment of the raid as it was about to happen. Each includes a unique Debriefing Chart. For a more prolonged experience, attack scenarios may be combined, thus capturing the entirety of the raid while provid-ing more game [p.18]. If you are new to Enemy Coast Ahead, Scenario 5 is a good place to start [p.15].

Scenarios 6-8 add the rules of Part 2 to those already learned, and make full use of the Flight Map. They explore the fate of the three forces launched on the night of May 16, 1943. Scenario 9 treats the flights and attacks of all three forces as a whole, the complete historical scenario depicting 617 Squadron’s first mission, the famous Dambuster Raid in its entirety. A variant of Scenario 9 allows you to deviate from the squadron’s historical organization.

Scenario 10 is the complete game, the “Campaign Game,” incorporating Part 3 of the rules. It abstractly treats the planning that led to the raid, and allows control over the organization and training of 617 Squadron and the assignment of targets.

bomb-aiming& release

altitude& speed

navigation

green veteranseasoned

2 3 5

2 3 5

2 3 5

When you set up, organize these chits into two groups, altitude and speed, and place them in respective opaque containers. You will randomly draw these chits during the Approach & Release Sequence.

You are welcome to use the historical crewmen, or select them at random. If you prefer random selection, for every crewman you are allowed, draw two others and select one (do this one at a time and put the other two back in the cup).

If you breach a dam, you may release more Upkeep against it in order to ensure the breach. You are permitted one SUCCESSFUL release and any number of unsuccessful releases. (This special rule is the Attack scenario’s version of rule 7.9.6 “Widening the Breach”.)

altitude speed

The aircrew training levels for Scenarios 1-9 are as follows:

training level markers

2

© 2014 GMT Games, LLC

[5.3]

[2.6]

[2.3]

[4 2.2, 4.2.3, 4.2.13]

Gibson ordered AJ-P commanded by Flight Officer Martin in next, and this time Gibson made the run on AJ-P’s starboard. In order to draw flak away from Martin’s Lancaster, Gibson flew ahead and switched his Aldis lights back on (he was awarded the Victoria Cross for this). Upkeep was released at the right height and distance, but bounced to the left and exploded 50 yards from the dam.

At 0043 AJ-A went in accompanied by Gibson’s and Martin’s Lancasters as escort, offering the German gunners of Flak-Abteilung 840 three targets instead of one. Squadron Leader Young flew AJ-A on course and released the mine perfectly, exploding against the dam. By this time another flak gun had ceased to operate, its barrel jammed.

With little to no effective flak spraying tracers from the top of the dam, the next Lancaster went in as the others circled. AJ-J released Upkeep on target, and once again a plume of debris and water spewed up.

Gibson ordered Flight Lieutenant Shannon of AJ-L to make the next run, but after the debris cleared he belayed the order. The dam was breached! A gaping 150 foot hole had been punched directly in the middle of the wall, water gushing down into the valley. At 0053 the wireless operator on AJ-G transmitted codeword “Nigger” back to 5 Group headquarters, signaling that Target X had been breached. Using the very high frequency radio set, he ordered the three Lancasters still equipped with ordnance to follow him to the secondary target, the Eder Dam.

The scenario ends when the dam is breached, a Nightfighter scatters the Lancasters, or at the end of the turn when none of the Lancasters carry Upkeep. If still not over at the conclusion of Turn 8, keep playing (Turn 1 follows Turn 8; make a new Visibility Check). If you play Turn 8 a third time, the game ends due to concerns about fuel limitations (i.e., they RTB).

Ruhr Valley: 0020 hours, May 17, 1943

Lancaster

AJ-A veteran

veteran

seasoned

veteran

veteran

seasoned

veteran

veteran

-

Gibson, Trevor-Roper,or Deering

-

Shannon or Walker

Gregory

-

Martin

-

AJ-J

AJ-L

AJ-M(damaged)

AJ-N

AJ-P

AJ-Z

AJ-G(leader)

aircrew elite crewman(if more than one is listed, select one)

bombers & crews endnotes

Your biggest problem is flak, but you have plenty of bombers to work with. Expectations are high.

difficultyAll carry Upkeep (draw randomly; do not peek at back).

Scenario 1: Attack on the Mohne Dam

Wing Commander Gibson flew an initial recon-naissance over the dam, circled, and made his run in AJ-G. Flak from the sluice towers was “aggressive,” in the words of Gibson’s front gunner, and the sight of tracers flying past was

endured by the pilot, navigator and bomb-aimer who were working together to release AJ-G’s ordnance. The reflec-tions of tracers on the glassy surface of the calm reservoir made the flak seem to bounce off the water, which was particularly unnerving. The Lancaster approached the target at an altitude of 60 feet, the navigator watching the two glowing circles on the water below projected from twin Aldis lamps to make sure the proper altitude was being maintained. The engineer watched the speedometer while the bomb-aimer checked alignment, using the dam’s two towers as landmarks framing his bomb-sight. All three crewmen kept up a continual chatter for the benefit of Gibson as he steered the machine towards the target. Ten seconds later the bomb-aimer released Upkeep and the mine splashed onto the reservoir, bounced thrice, and landed against the lip of the dam before sinking. As the pilot pulled the Lancaster up into a turning climb and out of range of the tracers, the mine exploded in a rush of water and debris. Minutes ticked by as AJ-G circled beyond flak range, until Gibson determined that the dam had not actually been breached.

He ordered AJ-M to make the next run. Repeating the same process, it was hit by tracers on the approach but still managed to let go its ordnance. Released awkwardly, the mine bounced over the dam, exploding on the power station and its transformers below. While the concussion knocked one of the flak guns off its base, the Lancaster crashed some distance from the dam.

When it ends, Lancasters that still carry Upkeep are consid-ered to fly on to the Secondary Target (Eder Dam). Lancasters without ordnance return to base (RTB). You must resolve the fate of all RTB aircraft [player aid E1 (use the Ruhr Flight Zone modifier)], and Morning Recon [player aid E3] before interpreting the scenario’s outcome (see the Debriefing Chart). The leader continues on to the Secondary Target even if not carrying ordnance.

3


AJ-G is theleader

AJ-M starts damaged

leader designationis only important

if you play a scenariocombination [p. 18]

startsCIRCLING

NEARstarts CIRCLING FAR

All aircrews are veteran,except AJ-J and AJ-N

Reduce clutter in theCIRCLING FAR boxby using a Wave marker

put all altitude approach chitsin a cup, and all speed chits

in another cup

attach a randomly drawnordnance marker to each

aircraft

All aircraft except AJ-G start in the Circling Far Box

Veteran aircrews are at training level 5, Seasoned aircrews are

at 3

altitude chits speed chits

ALERT level 1

water level = fullrecon level = 2activity level = 1DAM’S STATUS:

flak level = 3visibility = clear

scenario starts on Turn 4

(a VERY LIGHT FLARE marker starts on the Turn 3 space)

Engl

ish

Coas

tN

orth

Sea

Ruhr

Wes

er

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION

BOMB-A M NG & RELEASE

AL ITUDE & PEED

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

Turn 8

53

urn 1

00

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast

Mission Planning Blotter Target Maps

L STER DAM

MOHNE DAM

0 21

0 3 41

ENNEPE DAM

0 2 3 41

l v l ( l v l t ) b ch n h �g t r a a

pp o ch& e e se

Ci cl ngRun S atus heck

A1

MÖHNE DAM

EDER DAM

SORPE DAM

Tu n 3

2 00

u n 2

2 00

u n 1

2 00

T rn 6

2 0

Tu n 5

0 00

Tu n 4

0 00

Tu n 9

500

T rn 7

3 0

F ight Turn

urn 0

600R B

T rn 8

4 0

Flight TurnSeque ce of Pha es

Engl

and Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Ta getAcqu s t on

Ta get Map

n r a e A e t ev ?C ean Up

Re olveHaza ds

Coo dina ion

2 Jo n W ve1 Co r i a e Wa e

3 C ea e W ve

Attack Turn Sequence of Ph ses

1 2 3

0

ALRM

Flight Map

SORPEDAM

EDERDAM

ISTERDAM

DI MELDAM

ENNEPEDAM

B VERDAM

HENNEDAM

MOHNEDAM

Veteranaircrew

3

Seasonedaircrew

2

Seasonedaircrew

2

U

Upk1 1

U1

Upkeep

1

Upkeep

1

ALERT

SEASONEDtraining

levelmarker

SEASONEDtraining

levelmarker

SEASONEDtraining

levelmarker

VETERANtraining

levelmarker

VETERANtraining

levelmarker

VETERANtraining

levelmarker

RECON waterlevel

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 ch

approach

65ft2 chits

VeryLight�are

phaseattack

TURNattack

moon

Turn 8

:53

Turn 1

:00

Turn 7

:45

Turn 2

:07

vis bilitycheck

visibilitycheck

v sibilitycheck

Turn 6

:37

Turn 3

:16

Turn 5

:30

Turn 4

:23

Attack TurnApproach Vector Check

Approach& Release

CirclingRun Status Check

0

1

2

3

4

EderSorpe

or Beverotherdam

M

M

M

M

A

S

S SS SS SA SSSSSS

A AA A

SSS

AA AA

S S SS

AS

SS

AAA A AS

S S

AASS

AA A

SSS

A A AAS

S SS

AA AAA

S

AA

S S

A A AS

S S

A A AAAA

S

AA

S

A AS

S

A AA

A AA AAA A

S

AS AS

A2

A3

A1

die roll

FOG

FOG

FOG

FOG

FOG

1 3

+ + +

++

+ ++ + ++

+ + + +

+ + +

+ + + + + +

+ + + + + +

4 5 6die roll

1 2 3 5 6die roll

1 2 3 4 5 6

key

ReconLevel

Michelskopfmodi�er1 Speed

Ch t

1 Alt tude Ch t

1 Very Light Flare null �es 1 A

Attack Phases

P ApproachVector gunnery

-1

ignoredamage

P

use once

KIA

damaged

-1

re-rollC

use once

FirstWave

FirstWave

FirstWave

leader

AJ

1

Attack on the Mohne Damaircraft & attachments...

mapsheet...

4


Dam’sstatus

Ordnanceremaining Outcome Attack on the Möhne Dam

breached

all

4 or more

4 or more

5 or more

3 or less

3 or less

1 or more

none

4 or more

3 or less

2 or more

1 or less

4 or less

7

4-6

3 orfewer

3-5

6+

notbreached

a very near thing

bloody experiment

success

costly success

worth the price?

costly job

marvelous failure

futile experiment

smashing victory

costly experiment

job well done

squandered opportunity

LancastersRTB &

still �ying

1 or more

none2 or

fewer outrageous folly

catastrophe

5


Barnes Wallis smiles as he is congratulated. It worked! But there won’t be an attack on the Edersee, and a follow-up attack on a subsequent night will surely lack the element of tonight’s surprise. The raid proved an engineer’s hypoth-esis, but the cost in materiel and personnel rendered the operation a failure.

Barnes Wallis can already sense the attitude in the Ministry. He will soon be a pariah. They will say Upkeep was a failure, but if only he could persuade Bomber Command to attack in daylight.

Barnes Wallis is puzzled, anxious to interview the surviving crews. What went wrong?

The wireless operator relays the news to A.O.C. Cochrane and his staff at Grantham. The room is astir as hands are shaken all around. It worked!

Barnes Wallis is jubilant. Upkeep works! But A.O.C. Cochrane remains calm. There will be a casualty list.

Barnes Wallis is vindicated, his mine works, but he is taken aback by the casual-ties. He expected them, of course, but until that morning’s pre-flight briefing the project had been all vectors and numbers. Now, in his mind’s eye he sees faces. And with casualties, can the Eder be breached as well?

“Well done!” is the exclamation at Grantham, but Barnes Wallis soon has a sober look on his formerly jubilant face. He was sure a single mine was enough to breach the dam. Why did it take so many?

As the Lancasters touch back down at Scampton, Barnes Wallis is anxious to learn everything he can from the surviving aircrew. He is already preparing a retort to the inevitable accusations from Air Chief Marshall Harris and the Ministry of Aircraft Production that Upkeep doesn’t work.

Barnes Wallis smiles when he hears the news. The mine works! Hands are shaken at Grantham but soon calm is restored. On to the Edersee.

Yes, the mine works, but at what cost? 617 Squadron was equipped with 5 Group’s best pilots and crews. Was this the best application of personnel and assets?

The raid confirms the vulnerability of the Ruhr dams, but at Grantham, after a round of vigorous handshaking, A.O.C. Cochrane is visibly concerned. How many mines remain? Can the Eder be breached as well?

A.O.C. Cochrane shakes his head at the news. The element of surprise has been squandered.

Air Chief Marshall Harris has just wasted a crack squadron in the pursuit of an engineer’s folly.

The mine failed and a squadron was slaughtered.

Scenario 2: Attack on the Eder Dam

AJ-L made another run, the pilot still fighting to main-tain proper airspeed, pulled up again, and then made yet another approach. Shannon repeated this six times before releasing Upkeep. It bounced only twice and then struck the top of the dam, wrecking the parapet, stairs, and boat dock on the south end of the structure. Mean-while, Shannon pulled hard into a steep banking climb to avoid smashing into the face of the Michelskopf.

After waiting for the debris to clear, verifying the failed release, Gibson ordered AJ-Z to try the next attack. After making several runs, struggling with the same problems Shannon faced, Squadron Leader Maudslay’s bomb-aimer let go the mine. It was an inaccurate release, however, damaging the Lancaster. There was now only one mine remaining.

Circling all the while, Pilot Officer Knight and his crew in AJ-N had observed the two failed attacks, and when called in by Gibson on the VHF radio to make his run, he had decided to adjust the approach angle. Instead of flying along the dam’s perpendicular axis, the Lancaster would approach a few degrees to port. Although unable to maintain perfect airspeed, Upkeep was released on target. Knight pulled hard to make the climb and the detonation spewed up water, foam and rubble behind him. This time, after the spray and debris cleared, it was obvious the dam was breached.

At 0152, Gibson’s wireless tapped out the codeword “Dinghy” to 5 Group’s HQ at Grantham.

The scenario ends when the dam is breached, a Nightfighter attacks, or at the end of a turn when none of the Lancasters carry Upkeep. If still not over at the conclusion of Turn 8, keep playing (Turn 1 follows Turn 8, and make a new Visibility Check). If you complete Turn 8 again, all Lancasters automati-cally RTB (limitations of fuel ends the attack).

When it ends, Lancasters that still carry Upkeep are consid-ered to fly on to the tertiary target (Sorpe Dam). Lancasters without ordnance return to base (RTB). You must resolve the fate of all RTB aircraft [player aid E1 (use the Weser Flight Zone modifier)], and Morning Recon [E3], before interpret-ing the scenario’s outcome (see the Debriefing Chart). The leader continues on to the next target even if not carrying ordnance.

Edersee Reservoir: 0130 hours, May 17, 1943

After breaching the Möhne Dam, only three Lancasters still carried mines. Wing Commander Gibson ordered those without ordnance to return to base while he led the still lethal machines deeper into the Ruhr, to the Edersee Reservoir and its gravity dam.

The setting was calm when the four Lancasters descended out of the moonlight. Unlike at the primary target, here there were no flak installations. There were no tracers, and no searchlights or barrage balloons either. Eder Dam was undefended.

The approach was unobstructed, except for Waldeck Castle situated on a spur jutting into the bending reservoir, but that was not as troubling as the steep cliff located just beyond the wall of the dam, the Michelskopf (Michael’s Head). The entire reservoir, in fact, was nestled inside a valley with undulating banks all around. Also, mist was observed hovering over the reservoir in light patches.

As he circled in AJ-G, his crew keeping an eye skyward for nightfighters, Gibson ordered AJ-L to make a run at the dam. Flight Lt. Shannon directed his crew to get to work, and the pair of Aldis lights illuminated two spots on the landscape below. The bomber followed the contours of the banks as Shannon steered it onto the reservoir, finding altitude easier to maintain than the proper speed. The slight dive needed to get over the water and onto the designed trajectory towards the wall of the dam increased airspeed. After negotiating the castle and readjusting for altitude, his engineer warned that he was going too fast. Shannon pulled up and circled.

All but AJ-G carry Upkeep (draw randomly; don’t peek at back).

veteran

veteran

seasoned

veteran

-

Shannon or Walker

-

-

AJ-L

AJ-N

AJ-Z

AJ-G(leader)

You don’t have flak to worry about, but with only three mines you want to make each count. And you’ll have to contend with the Michelskopf.

difficulty

Lancaster aircrewelite crewman(if more than one is listed, select one)

bombers & crews endnotes

6


AJ-G is theleader

leader designationis only importantif you play a scenariocombination [p. 18]

starts CIRCLING NEAR

All aircrews are veteran,except AJ-N

Reduce clutter in theCIRCLING NEAR boxby using a Wave marker


in another cup

attach a randomly drawnordnance marker to each

aircraft, except AJ-G

All aircraft start Circling Near

Veteran aircrews are at training level 5, Seasoned aircrews are

at 3


ALERT level 2 water level = fullrecon level = 2activity level = 0DAM’S STATUS:

visibility = fog


Engl

ish

Coas

tN

orth

Sea

Ruhr

Wes

er

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION


AL ITUDE & PEED

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

Turn 8

53

urn 1

00

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast


MOHNE DAM

0

0 2 3 41

EDER DAM

l

0 2 3 41

SORPE DAM

0 2 3 41

BEVER DAM

0 2 3 41

ENNEPE DAM

0 2 3 41


pp o ch& e e se


A1

MÖHNE D M

EDER DAM

SORPE DAM

Tu n 3

2 00

u n 2

2 00

u n 1

2 00

T rn 6

2 0

Tu n 5

0 00

Tu n 4

0 00

Tu n 9

500

T rn 7

3 0

F ight Turn

urn 0

600R B

T rn 8

4 0


Engl

and Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Ta getAcqu s t on

Ta get Map


Re olveHaza ds

Coo dina ion


3 C ea e W ve


1 2 3

0

ALRM

Flight Map

SORPEDAM

EDERDAM

ISTERDAM

DI MELDAM

ENNEPEDAM

B VERDAM

HENNEDAM

MOHNEDAM

Veteranaircrew

3

Upkeep

ALERT

RECON waterlevel

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 chi

approach

65ft2 chits

phaseattack

TURNattack

moon

Turn 8

:53

Turn 1

:00

Turn 7

:45

Turn 2

:07

vis bilitycheck

visibilitycheck

v sibilitycheck

Turn 6

:37

Turn 3

:16

Turn 5

:30

Turn 4

:23


Approach& Release


0

1

2

3

4

EderSorpe

or Beverotherdam

M

M

M

M

A

S

S SS SS SA SSSSSS

A AA A

SSS

AA AA

S S SS

AS

SS

AAA A AS

S S

AASS

AA A

SSS

A A AAS

S SS

AA AAA

S

AA

S S

A A AS

S S

A A AAAA

S

AA

S

A AS

S

A AA

A AA AAA A

S

AS AS

A2

A3

A1

die roll

FOG

FOG

FOG

FOG

FOG

1 3

+ + +

++

+ ++ + ++

+ + + +

+ + +

+ + + + + +

+ + + + + +

4 5 6die roll

1 2 3 5 6die roll

1 2 3 4 5 6

key

ReconLevel


Ch t

1 Alt tude Ch t


Attack Phases

FirstWave

leader

fog

Upk1

Upkeep

1Seasonedaircrew

2

FirstWave

FirstWave

Attack on the Eder Damaircraft & attachments...

mapsheet...

EDER DAM

EDER DAM

SEASONEDtraining

levelmarker

SEASONEDtraining

levelmarker

SEASONEDtraining

levelmarker

VETERANtraining

levelmarker

VETERANtraining

levelmarker

VETERANtraining

levelmarker

7


ApproachVector

Outcome Attack on the Eder Dam

brink of victory

gone awry

perfect bombing

heroism

great experiment

standing ovation

a dam too far

disaster in the west

disappointment

titanic blow

brilliantly conducted operation

lost opportunity

8


Minister for Armaments and Munitions, Albert Speer, spends the next few weeks diverting men and materiel elsewhere to repair the two breached dams. Industry soon resumes in the Ruhr thanks to his decisive action, motivated by the urgency of the task and by the Fuhrer’s outrage. Hitler called it a “disaster in the west.” But the cost was great. Survivors of downed Lancasters are nursed to health in German hospitals. They are interrogated before being transferred to prisoner of war camps. Those that survive won’t return to Britain for at least two years.

Air Chief Marshal Harris had been skeptical of the bouncing mine from the start, but if it worked at Möhne, what went wrong here? Was Möhne a fluke?

What went wrong? Barnes Wallis had calculated that a single mine could breach the Eder, if released properly. Now he is eager for the debriefing.

The Daily Mail will declare that “the devastation done to Germany’s war machine has probably only just begun.” But...will they write that the Sorpe was also smashed?

At Grantham, A.O.C. Cochrane is informed that the Eder is breached and one lone Lancaster will make its way to the Sorpe. He is elated, but then pauses to think of the squadron’s casualty list. (In two weeks the surviving crew will have an audience with the King and Queen at Scampton, personally decorated by the royal hand.)

The acting wing commander of 617 Squadron will write to Barnes Wallis: “All my pilots and I are honoured that we had the opportunity to take part in the last great experiment which has proved all your theories.”

Near the end of June, the Queen will invest the surviving crew with awards. Determine the pilot’s award: roll a die: 1-5 = DSO, 6 = VC.

Two days later in Washington, Prime Minister Winston Churchill will mention the raid in his speech before the United States Senate. He will receive a standing ovation.

Barnes Wallis is mortified at the news. At first elated at the success of the Möhne breach, all he can think of now is Air Chief Marshal Harris’s initial reaction to the proposal of the bouncing bomb back in February: “My boys’ lives are too precious to be thrown away by you.”

Even before the Lancasters touch back down at Scampton, Barnes Wallis is already deflecting accusations. Was this failure the result of poor engineering on his part, or inadequate execution on the part of pilots and crews?

Tomorrow The Illustrated London News will read: “A titanic blow at Germany, the RAF smashes Europe’s mightiest dams.” But the night is not over: On to the Sorpe!

Air Vice-Marshal Cochrane to Wing Commander Gibson: “All ranks in 5 Group join me in congratulating you and all in 617 Squadron on a brilliantly conducted opera-tion.” The crew that breached the dam will receive medals at Buckingham Palace.

While the debriefing is underway at Scampton, in Germany barrage balloons are lofted over the Eder. Searchlights and flak guns will soon be installed as well.

Dam’sstatus

LancastersRTB &

still �yingOrdnanceremaining

breached

4+

1 or more

1 or more

1 or more

none

none

none

none

1 or more

none

1 or more

none

none2-3

1

0

0

1-3

4+

notbreached

Scenario 3: First Attack on the Sorpe Dam

AJ-T made ten runs at the target. Sorpe was not a gravity dam like Eder and Möhne, it was a steel reinforced concrete core “wrapped” in deep earthen embankments. Barnes Wallis had surmised that a different technique would be needed to breach such a dam. Instead of hurtling Upkeep perpendicular to the dam’s wall, the Lancaster was to fly roughly parallel to it, releasing the mine on top of it so that it would detonate as it rolled down.

McCarthy’s bomb-aimer released Upkeep at 0046 hours. AJ-T’s altitude was low and his airspeed 10mph too slow, but nonetheless the mine exploded against the dam. It seemed to work. The debris and water-spray was impres-sive, but after circling for fifteen minutes to verify the results, it was evident that the earthen-casing insulated the concrete core from the detonation.

AJ-T circled a few more times but did not spot enemy aircraft, and so, with only so much fuel in his bird’s tanks, McCarthy turned for base.

The staff and officers at 5 Group were unaware of the Lancaster’s failed attack, or even its whereabouts, until 0300. McCarthy had forgotten to transmit “Goner78C” after releasing Upkeep, finally sending the codeword more than two hours late. It signaled the disappointing result.

The scenario ends if the Lancaster is destroyed, a Night-fighter attacks, or, at the end of a turn in which it no longer carries Upkeep (in which case it is presumed to head back to Scampton).

If still not over at the conclusion of Turn 8, keep playing (Turn 1 follows Turn 8, and make a new Visibility Check). If you conclude Turn 8 again, AJ-T automatically returns to base.

If the bomber returns to base, you must resolve the Lancaster’s fate on the Return to Base table [E1] before interpreting the scenario’s outcome on the Debriefing Chart (use the Ruhr Flight Zone modifier). Also, if Upkeep was successfully released and damaged the dam, perform Morning Recon [E3] before determining the outcome.

Ruhr Valley: 0015 hours, May 17, 1943

Flight Lieutenant McCarthy, an American who volun-teered to fight with the RCAF, arrived at the target at 0015 hours at the helm of AJ-T. He and his crew had taken off late, after switching airplanes at the eleventh hour due to engine trouble, and never managed to catch up to the rest of the wave. It was a difficult flight. AJ-T contended with alerted anti-aircraft batteries, surviving damage sustained by flak fired from a train.

McCarthy surveyed the calm scene upon arrival, noting that steep hills on either side of the reservoir would obviously influence the Lancaster’s approach, allowing him very little time after diving to level off before releasing ordnance. There was no flak at the dam, and no other defenses as well, so with only one mine to work with McCarthy endeavored to make the perfect shot. The dam seemed unscathed, so it appeared that the rest of the wave had not yet arrived, or had failed to damage the dam.

AJ-T’s mission was not only to attack the dam, but to create a ruckus to divert Luftwaffe assets from the Möhne, 617 Squadron’s primary target. McCarthy was therefore liberal with his flares, dropping them in order to better align his approach and illuminate the target. The flares were also an attempt to make the RAF’s presence over the Sorpe more impressive than it really was, hoping to divert nightfighters from attending the festivities over other dams.

AJ-T carries Upkeep (draw randomly; do not peek at back).

seasoned JohnsonAJ-T(damaged)

endnotes

A single mine had little chance of breaching this type of dam, but the mission here also involves creating a diver-sion. This is reflected in the scenario’s outcomes (see the Debriefing Chart).

difficulty

Lancaster aircrew elite crewman

bomber & crew

9



AJ-T’s aircrewis seasoned


in another cup

attach a randomly drawnordnance marker to AJ-T

AJ-T starts Circling Near(damaged)

The SEASONED aircrew’s training levels are 3



visibility = fog


Engl

ish

Coas

tN

orth

Sea

Ruhr

Wes

er

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION


AL ITUDE & PEED

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

Turn 8

53

urn 1

00

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast


MOHNE DAM

0

0 3 41

EDER DAM

l

0 2 3 41

SORPE DAM

0 2 3 41

BEVER DAM

0 2 3 41

ENNEPE DAM

0 2 3 41


pp o ch& e e se


A1

MÖHNE M

EDER DAM

SORPE DAM

Tu n 3

2 00

u n 2

2 00

u n 1

2 00

T rn 6

2 0

Tu n 5

0 00

Tu n 4

0 00

Tu n 9

500

T rn 7

3 0

F ight Turn

urn 0

600R B

T rn 8

4 0


Engl

and Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Ta getAcqu s t on

Ta get Map


Re olveHaza ds

Coo dina ion


3 C ea e W ve


1 2 3

0

ALRM

Flight Map

SORPEDAM

EDERDAM

ISTERDAM

DI MELDAM

ENNEPEDAM

B VERDAM

HENNEDAM

MOHNEDAM

ALERT

SEASONEDtraining

levelmarker

SEASONEDtraining

levelmarker

SEASONEDtraininglevel

marker

RECON waterlevel

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 chi

approach

65ft2 chits

phaseattack

TURNattack

moon

Turn 8

:53

Turn 1

:00

Turn 7

:45

Turn 2

:07

vis bilitycheck

visibilitycheck

v sibilitycheck

Turn 6

:37

Turn 3

:16

Turn 5

:30

Turn 4

:23


Approach& Release


0

1

2

3

4

EderSorpe

or Beverotherdam

M

M

M

M

A

S

S SS SS SA SSSSSS

A AA A

SSS

AA AA

S S SS

AS

SS

AAA A AS

S S

AASS

AA A

SSS

A A AAS

S SS

AA AAA

S

AA

S S

A A AS

S S

A A AAAA

S

AA

S

A AS

S

A AA

A AA AAA A

S

AS AS

A2

A3

A1

die roll

FOG

FOG

FOG

FOG

FOG

1 3

+ + +

++

+ ++ + ++

+ + + +

+ + +

+ + + + + +

+ + + + + +

4 5 6die roll

1 2 3 5 6die roll

1 2 3 4 5 6

key

ReconLevel


Ch t

1 Alt tude Ch t


Attack Phases

+1

fog

Upkeep1

1

Seasonedaircrew

2

First Attack on the Sorpe Damaircraft & attachments...

mapsheet...

SORPE DAM

10


Night-�ghter

Lancaster Dam Outcome

nearbyor

attacked

RTB

damaged

notdamaged

damaged

notdamaged

missing ordestroyed

missing ordestroyed

nevernearbyand noattack

Before the flight, the pilot had made the usual lark about eating his buddy’s eggs should he not return. The evening after the raid, Wing Commander Gibson wrote a solemn letter to the wives and mothers of the missing crew. He very nearly mentioned eggs but caught himself. He made sure the letter to the pilot’s wife included the words “heroism” and “gallantry.”

a good egg

At Grantham, A.O.C. Cochrane is perplexed. The wireless transmission was garbled, and he is left wondering if the Lancaster assaulted the dam at all. From intercepted German transmissions Bomber Command would learn that the Lancaster did indeed reach the dam. However, the fate of the machine and its crew won’t come to light until the early 1950s.

Roll a die to determine the number of crew that survived when the Lancaster was downed. That many bailed out, and they are all taken prisoners, some of them badly injured, and they sit out the remainder of the war in a German POW camp. The camp is liberated by the Soviets in 1945. Roll a die: if EVEN, they are released in that year, if ODD they are released in 1946.

bitter success

Wing Commander Gibson recommends a DSO for the bomb-aimer.�ne shot

The pilot is recommended for a DSO (if he already has one, a bar is added). The dam might not have been harmed, but the diversionary aim of the attack was fulfilled.

heroism

RTB

damaged

damaged

notdamaged

Back at Scampton, Wing Commander Gibson shakes the pilot’s hand. During the debriefing, the pilot explains that the mine did not detonate as expected. It rolled down and away, exploding at too great a distance from the lip of the dam to do harm. Next month the pilot is awarded a DSO. It is pinned on him by the Queen at Buckingham Palace.

mission completed

There are two possible outcomes. Roll a die. If the result is EVEN:

If the result is ODD:

Having done no apparent damage to the dam and unable to attract the Luftwaffe’s attention, the crew returns to Scampton feeling lucky to have made it back alive.

survived

notdamaged

Four of the five Lancasters launched towards the Sorpe failed to reach the target. The dam was not harmed, and German assets were not diverted during the raid to protect it. Only two of the five Lancasters returned to Scampton, and Bomber Command would not even be able to confirm that the dam was attacked.

failure

The Lancaster and its crew are listed as missing, and the crew’s fate remains unknown to Bomber Command until 1946. Morning recon reveals that the dam was damaged, but it will take decades for the full story of the attack to emerge from German sources.

bitter frustration

Morning recon will confirm that the dam was damaged, but since the Lancaster was downed out of contact with friendly aircraft, the fate of its crew is unknown. Roll a die: the number indicates the number of crew who survived. They are taken prisoner. Roll another die: if EVEN, one escapes; if ODD, they all die as POWs.



First Attack on the Sorpe Dam

11


Scenario 4: Second Attack on the Sorpe Dam

The scenario ends if the Lancaster is destroyed, a Night-fighter attacks, or, at the end of a turn in which AJ-F no longer carries Upkeep (in which case it is presumed to head back to Scampton).

If still not over at the conclusion of Turn 8, keep playing (Turn 1 follows Turn 8, and make a new Visibility Check), but when you resolve the RTB check at the end of the game impose a -1 modifier (thus simulating the effect of low fuel). If you play Turn 8 again, the game is over (AJ-F returns to base at the end of the turn).

If the Lancaster returns to base, you must resolve its fate on the Return to Base table [E1] before you interpret the scenario’s outcome on the Debriefing Chart (use the Ruhr Flight Zone modifier). Also, perform Morning Recon (also roll for the Upkeep marker that started the scenario on the damage side of the record track) [E3].

Sorpesee Reservoir, 0314 hours, May 17, 1943

Flight Sergeant Brown at the command of AJ-F received orders to attack the Sorpe Dam via wireless telegraphy while in the air. Had AJ-T transmitted Goner78C promptly two hours earlier, Grantham may have ordered a different primary target for AJ-F. Nevertheless, the flight into the Ruhr was trying, given that the attacks on the first two dams had alerted German defenses, and it did not help that fog had formed in low-lying areas along the route leaving only the tops of hills and woods exposed. Maintain-ing low altitude was a challenge.

Upon arriving at the reservoir, Brown descended in between the hills on either side and made an initial pass. He found it difficult to judge the approach in the darkness, and admitted that he botched the first pass. He circled round, made another pass to judge the trajectory, then instructed flares be dropped at several points along and around the path of flight as navigational aids.

AJ-F carries Upkeep (draw randomly; do not peek at back).

seasoned OanciaAJ-F

Since the scenario begins with damage already on the dam, there is a chance here to score a breach.

But with fog and an alert Luftwaffe, the odds are not good.

difficulty

Ultimately, AJ-F made six runs at the dam. On the last one Upkeep was released and it rolled into the water, exploding as desired. In fact, after climbing and circling, Brown observed the geyser of debris and spray leap out of the reservoir, and then...crumbling of the berm!

But no breach.

Before starting, randomly draw an Upkeep marker and place it on the damage end of the dam’s Status Record Track. This represents the damage inflicted by AJ-T (Scenario 3). During the first Status Phase when the Lancaster is in the Circling Near Box, resolve the damage normally [4.4.4, player aid A14].

previous damage

endnotes

Visibility starts as “fog” in this scenario. All visibility rolls have a -2 modifier due to the hour (it is Turn 7 on the Flight Turn Track).

visibility

Lancaster aircrew elite crewman

bomber & crew

12



AJ-F’s aircrewis seasoned


in another cup

attach a randomly drawnordnance marker to AJ-F

AJ-F starts Circling Near

The SEASONED aircrew’s training levels are 3



visibility = fog


(a VERY LIGHT FLARE marker starts on the Turn 2 space)

Engl

ish

Coas

tN

orth

Sea

Ruhr

Wes

er

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION


AL ITUDE & PEED

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

Turn 8

53

urn 1

00

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast


MOHNE DAM

0

0 3 41

EDER DAM

l

0 2 3 41

SORPE DAM

0 2 3 41

BEVER DAM

0 2 3 41

ENNEPE DAM

0 2 3 41


pp o ch& e e se


A1

MÖHNE M

EDER DAM

SO

Tu n 3

2 00

u n 2

2 00

u n 1

2 00

T rn 6

2 0

Tu n 5

0 00

Tu n 4

0 00

Tu n 9

500

T rn 7

3 0

F ight Turn

urn 0

600R B

T rn 8

4 0


Engl

and Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Ta getAcqu s t on

Ta get Map


Re olveHaza ds

Coo dina ion


3 C ea e W ve


1 2 3

0

ALRM

Flight Map

SORPEDAM

EDERDAM

ISTERDAM

DI MELDAM

ENNEPEDAM

B VERDAM

HENNEDAM

MOHNEDAM

ALERT

SEASONEDtraining

levelmarker

SEASONEDtraining

levelmarker

SEASONEDtraininglevel

marker

RECON waterlevel

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 chi

approach

65ft2 chits

phaseattack

TURNattack

moon

Turn 8

:53

Turn 1

:00

Turn 7

:45

Turn 2

:07

vis bilitycheck

visibilitychec

v sibilitycheck

Turn 6

:37

Turn 3

:16

Turn 5

:30

Turn 4

:23


Approach& Release


0

1

2

3

4

EderSorpe

or Beverotherdam

M

M

M

M

A

S

S SS SS SA SSSSSS

A AA A

SSS

AA AA

S S SS

AS

SS

AAA A AS

S S

AASS

AA A

SSS

A A AAS

S SS

AA AAA

S

AA

S S

A A AS

S S

A A AAAA

S

AA

S

A AS

S

A AA

A AA AAA A

S

AS AS

A2

A3

A1

die roll

FOG

FOG

FOG

FOG

FOG

1 3

+ + +

++

+ ++ + ++

+ + + +

+ + +

+ + + + + +

+ + + + + +

4 5 6die roll

1 2 3 5 6die roll

1 2 3 4 5 6

key

ReconLevel


Ch t

1 Alt tude Ch t


Attack Phases

+1

VeryLight�are

i lprevious damage

fog

Upkeep1

1

Upkeep1

1

Seasonedaircrew

2

Second Attack on the Sorpe Damaircraft & attachments...

mapsheet...

SORPE DAM

13


Dam’sStatus

Release Lancaster

breached

RTB

missing ordestroyed

notbreached

releasesuccess

releasesuccess

RTB

RTB

missing ordestroyed

missing ordestroyed

RTB

missing ordestroyed

releasefailed

norelease

At Grantham, A.O.C. Cochrane is jubilant. Three dams! Barnes Wallis is pleased when he hears the news. But the last wireless transmission was garbled, and the fate of the Lancaster is cast into doubt. Morning recon will confirm the breach, but the whereabouts of the crew will remain unknown for some time.

The crew all die in the crash, their whereabouts located decades later by historians, many of them unaffiliated amateurs, piecing together German and Dutch anecdotes and records.

Roll a die to determine the number of crew that survived when the Lancaster was downed. They recuperate in a POW camp until liberated. Roll another die: if EVEN, they return to Britain in 1945 as heroes. If ODD, they are liberated by the Soviet army, and when it is learned that they were involved in the Great Dams Raid, they are moved east to be “interviewed” as the Soviets strive to learn the secrets of the bouncing bomb.

posthumous heroes?

The pilot is awarded a DSO, and the bomb-aimer receives a DFM. But roll a die: if a 6, the pilot is awarded a VC instead. Three dams breached!

After the war, Albert Speer, Germany’s Minister for Armaments and Munitions, would write from his jail cell that the turning point was not Stalingrad or El Alam-ein, but the smashing of the Ruhr dams.

strategic victory!

When the morning recon photographs reach Barnes Wallis, the engineer scrutinizes them with great care. Magnifying glass in hand, he quietly mutters to himself. “Damn, so close.”

mission completed



Only one of the crew manages to bail out, landing near the dam. He spends May 17 eluding locals, but is nabbed the next day and sits out the rest of the war in a Luftwaffe prison camp. Roll a die to see if he survives: on a 1-4 he returns to Britain in 1945, where he is soon decorated. A 5 means he died before liberation, and a 6 means he died trying to escape.

package delivered

Relieved to make it back to Scampton, the crew spend much of the next day in a long debriefing session. The approach and release lasted only ten seconds, but the crew spends two hours recalling every detail.

job completed

Will the crew survive? Roll a die: that many bail out. Roll another die, and of those that bailed out, that number are captured, the others that bailed out, if any, elude capture and eventually take refuge amongst the Dutch underground. They are deliv-ered to the British army in early 1945.

falling short

In the crash the crew die and the mine rolls into the woods where it is stumbled upon the next day by locals. It is soon in the hands of German engineers who analyze the device. Their findings are used to improve defenses at dams, as well as the defenses of the battleship Tirpitz.

debacle

The pilot manages to return his Lancaster, its crew, and its lethal cargo back to Scampton. The mission failed, but the assets are secure.

aborted

Back at Scampton, the crew settles down to a hearty meal involving fresh eggs. The pilot’s story of how a third dam was very nearly busted grows longer every year.

If 6 or less:

There are two possible outcomes. If the total damage inflicted on the Sorpe Damis 7 or more:

Outcome Second Attack on the Sorpe Dam

14


Scenario 5: Attack on the Ennepe Dam?

The scenario ends if the Lancaster is destroyed, a Night-fighter attacks, or, at the end of a turn in which AJ-O no longer carries Upkeep (in which case it returns to base). If still not over at the conclusion of Turn 8, keep playing (Turn 1 follows Turn 8, but make a new Visibility Check). If you play Turn 8 again, the Lancaster automati-cally returns to base (at the end of the turn).

If the bomber returns to Scampton, you must resolve its fate on the Return to Base table (RTB) [E1 on the player aid (use the Ruhr Flight Zone modifier)]. Do this before interpreting the scenario’s outcome on the Debriefing Chart.

And, if you damaged the dam, you must also perform Morning Recon [E3], before determining the outcome on the Debriefing Chart.

Somewhere in the Ruhr, 0330 hours, May 17, 1943

While already in the air, Flight Sergeant Townsend piloting AJ-O received orders via wireless telegraphy to attack Ennepe Dam. There was fog, searchlights and flak en route, and after great effort and dumb luck he and his navigator managed to locate the dam.

They arrived in its vicinity at approximately 0320 and noticed mist clung to the valley lowland obscuring the target. AJ-O circled for several minutes before the crew picked the dam out of the dark landscape. Making several passes to find the right trajectory, strug-gling against poor visibility while the fog on the reservoir rendered altitude control ineffective, AJ-O let drop Upkeep on the fourth run.

Released at 0337, it bounced into the fog and detonated. After circling to assess the damage, Townsend signaled “Goner78” to Grantham and then turned back to Scamp-ton.

But was it the Ennepe Dam? As far as Townsend and his navigator were concerned, it was, and that’s what they assumed during the debriefing. Decades later, however, German eye-witnesses as well as alleged fragments from

AJ-O carries Upkeep (draw randomly; do not peek at back).

green FranklinAJ-O

endnotes

special rule: Fog of War

Visibility starts as “fog” in this scenario. All visibility rolls have a -2 modifier due to the hour (it is Turn 7 on the Flight Turn Track).

visibility

You have a green crew, foggy weather, and Nightfighters hunt you. You have only one mine, and quite frankly you don’t even seem to know which dam you’re attacking.Expectations are not high.

difficulty

the mine would come to light suggesting that AJ-O attacked the Bever Dam. Holding back the water of a small artificial reservoir a few miles from the Ennepe, the Bever may have been mistaken for the intended target.

Unlike the Ennepe, however, the Bever was not a gravity dam. Instead, it was akin to the Sorpe, which means there was virtually no hope of breaching it with a single shot.

Each time your Lancaster enters the Approach (during the Run Phase), roll a die to determine which dam your bomber is (probably) attacking: EVEN = Ennepe, ODD = Bever. Use the appropriate Target Map and dam’s Status Record Track as determined by that die roll (the damage needed to breach is thus dependent on the dam “selected” by that roll of the die). You may have to shift markers and move your Lancaster from one Target Map and Status Record Track to the other each Run Phase.

attach a Veteran aircrew to the Lancaster (instead of Green);

set the Visibility at the start of the game to Clear (place the marker anywhere on the Approach Vector Check table located on the mapsheet);

set the Alert Level to 1;

ignore the Special Fog of War rule; attack Ennepe Dam (use the Möhne Target Map).

If this is your first go at playing this game, we suggest you make four changes to this scenario:

�rst time?

Lancaster aircrew elite crewmanbomber & crew

15



AJ-O’s aircrewis green


in another cup

attach a randomly drawnordnance marker to AJ-O

AJ-O starts Circling Near

Target Map

The GREEN aircrew’s training levels are 2

(Veteran training levels are 5)



visibility = fog


Use either the Möhne or Sorpe Target Map. The Möhne repre-sents Ennepe Dam while the Sorpe represents Bever. The special Fog of War rule [p. 15, Scenario Book] may have you switch from one Target Map to the other during the Run Phase of this scenario.

?

Engl

ish

Coas

tN

orth

Sea

Ruhr

Wes

er

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION


AL ITUDE & PEED

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

32

RECO

N. L

EVEL

10

Turn 8

53

urn 1

00

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast


MOHNE DAM

0

0 2 3 41

EDER DAM

l

0 2 3 41

SORPE DAM

0 2 3 41

BEVER DAM

0 2 3 41

ENNEPE DAM

0 2 3 41


pp o ch& e e se


A1

MÖHNE DAM

EDER DAM

SORPE DAM

Tu n 3

2 00

u n 2

2 00

u n 1

2 00

T rn 6

2 0

Tu n 5

0 00

Tu n 4

0 00

Tu n 9

500

T rn 7

3 0

F ight Turn

urn 0

600R B

T rn 8

4 0


Engl

and Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Ta getAcqu s t on

Ta get Map


Re olveHaza ds

Coo dina ion


3 C ea e W ve


1 2 3

0

ALRM

Flight Map

SORPEDAM

EDERDAM

ISTERDAM

DI MELDAM

ENNEPEDAM

B VERDAM

HENNEDAM

MOHNEDAM

ALERT

RECON waterlevel

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 chi

approach

65ft2 chits

phaseattack

TURNattack

moon

Turn 8

:53

Turn 1

:00

Turn 7

:45

Turn 2

:07

vis bilitycheck

visibilitycheck

v sibilitycheck

Turn 6

:37

Turn 3

:16

Turn 5

:30

Turn 4

:23


Approach& Release


0

1

2

3

4

EderSorpe

or Beverotherdam

M

M

M

M

A

S

S SS SS SA SSSSSS

A AA A

SSS

AA AA

S S SS

AS

SS

AAA A AS

S S

AASS

AA A

SSS

A A AAS

S SS

AA AAA

S

AA

S S

A A AS

S S

A A AAAA

S

AA

S

A AS

S

A AA

A AA AAA A

S

AS AS

A2

A3

A1

die roll

FOG

FOG

FOG

FOG

FOG

1 3

+ + +

++

+ ++ + ++

+ + + +

+ + +

+ + + + + +

+ + + + + +

4 5 6die roll

1 2 3 5 6die roll

1 2 3 4 5 6

key

ReconLevel


Ch t

1 Alt tude Ch t


Attack Phases

+1

fog

ENNEPE or BEVER

Upkeep1

1

Attack on the Ennepe Dam?aircraft & attachments...

mapsheet...

AJ O

1

GREENtrain ng

le elmarker

GREENtraining

le elmarker

GREENtrain ng

levelmarker

Greenaircrew

1

16


Dam’sStatus Lancaster

RTB

missing ordestroyed

breached

damaged

Upkeep released but

dam notdamaged

RTB

missing ordestroyed

RTB

missing ordestroyed

norelease

Will the crew bail out?

Roll a die: If EVEN, the pilot managed to gain enough altitude for the crew to bail out; if ODD, the bomber is destroyed before the crew can leap out. If they bail out roll another die: that many survive long enough to become prisoners of war but won’t come to know they are celebrated war heroes until liberation.

The pilot is awarded a DSO, and the bomb-aimer receives a DFM. But roll a die: if a 6, the pilot earns a Victoria Cross instead.Three dams breached! Had this been the Sorpe, in conjunction with the breaching of the Möhne and Eder Dams, the damage to Germany’s war industry would have been devastating. Nonethe-less, Adolf Hitler is furious, and blames the Luftwaffe. By his order, the nightfighter force over the Ruhr is strengthened, stripping air assets elsewhere.

unexpected victory!

downed victors

Of all the anecdotes exchanged in the days following the raid, this crew’s story seems the most unlikely. When A.O.C. Cochrane reads the debriefing report, and at the squadron commander’s recommendation, the pilot is awarded the DSO. Nevertheless, it will not be confirmed until long after the war, whether the Lancaster attacked the Ennepe or the Bever Dam.

good show

a puzzle

The wireless operator at Grantham has been puzzled much of the night. He despatched orders to the Lancaster, and resent them several times, unsure if receipt was confirmed. Did the crew find the Ennepe Dam? Did they attack it? What happened to it?

vanished

After a harrowing return flight the Lancaster touches down at Scampton in the morning light. During the debriefing it is difficult to know who is telling whom what happened. After an hour, the pilot and his crew are no longer sure they even located the Ennepe Dam, or any dam at all. Finally, an exhausted navigator exclaims, “It was bloody dark!”

a confusing night

The Lancaster’s last wireless transmission was garbled. It’s fate unknown to 5 Group headquarters at Grantham, it is only after morning recon reveals damage inflicted on the Ennepe that it is guessed AJ-O made it to the target and successfully released Upkeep. And yet, after the war, German sources will come to light suggesting that it was actually the Bever and not the Ennepe Dam that was attacked.

But what of AJ-O and its aircrew? Roll a die to find out:The Lancaster’s fate remains a mystery;The crash site 40 miles from the reservoir will be marked decades after the war;Two crewmen managed to bail out before the crash, but only because they pulled the ripcord of their parachutes before leaping out;The Lancaster crashes, but there is a severely injured survivor! Roll another die: if EVEN, he is captured and survives the war, but if ODD, locals find him in the morning, dead.

RTB

missing ordestroyed

Although the attack on the dam failed, the lads back at Scampton seem amused, and impressed, by the story of the crew’s struggle to locate a dam (any dam!).

a �ne anecdote

M.I.A.Grantham is not sure what orders the Lancaster received, since transmissions were garbled all night. It is not even sure the crew reached its target. Roll a die: if EVEN, one crew member managed to bail out, elude capture, and escape to the Dutch underground. In August he is ferried back to Britain and tells his harrowing tale. If ODD, the fate of the downed Lancaster remains unknown until the 1970s when the graves of the dead flyers are located and marked.

Outcome Attack on the Ennepe Dam?

12-3

4-5

6

17


c. A Three Dam Night: combine scenarios 1-4

d. Two Lone Attacks on the Sorpe:combine scenarios 3 & 4

a. Primary and Secondary Targets:combine scenarios 1 & 2

Return to Base (RTB)

Outcomes

Morning Recon

b. Targets X, Y and Z:combine scenarios 1 & 3 & 2...and 3 again?

Combining Attack Scenarios

This combination incorporates the diversionary attack on the Sorpe Dam. You may come to appreciate the effect a successful diversion might have had. It also gives you the opportunity to surpass the histori-cal result of 617 Squadron’s raid -- it’s a shot at breaching a third dam.

Procedure:Follow the procedure described for combining scenarios 1 and 2 (combination a), except play Scenario 3 BEFORE playing Scenario 2. If you end Scenario 3 with a Nightfighter “nearby” (or it attacked), you earn one free re-roll on the Nightfighter Check table when you play Scenario 2. This simulates the successful diversion over the Sorpesee Reservoir.

At the conclusion of Scenario 2, if you breached the Eder Dam, re-play Scenario 3 using just those bombers that survived Scenario 2 AND still carry Upkeep (and the leader too, even if not carrying Upkeep). Start on Turn 1, set the Alert Level to 3, and visibility starts as FOG. If none carry Upkeep, game over. If Möhne was not breached, you may attack Möhne instead of Sorpe (set the Alert Level to 2 in this case; visibility begins as FOG).

In summary, play this sequence:1. Attack on the Möhne Dam (Scenario 1);2. Diversionary Attack on the Sorpe Dam (Scenario 3);3. Attack on the Eder Dam (Scenario 2);4. Attack on the Sorpe Dam (Scenario 3 again).

Use the Debriefing Charts after each scenario to check the progress of the raid. Generally speaking, if you breach all three dams, you achieve a victory of strategic impor-tance.

Follow the above procedure described for combining Scenarios 1-3 (“Targets X, Y and Z,” combination b). When finished, if the Sorpe Dam is not breached, play Scenario 4.

Play Scenario 3, then play Scenario 4.As a variant, when you play Scenario 4, add the Lancaster in Scenario 5 (AJ-O), assuming the “what if ” situation that it received orders to attack the Sorpe instead of the Ennepe and arrives while AJ-F is there. AJ-O’s arrival is variable: roll a die at the start of the Status Phase. If the die roll is EVEN, the Lancaster arrives (place it in the Circling Far Box). If ODD, try again next turn. Use Scenario 4’s Debriefing Chart, and if both Lancasters return to Scampton, use the “RTB” row.

The Möhne Dam was 617 Squadron’s primary target and Eder Dam was its secondary. This combination allows you to appreciate just how crucial it was to breach the first dam while still carrying enough ordnance to effectively attack the second.

Procedure:Play Scenario 1, and if you breach the dam or the scenario ends by a Nightfighter attack, transfer all remaining Lancasters still carrying Upkeep, as well as the leader (even if not carrying Upkeep), to the Eder Target Map. However, Lancasters that scattered from the Circling Near Box return to base, they do not proceed to Eder. Play Scenario 2 using these transferred Lancasters only, not those indicated in the scenario instructions. (Yes, this means you may have more, or maybe fewer, bombers to work with.) All other conditions and instructions particu-lar to Scenario 2 apply.

When Scenario 2 concludes, all surviving Lancasters return to base (resolve on the RTB table), and then deter-mine the overall outcome on Scenario Two’s Debriefing Chart.

At the end of a scenario, Lancasters without Upkeep return to base (except the leader in Scenario 1 & 2; it stays). Place returning bombers in the RTB Box on the Flight Map, in the appropriate Flight Zone. For example, if returning from the Eder Dam, place in the RTB Box of the Weser Flight Zone. Resolve the fate of ALL returning Lancasters at the end of the game, not at the end of each scenario.

After each scenario, use the Debriefing Chart to check the progress of the raid. For the purpose of tracking progress, assume all RTB Lancasters arrive safely in Scampton.

Use the Debriefing Charts of the appropriate scenarios to determine the outcome of the sequence as a whole, unless playing sequence b, c or e. For those, use the Debriefing Chart for Scenario 9 (but add 5 to the number of Lancast-ers that returned to base safely).

Resolve Morning Reconnaissance at the end of the game, not after each scenario.

The scenarios may be played as a sequence (the combina-tions are listed below). Be sure to “refresh” Target Maps between scenarios. For example, remove the Very Light Flare markers from the Attack Turn Track and reduce the Activity Level accordingly. Released Upkeep, however, should remain on the dam’s Status Record Track.

18


e. 617 Squadron Attacks!combine scenarios 1-5This is the complete raid. It combines all five attacks, but with a twist.

Procedure:Play “A Three Dam Night” combination (c), and add the variant described in the “Two Lone Attacks on the Sorpe” (d). The twist for the variant is that AJ-O may attack any of the three dams (Möhne, Eder, or Sorpe). It attacks separately, in a final scenario (Alert Level 3; Fog; start on turn 1).

When the sequence of scenarios is completed, refer to Scenario 9’s Debriefing Chart to determine the outcome (but add 3 to the number of Lancasters that RTB).

Flight Scenarios (scenarios 6-9)

aircrew training levelsMission Planning Blotter:

Flight Map:

Status Record Tracks & Target Map

Use the training levels indicated on page 2 of this book, as described in the set up instructions for attack scenarios.

From left to right set up the mapsheet as follows:

alert levelUnless noted otherwise, the Alert Level is 1.

recon levelThe Recon Level of each hostile Flight Zone is 2.

Lancasters & wavesPlace bombers and their attachments in the England zone of the Flight Map, or in their respective wave groups (use the Wave Holding Boxes player aid, or just set them aside in a convenient place on your gaming table). Place waves in the England zone.

phase markerPlace the Phase marker on the Coordination Phase in the sequence of play box next to the Flight Map.

hazard markersSort the Hazard markers by color (colors correspond to Flight Zones). Place each group in an opaque cup. During the Place Hazards Phase you will randomly select markers to attach to waves and independent aircraft.

visibilityDetermine visibility only when using a Target Map (i.e., when a bomber successfully acquires its target). Do this separately for each acquired dam, during the start of the Target Map Phase.

approach and release chitsPut these in cups, as per set up for attack scenarios [p.2].

activity levelsEach dam starts at zero, except Sorpe in Scenario 8. It starts at 1.

water levelsPlace a water level marker on each dam’s record track. All dams are “full.”

recon levelsMöhne, Eder and Sorpe are at Recon Level 2, while all other dams are at Recon Level 1.

searchlight & balloons defensesNone of the dams have Searchlight or Balloons defenses (they are at level 0). Set those markers aside. If you play a follow-up raid (if allowed by the scenario’s outcome), searchlight and balloons defenses may come into play.

flak defensesMöhne has a flak defense level of 3. All other dams have Flak levels of 0 (zero -- no flak).

19


Upkeep distorted compass readings, and the practice at Scampton had been that after installing the mine aboard the Lancaster, the compass would be calibrated. The readings were then recorded on a card, allowing the navigator to compensate for the presence of the mine during flight. AJ-T had just arrived at Scampton, and its mine had been installed but the compass had not yet been calibrated. This meant that McCarthy’s navigator could not rely on the compass until Upkeep was released.

Unable to catch up with the formation he was supposed to lead, McCarthy piloted AJ-T towards Sorpe as best he could. The Lancaster encountered a variety of challenges along the way. The crew spotted nightfighters overhead but eluded them, and while flying low the Lancaster sustained damage from flak, but arrived at the target a few minutes past midnight (Scenario 3). After several runs Sgt. Johnson released ordnance and McCarthy headed home.

The scenario ends when all Lancasters are in RTB Boxes or are destroyed. When it ends, resolve the fate of all RTB aircraft and check Morning Recon. Interpret the scenario’s outcome by using the scenario’s Debriefing Chart.

Scampton: 2100 hours, May 16, 1943

The wave took off at 2100 hours, the first of 617 Squadron’s bombers to rise into the night towards the dams. The flight route passed over the Dutch Frisian Island chain, a longer route necessitating their early take-off. AJ-E flew over Vlieland first, at 2255 hours, and must have alerted flak gunners below because they opened fire on the next Lancasters. AJ-W was hit by 20mm anti-aircraft fire that knocked out its VHF radio, rear gun and compass, inspiring Flight Lieutenant Munro to turn the Lancaster back to Scampton. Meanwhile, AJ-K had drifted a few kilometers south and climbed to nearly 500 feet before visually confirming bearings, when it too was hit by flak. The Lancaster was set ablaze and crashed. Next in line, Pilot Officer Rice kept AJ-H so low throughout the cross-sea route that by landfall the bomber had to veer in order to avoid sand dunes. It struck the crest of waves, dislodg-ing its ordnance, and then turned back for base. Flying on, AJ-E struck electrical wires, caught fire, and crashed near the Rhine.

All this action alerted the local nightfighter wing, and several Me110s from Leeuwaarden were scrambled, but cruising at over 3000 feet their pilots were unable to spot the only Lancaster of the diversionary force still flying, the late-comer AJ-T. Flight Lieutenant McCarthy was a veteran pilot, an American who had joined the RCAF in 1941, and now commanded a less experienced aircrew. He was supposed to take off with the rest of the diversionary wave, but one of his Merlin engines leaked coolant, so he and his crew abandoned AJ-Q and hastily boarded AJ-T. It took off late and although he tried his best to make up speed, AJ-T remained a straggler.

seasoned

Wave:

independent aircraft:

green

seasoned

seasoned

seasoned

Gillespie

-

-

-

McCarthy or Johnson(begins with Compass Cardhazard already attached)

AJ-H

AJ-K

AJ-W

AJ-T

AJ-E(leader)

endnotes

Sorpe Dam is the Primary Target of all bombers. They have no Secondary Target. Ennepe Dam is the target of last resort. Möhne and Eder may not be designated a Primary Target in this scenario.

primary & secondary targets

Skip the Wireless Phase until either Sorpe Dam is breached or a Nightfighter attacks.

special rule: Wireless Phase

Your goal is to breach the dam (very difficult), but your secondary aim should be to stir trouble (easy). Your biggest challenge is the quality of your crews, but expec-tations are not high.

difficulty

Scenario 6: Flight of the Diversionary Force

Place in the England zone: 1 wave (contains 4 bombers), and 1 independent aircraft. All Lancasters start undam-aged and carry Upkeep. Draw randomly and don’t peek.

Lancaster aircrewelite crewman(if two are listed, select one)

bomber & crew

20


altitude chits

ALERT level 1

speed chits

Recon Level 2

water level = fullrecon level = 2activity level = 0DAM’S STATUS:

Engl

ish

Coas

tN

orth

Sea

Wes

er

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION


AL ITUDE & PEED

3

RECO

N. L

EVEL

10

3

RECO

N

EVEL

10

Turn 7 urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast


MOHNE DAM

0

0 3 41

EDER DAM

l

0 2 3 41

SORPE DAM

0 2 3 41

BEVER DAM

0 2 3 41

ENNEPE DAM

0 2 3 41


pp o ch& e e se

Ci cl ngRun S atus Check

A1

MÖHNE DAM

EDER DAM

SORPE DAM

2 00

u n 2

2 00

u n 1

2 00

Tu n 9

500

urn 0

600R B

T rn 8

4 0


Ela

nd Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Ta getAcqu s t on

Ta get Map


Re olveHaza ds

Coo dina ion


3 C ea e W ve


1 2 3

0

ALR

Flight Map

SORPEDAM

EDERDAM

ISTERDAM

DI MELDAM

ENNEPEDAM

RDA

MOHNEDAM

weave& jink

Pilot

+1

BombAimer

RECON waterlevel

compasscard

FirstWave

leader

place AJ-T in the ENGLAND flight zone place the wave in the ENGLAND flight zone

AJ-T begins the scenario independent.If AJ-T joins the wave, AJ-T immediatelybecomes wave leader. AJ-E is wave leader

aircrew is seasonedaircrew are seasoned except AJ-H (it is green)

attach a randomly drawnordnance marker to theaircraft

AJ-T starts with theCOMPASS CARDhazard attached to itsUpkeep marker

attach a randomlydrawn ordnancemarker to eachaircraft

use McCarthy or Johnson

Seasoned aircrews are at 3,

Green are at 2

ALERT

EASONEDtraining

levelmarker

SONEDaininglevel

marker

SEASONEDaininglevelarker

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 chi

approach

65ft2 chits

put all altitude chits

in a cup, and all speed chits

in another cup

put hazard chits into their respective cups (2 cups, one for yellow and light blue; you

probably won’t need dark blue hazard markers in this scenario)

RECON

RECON

RECON

phase�ight

dilig

hts

TURN�ight

FirstWave

FirstWave

GREENtrain ng

le elmarker

GREENtraining

levelmarker

GREENtraininglevel

marker

Greenaircrew

1

Upkeep5

1pkeep

1

Upkeep

1

Upkeep

1

Upkeep

1

Seasonedaircrew

2

Seasonedaircrew

2

Seasonedaircrew

2

Seasonedaircrew

2

Flight Zones:

primary target is Sorpe

Ennepe is the target of last resort

start on Turn 1

avWave

yFirst

targe

t of

Last

Resort

Flight of the Diversionary Forceaircraft & attachments...

mapsheet...

SORPE DAM

21


RTB

Night-�ghter

RTB

Dam

Dam Outcome

breached

5

4+

1-3

0

5

2-4

dam isdamaged

dam is notdamaged

dam isdamageddam is notdamaged

1

0

1-4

0

notbreached

at dam:night�ghter

nearby(at least

once)or

attacked

at dam:night�ghternot nearbynor did one

attack

Although the RAF was unaware of it at the time, the two crucial dams to Germany’s war industry were the Möhne and the Sorpe (not the Eder and the Möhne). The water gushing from those two reservoirs inflicts nearly irreparable harm to the Ruhr, crippling Germany’s industrial production for weeks. Select one of the bombers: its pilot is awarded the Victoria Cross.

perfection!

The Prime Minister reads the names of all 35 flyers on national radio. In Berlin, Adolf Hitler describes those same airmen as “cowards,” and vows that the Luftwaffe will retaliate tenfold.

roll a die to resolve the hunt for surviving airmen downed over Germany:

1 = those who parachute safely are soon caught; after interrogation they are shot;

2-4 = same as 1, except two �yers take weeks to catch;

5 = same as above, except one survives interrogation and sits out the war in a prison camp;

6 = same as above, except one �yer escapes to Britain.

roll a die to resolve the fate of surviving airmen downed over Germany:

EVEN = roll another die: that many survive prison camps;

ODD = a pair of flyers elude capture; roll another die: if EVEN, they escape to Britain, if ODD, they are shot on the run.

heroic sacri�ce

A Victoria Cross is awarded, but in Germany the Fuhrer is fuming at his Luftwaffe. Meanwhile, Albert Speer has the task of repairing the dams and restarting the Ruhr’s war production. The blow delivered by 617 Squadron seriously impaired Germany’s industrial capacity. Historians will view the dambuster raid as one of the turning points of the war.

turning point

Good work creating a diversion and returning safely. Better still if the dam was damaged.

mission accomplished

Diversion accomplished, but the cost was felt after the Lancasters touched back down at Scampton and the surviving crews filed into the mess hall. Too many empty seats.

costly diversion

Roll a die, add +1 if the dam was damaged: if 4 or higher, intercepted German radio transmissions give Grantham an idea of what happened; if 3 or less, the Diversionary Force disappeared into the night and the story remains a mystery until after the war.

mystery

Roll 2 dice: that many flyers survive the war in prison camps. Only upon their release will the full story of the doomed Diversionary Flight come to light.

vanished

The debriefing is long and tedious. frustrated

DSO awarded to the pilot or bomb-aimer of each Lancaster that damaged the target.

safe return

The returning crew shares a much needed drink after the debriefing, shocked to learn that they are the only survivors.

carnage

Stories are told, medals awarded.

The Mess is strangely quiet.

memorable night

eggs

Outcome Flight of the Diversionary Force

22




Wing Commander Gibson organized nine Lancasters into three sections (three bombers each), taking off at approxi-mately 2130 hours. Each wave flew separately but on the same route, crossing over the Dutch coast at about 2300 hours. Gibson’s vanguard wave by then had drifted south of the intended landfall point, but after climbing to 300 feet, and with the moonlight, Gibson’s navigator was able to recalculate an adjusted course to the next turn point on the route. Avoiding German nightfighter bases and known concentrations of anti-aircraft batteries, the Lancasters turned at the Rhine, but by then Gibson’s two wingmen had lost him. They continued on course but were engaged by flak from river barges and again near Dorsten, wound-ing two of AJ-M’s crew and damaging one of its four Merlin engines. AJ-A led the second wave on the first’s tale, but also encountered flak and navigational glitches, AJ-L falling away from the other two bombers ultimately arriving at the target a few minutes late. The third wave followed and AJ-B piloted by Flight Lieutenant Astell struck an electrical wire pole as it made a navigational adjustment. Its ordnance bounced and rolled, and then exploded several hundred feet away. None of the crew survived.

AJ-G arrived at the Möhne Dam first, made an initial low-altitude pass to survey the defenses and the configuration of the dam and its approach, which may have alerted the flak gunners. Using VHF radio and Very Light flares, Wing Commander Gibson oriented the rest of the pilots, and then ordered them to circle out of sight while he made the first run. (Here begins Scenario 1.)

After verifying the breach in the dam, Gibson led the three Lancasters that still carried ordnance to the secondary target (Eder Dam – Scenario 2). The other bombers returned to base (AJ-Z was hit by flak and crashed at approximately 0230, and AJ-A was hit by flak on the Dutch coast and crashed at 0300). After the last Upkeep was loosed on Eder Dam, breaching it, Gibson led the remain-ing Lancasters back to Scampton. Although the plan was to regroup at Möhne, the bombers returned by a variety of independent routes.

veteran

Wave:

veteran

veteran


Hopgood or Gregory

Martin or Leggo

AJ-M

AJ-P

AJ-G(leader)

veteran

Wave:

seasoned

veteran

Young

Nicholson

Shannon or Walker

AJ-J

AJ-L

AJ-A(leader)

veteran

Wave:

seasoned

veteran

Knight

-

-

AJ-B

AJ-Z

AJ-N(leader)

endnotes

Möhne Dam is the Primary Target of all bombers. Their Secondary Target is Eder. Sorpe Dam is their Target of Last Resort. Skip the Wireless Phase until Möhne has been breached.


Your goal is to breach two dams, but don’t be shy about breaching a third if you can. You’ve got the best flyers in 617 Squadron, and probably 5 Group, but you’re flying on the deck and flak awaits at Möhne. Much rides on the outcome, including an aeronautical engineer’s career.

difficulty

Scenario 7: Flight of the Main Force

Place all waves in the England flight zone: All Lancasters carry Upkeep (draw randomly; do not peek at back), and are undamaged.


bombers & crews

23


altitude chits

speed chits

Recon Level 2

ALERT level 1

Möhne, Eder and Sorpe are at Recon Level 2 (all other dams are at Recon Level 1 in this scenario).Activity Levels are 1 and all Water Levels are Full.

Wes

er

0 1 2 3 4

0 1 2 3 54 6 7

0 1 2 3 4

NAV GA ION


AL ITUDE & PEED

3

RECO

N. L

EVEL

10

3

RECO

N

EVEL

10

Turn 8

53

urn 1

00

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast


L

MOHNE DAM

0 2 41

EDER DAM

l

0 2 3 41

SORPE DAM

0 2 3 41

BEVER DAM

0 2 3 41

ENNEPE DAM

0 2 3 41

pp o ch& e e se

Ci cl ngRun S atus Check

A1

EDER DAM

SORPE DAM

Tu n 3

T rn 6

2 0

Tu n 5

0 00

Tu n 4

0 00

T rn 7

3 0

F ight Turn

T rn 8

Move

Wi ele s

Nav gat onChe k

Coo dina ion


3 C ea e W ve


M

SORPEDAM

EDERDAM

ENNEPEDAM

B VERDAM

HENNEDAM

MOHNEDAM

ignoremage

P

e once

H

ignoremap error

once

ignoremap erroruse once

P Approach

Vector

r

Nav.check

Pweave

ink once

FirsWave

leade SecondWav

leader

ThirdWave

leader

AJ-G is wave leader AJ-N is wave leaderAJ-A is wave leader

Veteran aircrews are at 5, Seasoned

are at 3

oach

mph

1 chit

approach

239mph

2 chit

approach53f1 ch

approach

65ft2 chits



in another cupput hazard chits into their respective cups

(3 cups, one for each color)

FLAK

RECON

RECON

waterlevel

waterlevel

RECON

RECON

RECON

ALERT

place each wave marker in the ENGLAND flight zone

SEASONEDaircrew

levelmarker

SEASONEDaircrew

levelmarker

SEASONEDaircrewlevel

marker

Aiv

L

phase�ight

ilig

hts

TURN�ight

Veteranaircrew

3

eranrew

3eteran

aircrew

3

Vetairc

Veteranaircrew

3

Veterancrew

3

FirstWave

FirstWa

SecondWave

SecondWav

ThirdWave

ThirdWave

Veteranaircrew

3

FirstveWave

ddSecond

veWave

ddtThird

Wave

Upkeep1

1

Upkeep5

1

Upkeep5

1Upkeep5

1

Upkeep

1

Upkeep

1

pkeep

1

Upkeep5

1

Upkeep5

1

Seasonedaircrew

2

Seasonedaircrew

2

primary target is Möhne

secondary target is Eder

start on Turn 1

VETERANaircrew

levelmarker

VETERANaircrew

level

marker

VETERANaircrew

levelmarker

WaveWaveFirst F

WaveWave

ySecond

WaveWaveThird

targe

t of

Last

Resort

Sorpe is the target of last resort

Flight Zones:

Flight of the Main Forceaircraft & attachments...

mapsheet...

24


Eder Sorpe RTB

RTB Outcome

Möhne

Möhnebreached

Ederbreached

Sorpebreached

Sorpenot

breached

1+

4+

1-3

0

5+

1-4

0

6+

3-5

1-2

0

0

Edernot

breached

Möhnenot

breached

roll a die to resolve the fate of airmen downed over Germany:

1-2 = there are no survivors, one of the risks of this low-altitude mission;

3-5 = those who parachute safely are soon caught; most survive the war in prison camps

6 = some survive and are caught, but one escapes, finds the Dutch underground in a place called Arnhem; he is “rescued” by British paratroop-ers in September 1944.

One dam breached and at least half the force returned to base. Acceptable perhaps, but the job was left unfinished. Now that the Luftwaffe knows about the bouncing bomb, Air Chief Marshal. Harris is inclined to drop the dams as a primary target. The element of surpise is lost, and the other dams will surely be well defended.

marginal success

RAF losses are devastating, but the dam was breached! Treated as a success by the press, several airmen are decorated, but privately Bomber Command is slow to explore the potential of Barnes Wallis’s peculiar ordnance, or any other gizmo on his drawing board.

hard fought

Air Chief Marshal Harris is fuming. Nine Lancasters lost, and nine crack aircrews wiped out, including some of the best men in Bomber Command. The strategic value of breach-ing a single dam is questionable, and now the RAF has just tipped the Germans off that it is targeting the Ruhr Valley dams. Harris hopes that at least the attack on the Möhne will work as a distraction, diverting resources and defenses from more vital targets that Bomber Command can concentrate on effectively.

bloody diversion

The cracks in the Ruhr dams signal the breaking of Germany’s industrial back. A Victoria Cross is awarded, as well as other decorations to returning aircrews. The tide of war has turned.

smashing victory

Air-Vice Marshal Cochrane congratulates the returning crews. He recommends several airmen for decorations. The losses are so great, however, that 617 Squadron is dissolved, its personnel reassigned to other squadrons.

success

Barnes Wallis is congratulated, yet he is greatly disturbed by the casualty list. Air Chief Marshal. Harris avoids him, believing the losses of elite aircrews outweigh the gains.

dear success

Barrage balloons will soon float over the remaining dams in the Ruhr, and Germany’s Ministry of Armaments and Munitions will devote material and personnel to the repairing of the dams. Recovery will take weeks. Meanwhile, the British press is informed and headlines declare victory. A Victoria Cross will be awarded, as well as many other decorations. Vindicated, Barnes Wallis will continue work on other unique types of ordnance. The war goes on.

brilliant success

Intercepted German radio transmissions give Grantham an idea of what happened, but the full story will remain obscure for decades. Morning recon reveals that all three dams were breached, but Air Chief Marshal Harris questions the efficacy of the raid. His best pilots and crews were lost in a single night. Meanwhile in Germany, Adolf Hitler is blind with rage as Albert Speer delicately explains the scale of the calamity.

awful victory

The RAF decommissions the squadron. The number “617” becomes taboo amongst superstitious airmen for at least seven decades.

slaughter

Barnes Wallis is mortified by the losses and scarcely has the will to interview surviving aircrews. Bomber Command shelves his bouncing mine.

futility

The squadron is disbanded, surviving aircrews assigned elsewhere. Barnes Wallis is denied access to the Ministry of Economic Warfare and RAF facilities.

catastrophe

The raid fails, but losses could have been worse. Barnes Wallis is keen to talk to the crews. What went wrong?

experiment

Outcome Flight of the Main Force

25


Randomly draw an Upkeep marker and place it on Sorpe Dam’s Status Record Track. It represents damage inflicted by Lancasters earlier in the night (don’t reveal the amount of damage until you have a bomber in the Circling Near Box during Step 4 of the Status Phase of an Attack Turn [this is explained in rule 4.4.4]).


Five Lancasters of the airborne reserve took off shortly before midnight and were under the direct command of 5 Group’s AOC, Air Vice-Marshal Cochrane. The intention was to direct these bombers to targets after the results of the first attack were communicated back to 5 Group by way of wireless telegraphy. The reserve would be directed via wireless as well.

Like the other waves, these Lancasters flew at 1500 feet over England and then dropped below 100 feet as they crossed the sea. Following the main force’s route, they reached the Dutch coast but faced alert defenders. Night-fighters flew overhead and flak guns were poised to fill the moonlit sky with tracers. At 0200 AJ-S was hit at the coast and crashed near a German airfield. Shortly afterward, Cochrane issued target designations over the wireless, countermanding them five minutes later with new targets. The flurry of encoded orders confused the wireless opera-tors. Ultimately, AJ-O was instructed to attack Ennepe Dam, while the others were directed to attack Sorpe Dam.

While cruising over hills and empty valleys, skirting known concentrations of flak, Pilot Officer Ottley’s Lancaster was illuminated near Hamm by searchlights and knocked down by flak. Only the tail-gunner survived. Flight Sergeant Brown piloted AJ-F to Sorpe and attacked it shortly after 0300 (Scenario 4), returning to base after nearly being downed by blinding searchlights and flak at the coast. Meanwhile Flight Sergeant Anderson failed to locate his target, ultimately steering AJ-Y back to Scamp-ton, ordnance still intact. Flight Sergeant Townsend and his crew attempted to find Ennepe Dam, but probably attacked Bever instead (Scenario 5), and returned to base at 0615 after eluding nightfighters alerted by AJ-F’s narrow escape across the sea. Altogether, it was a harrow-ing and decidedly unsuccessful flight.

seasoned

Wave:

seasoned

green

seasoned

green

Guterman

-

Townsend or Franklin

-

-

AJ-F

AJ-O

AJ-S

AJ-Y

AJ-C(leader)

previous damage to Sorpe Dam

The wave’s Primary Target is Möhne, and its Secondary Target is Eder. However, Möhne will be breached by the main force on Flight Turn 4, but the airborne reserve will not know this when it takes off. Eder Dam will be breached on Flight Turn 5, but again, the wave will not know this unless informed by Grantham via wireless telegraphy. Ennepe Dam is the Target of Last Resort.


Starting on Flight Turn 5, you may perform wireless telegra-phy actions during the Wireless Phase of the flight turn. Bomber Command has reassigned the Reserve’s Primary Target to Sorpe Dam, which means you must attempt to assign it as the new Primary Target (during the Wireless Phase).

As per rule 6.4.4, if you are not successful in changing the Primary Target by wireless telegraphy, the Lancasters must fly to the Möhne Dam. Once there, the crew sees that the target is breached, and their Secondary Target automatically becomes the new primary target. This means they must fly to Eder, and when they see that it too has been breached, they must fly to the Target of Last Resort (Ennepe).

wireless telegraphy

Your goal is to breach a dam (you don’t get credit for Möhne or Eder, so it’s got to be another dam). You don’t have the best aircrews in the squadron though, and by the time they reach the enemy coast two dams will have been breached, and thus, the Germans will be active. This won’t be easy.

difficulty


endnotes

Scenario 8: Flight of the Reserve Force

Place in the England zone. All Lancasters carry Upkeep (randomly selected; don’t peek at back of Upkeep markers).


bombers & crews

26


altitude chits

ALERT level 3

speed chits

Recon Level 2

Möhne, Eder and Sorpe are at Recon Level 2 (all other dams are at Recon Level 1 in this scenario).

Engl

ish

Coas

tN

orth

Sea

RW

eser

0 1 2 3 54 6 7

0 1 2 3 54 6 7

0 1 2 3 54 6 7 8

NAV GA ION


AL ITUDE & PEED

3

RECO

N. L

EVEL

10

RECO

N

10

3

RECO

N

EVEL

10

Turn 8 urn 1

Turn 7

45

urn 2

07

v s b i yhe k

v s bi tych ck

v s b i yheck

Turn 6

37

urn 3

16

Tu n 5

30

urn 4

23

Attack Turn

Dut

ch C

oast

Mission Planning Blotter arget Maps

OHNE DAM

0 41

l

0 2 3 4

SORPE D

0 2 3 41

BEVE M

2 3 41

NNEPE DAM

0 2 3 41


pp o ch& e e se

Ci cl ngRun S atus Chec

MÖHNE DAM

EDER DAM

SORPE DA

rn 6

0

Tu n 5

0 00

Tu n 4

7

ight Turn

Engl

and Move

Wi ele s

Nav gat onChe k

P aceHaza ds

Ev deHaza ds

Re olveHaza ds

Coo dina ion


3 C ea e W ve

Attack Turn

1 2 3

0

ALRM

Flight Map

SORPEDAM

EDERDAM

DI MELDAM

ENNEPEDAM

B VERDAM

HEDAM

MOHNEDAM

PS EET

A

l

FirstWave

leader

AJ-C is the leader of the waveattach a randomlydrawn ordnancemarker to eachaircraft

Seasoned aircrews are at 3,

Green are at 2

ALERT

ASONEDtraining

levelmarker

ASONEDaininglevelarker

oach

mph

1 chit

approach

239mph

2 chits

approach531 ch

approach

65ft2 chits



in another cupput hazard chits into their respective cups

(3 cups, one for each color)

RECONwaterlevel

RECON

RECON

RECON

place each wave marker in the ENGLAND flight zone

phaseattack

dilig

hts

TURN�ight

FirstWave

FirstWave

FirstveWave

dd

GREENtraining

le elmarker

GREEtrainin

le elmarke

SEASONEDtraining

levelmarker

GREENtraining

le elmarker

Greenaircrew

1

Greenaircrew

1

Upkeep

1Upkeep

1

Upkeep

1

Upkeep

1

Upkeep

1Upkeep

1

Seasonedaircrew

2

Seasonedaircrew

2

Seasonedaircrew

2

start on Turn 3

primary target is Möhne

secondary target is Eder

tWaveWave

p m yFirst

target o

f

Last

Resort

Ennepe is the target of last resort

the dam is already damaged; reveal the damage during the Status Phase when you have a Lancaster Circling Near [4.4.4];

the ACTIVITY LEVEL starts at 1

Flight Zones:

Flight of the Reserve Forceaircraft & attachments...

mapsheet...

ignoremap error

use once

27


RTBDam

Outcomenot Möhneor Eder

3+

1-2

0

3+

0-2

5

4

3

1-2

0

don’t count pre-existing

damage

don’t count pre-existing

damage

neitherbreached

nordamaged

damaged but not

breached

breached

roll a die to resolve the hunt for surviving airmen downed over Germany:

1-2 = none survive;

3-5 = that many parachute safely are soon caught; most survive the war in prison camps;

6 = same as above, except one escapes and finds the Dutch underground, and makes his way to American forces in late 1944.

Two crews don’t return. After long debriefings, a hearty meal and a hefty drink, and a brief nap, Wing Commander Gibson and the squadron adjutant sit down to write letters to the wives and mothers of the men who did not return. Gibson would like to wait a day, just to see if word of their survival turns up, but the press is already abuzz with news of the raid.

letters home

As he and his adjutant write letters to the wives and mothers of flyers who did not return, Wing Commander Gibson can’t help but think how high a price the squadron paid to damage that dam. He recommends decorations for returning crews. Meanwhile, a letter of commendation to the squadron is being penned by A.O.C. Cochrane.

high price

Morning recon reveals that the dam was damaged, but it is not known which Lancaster was responsible for it.

disappeared

Three breached dams devastate Germany’s war industry. Select one of the returning Lancasters -- its pilot or bomb-aimer is awarded the Victoria Cross.

Success beyond all expectations! The Ruhr is flooded, its industrial capacity dramatically reduced for months. The Fuhrer is enraged that such an attack could do so much damage, and he personally oversees new measures to defend other industrial infrastructure, diverting vast resources from the Eastern Front.

decisive victory

Roll a die to determine the fate of downed flyers: if a 1, none survive, but any other result means that some either bail out or manage to land a damaged bomber in enemy territory. Of those who survive, most are taken prisoner and the rest die of injuries or are shot escaping camp or are killed during interrogation (the Germans are eager to learn everything they can about the bouncing bomb). Some of the captured flyers survive incar-ceration and are liberated in 1945, but many were presumed dead and records are not properly sorted out for months. Roll another die: if EVEN, one of those liberated men eventually learns that he has been awarded the Victoria Cross for his actions during the early morning hours of May 17, 1943. He is formally decorated at Buckingham Palace in 1946, the last veteran of the war to receive the VC.

the last VC?

Wing Commander Gibson congratulates the returning crews, recommending decorations for some of them after the debriefing.

harmless failure

Roll a die to determine the fate of the lost aircrew: EVEN, some of the crew escapes, either parachuting safely or scampering out of the downed aircraft (roll a die: that number escape the doomed bomber); if ODD, all die.

bail out?

Morning recon reveals no information, and wireless messages during the early morning hours were garbled or incomplete. The sacrifice of the Reserve Force mars an otherwise successful mission.

children’s crusade

Feeling lucky to have returned, the crews endure a relatively short debrief-ing and then settle into their bunks. Some eat first. Within a few hours the details of the attack on Möhne and Eder are told and retold. There will be other missions.

futile �ight

The returning flyers land in the early morning and soon find themselves in the debriefing room at Scampton. Exhausted, they recount the crucial details of the their flight, and soon learn that they suffered the worst that the Germans offered last night.

survived

Flight of the Reserve Force

Roll a die to determine the fate of missing aircrew:1 = all die either in their planes or soon after they bail out;2-5 = some survive, but are soon captured; they spend the rest of the war in prison camps, and some of those will attempt escapes; only a few will survive the war, and only then will the full story of the Reserve Force come to light;6 = same as above, except one escapee is not caught; he makes his way to the French coast, then to Britain, with the help of the French underground, and the story of his daring journey becomes one of the most popular reads of 1945 (his participation in the dambuster raid a mere footnote to the story).

28



This scenario combines Scenarios 6-8. Your goal is to breach two dams, or more, and you have 19 Lancasters to work with. The Alert Level begins at 1, and the Recon Levels of all dams is 1, except Möhne, Eder and Sorpe which are at Recon Level 2. All hostile Flight Zones are at Recon Level 2 as well. All Activity Levels are 0 (zero) and all Water Levels are Full. Flak at Möhne is at Level 3 but all other defense levels (at every dam) are at Level 0 (zero). You have the element of surprise, use it well.

veteran

Wave: primary target = Möhne; secondary = Eder

veteran

veteran


Hopgood or Gregory

Martin or Leggo

AJ-M

AJ-P

AJ-G(leader)

veteran


seasoned

veteran

Young

Nicholson

Shannon or Walker

AJ-J

AJ-L

AJ-A(leader)

veteran


seasoned

veteran

Knight

-

-

AJ-B

AJ-Z

AJ-N(leader)

endnotesAny dam may be selected, except Möhne, Eder or Sorpe.target of last resort

VARIANT Scenario 9v: free set up

The Airborne Reserve enters play on Flight Turn 3. Before the game begins you must assign Möhne as the Primary Target and Eder as the Secondary Target. You may not change these target designations prior to the Wireless Phase of Flight Turn 5.

airborne reserve

Scenario 9: The Dambuster Raid

seasoned

Wave: Airborne Reserve (see below)

seasoned

green

seasoned

green

Guterman

-

Townsend or Franklin

-

-

AJ-F

AJ-O

AJ-S

AJ-Y

AJ-C(leader)

Place in the England zone. All Lancasters carry Upkeep (randomly selected; don’t peek at back of Upkeep markers).

seasoned

Wave: primary target = Sorpe

independent aircraft: primary target = Sorpe

green

seasoned

seasoned

seasoned

Gillespie or Williams

-

-

-

McCarthy or JohnsonCOMPASS CARD attached

AJ-H

AJ-K

AJ-W

AJ-T

AJ-E(leader)

Place all waves and AJ-T in the England zone. All Lancasters carry Upkeep (select randomly; don’t peek at backs).

In this variant you are welcome to organize the 19 Lancast-ers as you see fit. Fly as many or as few waves as you like (some, none or all bombers may fly independently). You may start the scenario on any turn, but only 15 bombers may take off on the same turn. All bombers must have Primary Targets before you play the first Flight Turn. Also, before play begins, you must decide when each Lancaster takes off (i.e., which Flight Turn to place each aircraft in the England zone).

Assign targets any way you like, but only Möhne, Eder and Sorpe may be Primary Targets (if you’d like greater freedom to select Primary Targets, play Scenario 10). ALL LANCASTERS must have assigned Primary Targets before the game begins, and a bomber’s primary target may not be changed until it enters play [see rule 6.4.4 regarding how a Primary Target may be changed].

Your goal is to breach at least two dams. You’ve got the entire 617 Squadron, so, expectations are high.

difficulty

Lancaster aircrewelite crewman(if more than one is listed, select one)Lancaster aircrew

elite crewman(if more than one is listed, select one)

bombers & crews

29


secondarytarget third dam

RTB

RTB

primarytarget

Four dams breached

Eder anyMöhneOutcome

Outcomeab

Möhnebreached

Ederbreached

breached

notbreached

breached

notbreached

breached

notbreached

breached

notbreached

0

1+

c

e0d1-10

11+

f

h5-9

g10-15

j0i1-4

ee0dd1+cc0-6bb7-12aa13+z0y1-6x7-13w14+v0u1+t0

16+

k

m5-10l11-15

o0n1-4

16+

p

r5-10q11-15

s1-4

16+

Edernot

breached

Ederbreached

Edernot

breached

Möhnenot

breached

Scenario 9: The Dambuster Raid

(p.31)

(p.31)

(pp.31-34)

30


a

b

c

e

d

f

Adolf Hitler is dumbfounded when his Minister for Armaments and Munitions explains the implications of the raid. Through a shroud of rage he orders every measure necessary to repair the dams, defend them, and then demands to see a map highlighting every dam and reservoir in Britain. “Retaliation one-hundredfold” will be theme of his next radio address to the volk.

Meanwhile at Scampton, returning flyers celebrate, and mourn those they left behind. A Victoria Cross is awarded, as well as a bevy of other decorations. Headlines in the British press offer hyperbolic accolades. The Daily Mail blares “RAF SMASHES GERMAN INDUSTRY,” while the Illustrated London News declares the raid a “TRIUMPH.” Air Chief Marshal Harris later personally congratulates Barnes Wallis, offering support for any other ideas the engineer might have. In years to come historians will include the Dambuster Raid on the list of the war’s strategic turning points.

When Air Chief Marshal Harris hears that none of the Lancasters in 617 Squadron returned to Scampton, he is dumb-founded. From the very beginning he was suspicious of the bouncing bomb’s efficacy, and while waiting to hear details he begins a letter intended to remove Barnes Wallis from all association with the RAF and the Ministry of Aircraft Produc-tion. But then he receives the full report of breached dams, confirmed in the morning by reconnaissance aircraft, and his zeal dulls. The engineer’s unlikely device not only worked, it proved to be of strategic importance. Without apparent irony he is heard to exclaim, “I’ll be damned.”

Same as c (above), but with this added:In the early hours of May 17, shortly after the last returning Lancaster landed back at Scampton, telegrams began to tap out notifications to the next-of-kin of flyers who did not return. Letters would follow. The long casualty list mars an otherwise magnificent mission.

Coastal Command relays this to 617 Squadron: “Well done Scampton. A magnificent night’s work.” Since so few Lancasters were lost in the raid against the dams, the Germans remain oblivious of Upkeep. As one engineer confessed in his report later that month, “it is not known yet what type of explosive was employed.”

Meanwhile, back in Britain, a Victoria Cross is awarded, as well as several DFC’s, DSO’s, CGM’s and bars, keeping the King busy at Buckingham Palace in June and July. With most of its aircraft and crewmen intact, 617 Squadron is assigned other challenging and vital targets, including the German battleship Tirpitz using another device engineered by Barnes Wallis -- a ten-ton bomb codenamed Tallboy.

After several days of inspections, Albert Speer, Minister for Armaments and Munitions, reports that the RAF attempted to “strike at our whole armament industry by destroying the hydroelectric plants of the Ruhr.” In 48 hours Hitler approves Speer’s ambitious plan to strip other factories to restore electrical power service and to repair the broken dams before the autumn rains commence. Thousands of laborers are brought in to do the work, including more than 20,000 Todt Organization laborers employed building the Atlantic Wall in France, Belgium and the Netherlands. The Luftwaffe is also required by the Fuhrer to divert its resources to the Ruhr, installing barrage balloons, searchlight and flak batteries, and increasing nightfighter patrols over the area.

Meanwhile in Britain, the returning flyers celebrate, and mourn those they left behind. A Victoria Cross is awarded, as well as a bevy of other decorations. Headlines in the British press offer hyperbolic accolades. The Daily Mail blares “RAF STRIKES MIGHTY BLOW,” while The Illustrated London News declares the raid a “TRIUMPH.” Air Chief Marshal Harris later personally congratulates Barnes Wallis, offering support for any other ideas the engineer might have.

If Sorpe was the third dam breached, in conjunction with Möhne, the flood is so devastating that historians will assess the raid to have been a strategic turning point in the war.

outcome

2

3-5

6-9

10-11

12

none survive;

that number survive, and sit the rest of the war out in PoW camps;

less than a dozen flyers manage to bail out or scramble away from downed bombers, only to be captured by the Germans; most sit the war out in PoW camps, but several die of disease or malnutrition, especially after being forced to march to new camps as the Allies push into German territory in early 1945;

same as above, except one escapee manages to flee to Switzerland or to the underground;

get away? -- roll another die: if EVEN, he manages to get back to Britain before the end of the war; he endures a long and belated debriefing, and is awarded the Conspicuous Gallantry Medal (CGM); if ODD, he reaches Britain after VE Day.

nearly a dozen airmen survive, but are soon captured; many die in interrogation, but nearly half survive the war;

escape? -- roll a die: that number escape from their PoW camp; roll another die: if EVEN they are killed evading recapture; if ODD they are returned to camp to wait the end of the war;

To determine the fate of the crews lost over enemy territory,roll two dice:

Same as b (above), except Harris can’t bear to shake theengineer’s hand.

applies to outcomes on this page

Ai cr w te

Scenario 9

31


g

h

i

k

j

Air Vice-Marshal Cochrane signals this from Grantham: “All ranks in 5 Group join me in congratulating you and all in 617 Squadron on a brilliantly conducted operation.” Air Chief Marshal Harris personally attends several of the debriefings, along with Barnes Wallis, where Harris congratulates the engineer and tells him that his skepticism of the bouncing bomb is no more. Shaking his hand he exclaims, “you can sell me a pink elephant.” In the Ruhr Valley, several powerstations are no longer operational, knocked out by floodwaters. The Möhne in particular gushes a tidal wave damaging roads, buildings, sweeping away bridges and inundating buildings as the water rises more than thirty feet. A 20-ton turbine is washed away and the dam’s torpedo netting is forced through the breach. The water let loose by the Eder rises more slowly as it fills the broader valley, but ultimately it rises higher, just topping 39 feet. Civilians scramble out of the way as best they can, but more than a thousand of them die.

On May 18 the headline of The Daily Mirror reads, “TORRENT RAGES ALONG RUHR.” The mission is a great success, especially considering the risk of flying under-armored low-altitude aircraft over hostile territory. A Victoria Cross is awarded, as well as other decorations, and Prime Minister Winston Churchill is greeted with a standing ovation by the United States Senate when he gives them the news in a speech he delivers in Washington, D.C. on May 19.

The lightness of the casualties and the excited insistence of Barnes Wallis to “finish the job,” encourages Air Chief Marshal Harris to press the attack. He orders a follow-up raid, to be launched as soon as possible, before the Germans install effective counter-measures. This second raid can only take place if: 1) at least 6 undamaged Lancasters returned to Scampton at the end of the scenario, and 2) you have at least 4 Upkeep markers left at the end of the scenario. (If the conditions are satisfied, and you wish to play the follow-up raid, see the instructions on p. 35.)

The raid is a success, but a problem comes to light. Despite the safety precaution of a self-destruct detonator fixed to Upkeep, the RAF soon learns that the Germans managed to get their hands on an intact mine. The Air Ministry fears that a Heinkel-177 or Dornier-217 may be capable of carrying Upkeep, and before the month is out at least one Parliament minister asserts that British and Scottish dams are vulner-able. By the end of June, anti-aircraft guns, searchlight batteries and smoke cannons are installed to defend nearly a dozen dams, manned by the 57 Anti-Aircraft Brigade comprised of 5,000 personnel.

Same as b (but use the Aircrew Fate table on this page), with this amendment:Air Chief Marshal Harris writes the letter, emphasizing the extent of the catastro-phe: 617 Squadron was organized with 5 Group’s best pilots and crews. In one night it is wiped out.

l Same as k (above), with the following amendment:Roll a die: if EVEN, another attack against Eder Dam is ordered. If ODD, the casualties suffered by 617 Squadron are deemed too great by Air Marshal Harris. He is not even convinced the mission was a success. There will be no follow-up raid.

m Air Vice-Marshal Cochrane signaled this from Grantham: “All ranks in 5 Group join me in congratulating you and all in 617 Squadron on a brilliantly conducted operation.” Privately, he is disturbed by the losses suffered by the squadron, and his boss, Air Chief Marshal Harris, states flatly that the mission can scarcely be considered a success. Harris is determined that another Pyrrhic disaster like this one will not be perpetrated on his flyers, and he writes a letter to the Air Ministry requesting that Barnes Wallis no longer receive support for his “experiments.” Meanwhile, the Air Ministry is feeling pressure from a Parlia-ment minister who is convinced that British and Scottish dams are vulnerable to the same kind of bouncing bomb attack. Intelligence soon learns that at least one Upkeep has been recovered intact by the Germans, lending urgency to fears of retali-ation. By the end of June, anti-aircraft guns, searchlight batteries and smoke cannons are installed to defend nearly a dozen dams.

Two dams breached is a marvelous result, yet the casualty list is devastating. Air Chief Marshal Harris is dubious of the mission’s success, given the cost in lives and aircraft, especially considering the vast talent and experience that 617 Squadron represented. The losses are so great that the squadron is decommissioned, its remnants transferred to other units. Barnes Wallis is also disturbed by the losses, so much so that he considers shelving schemes he has for other ordnance.

The casualties suffered by 617 Squadron that night have long-lasting impact. Decades after the war, one surviving pilot will tell a British reporter that, “To this day, I think about the ghastliness of the numbers.” Over the years British tourists will visit the site of the dams, as well as the many places where 617 Squadron’s Lancasters hit the ground. Graves will be marked, and the anniversary observed for decades.

2-3

4-6

7-9

10-11

12

none survive;

that number survive, but are captured by the Gestapo; some die during questioning; with great patience and considerable effort, the Germans learn the technical details of Upkeep;

To determine the fate of the aircrews lost over enemy territory, roll two dice:

several flyers parachute safely or survive crashes, and many are badly injured; captured within days, some die before their transfer to PoW camps, where they sit the war out until liberated by Allied armies;

same as above, except at least one escapee eludes recap-ture; he manages to find the Dutch underground.

several flyers survive and are captured;

escape? -- roll another die: that number escape from their PoW camp; roll two more dice: that is the number of days it takes the Germans to recapture them; half the escapees die attempting to flee;

applies to outcomes on this pageAi crew ate

outcome Scenario 9

32


n

p

q

t

Same as i (above, except use the Aircrew Fate table on this page). And, roll a die: if EVEN, Churchill insists on a follow-up raid targeting Eder Dam [p.35]; if ODD, Harris talks him out of it.

o

Air Chief Marshal Harris is pleased that Upkeep worked, but is skeptical of the operation’s success. The primary objective was accomplished, but Eder Dam remains, and he is informed by Barnes Wallis and Air Ministry staff that a follow-up raid is necessary to make a lasting impact on Germany’s industrial output.

The lightness of the casualties convinces Air Chief Marshal Harris to press the attack as soon as possible, before the Germans install effective counter-measures. He orders a follow up raid against Eder Dam [see instructions, page 35].

Same as p (above), but with this amendment: to determine if a follow-up raid is ordered, roll two dice and subtract the number of Lancasters that did not return to Scampton. If the modified roll is 2 or higher, a follow-up raid is ordered.

r Air Chief Marshal Harris pens a sharp letter to the Air Ministry reiterating his long-standing conviction that “low attacks with heavy bombers” results in nothing but “costly failures.” When pressed by Barnes Wallis and other supporters of Operation Chastise, he admits the technical problem of the mine was solved, but the result was an impractical weapon amounting to military folly.

Meanwhile, the Royal Navy’s high command scratches its plans to attack the battle-ship Tirpitz with a smaller version of the bouncing mine, codenamed Highball, from a squadron of Mosquitoes. The element of surprise has been squandered.

s On the afternoon of May 17, the airfield at Scampton looks deserted. Groundcrews go about their tasks in near silence and there are not enough machines for them to work on. Men stand idle. In the mess hall there are so many empty seats and vacant tables, the wait staff also have little to do, and the atmosphere in the room is morose. Soon the squadron will be disbanded, its personnel reassigned elsewhere, and before long Scampton will be host to airmen and Erks who will have little knowledge of the intense training that led up to the disastrous night of May 16, 1943.

Years later Air Marshal Harris will refer to Barnes Wallis as that man who “threw away men’s lives for a demolitions experiment.”

Although the dam was breached, an inquiry and eventually a court-marshal is appointed to investigate the alleged negligence that led to the destruction of an entire squadron [see p.42 bottom].

u There are two possible outcomes:

a) Sorpe is breached: If you ended the scenario with 4 or more Upkeep markers still attached to bombers, AND at least 6 undamaged bombers returned to Scamp-ton, you may play a follow-up scenario targeting the Möhne Dam. See the instruc-tions for the follow-up raid on page 35.

b) Sorpe not breached: The water gushing out of the two dams are disastrous to the region down-river, but Albert Speer, German Minister for Armaments and Munitions, is soon informed by engineers that the devastation would have been worse had the Sorpe given way in addition to the Möhne. His next few weeks are devoted to repairing the dams before the Autumn rains commence, and bringing production back up to pre-Chastise levels.

Meanwhile, Air Chief Marshal Harris is pressed to order a small follow-up raid against the Möhne Dam. If you ended the scenario with 6 or more Upkeep markers still attached to bombers, AND at least 8 undamaged bombers returned to Scampton, you may play a follow-up scenario targeting the Möhne Dam. See the instructions on page 35 for the follow-up raid.

2-4

5-6

8-9

10-11

12

none survive;

that number survive, but are soon captured; some die during questioning; with great patience and considerable effort, the Germans learn the techni-cal details of Upkeep;

7 same as above, but roll a die: EVEN, one flyer eludes capture and remains in hiding, until he finds the U.S. Army in 1944 (or it finds him); ODD, one flyer eludes capture and remains in hiding for months, when he is finally rooted out of a farmer’s cellar by German soldiers;

To determine the fate of the aircrews lost over enemy territory, roll two dice (roll once for all crews):

several flyers parachute safely or survive crashes, and many are badly injured; all are captured within days, some die before their transfer to PoW camps, where they sit the war out until liberated by Allied armies;

some airmen manage to survive but they are soon captured; some die attempting to escape from their PoW camp; one actually succeeds, even eluding recapture; he manages to find the under-ground; roll another die: if EVEN he makes contact with Allied soldiers in the Summer of 1944; if ODD, he is shot eluding German soldiers.

same as above;



outcome Scenario 9

Same as j (above, except use the Aircrew Fate table on this page). If Sorpe was breached, British intelligence gradually learns that the raid was more devastating than anticipated, due to its floodwaters combined with the Möhne’s. Roll a die: if EVEN, Barnes Wallis is given a green light to develop other ordnance. If ODD, Harris successfully has the engineer barred.

33


v

x

y

w

Two dams breached, but what carnage! The squadron is lost, soon to be dubbed the “doomed squadron” by ambitious histori-ans after the war. Considered unlucky, the number 617 is decommissioned along with the squadron, and the story of Opera-tion Chastise will join the likes of the Charge of the Light Brigade. Not until after the war when downed airmen are liberated from prison camps will the full story of that night come to light.

Since casualties are light, in order to strike before defenses at the dams are improved, 617 Squadron is ordered to make a second attack on the Möhne Dam the following night. Roll a die to determine if the squadron is ready to fly again: if EVEN it is, if ODD, it flies two nights later (subtract 1 from the die roll when you check Möhne’s defenses). In either case, see the instructions for the follow-up raid on page 35.

z

The flood waters inundate roads, mills, a nearby airbase, and sweep away bridges, lightweight buildings, and even a turbine that crashes along with the rest of the torrent. Nearly 40,000 cubic yards of soil swept into the Fulda River will have to be dredged in order to restore its navigability. All this becomes the headache of Albert Speer, Minister for Armaments and Munitions. It is his job to explain to his enraged Fuhrer that as shocking as the damage is, the fact that only this one dam was breached is a blessing. It could have been far worse.

Lord Beaverbrook, former Minister of Aircraft Production and the man who helped initiate the bouncing bomb project, finds it difficult supporting Barnes Wallis despite the success of the mine at Eder. Air Marshal Harris, commander of Bomber Com-mand, is irate, demanding all further “dangerous experiments with low-flying heavy aircraft” be discontinued.

aa

Barnes Wallis is ecstatic that the mine worked, but when the extent of bomber losses becomes known, he is mortified. Roll a die: if EVEN, he is so shaken by the casualty list that he drops all further work on munitions and aircraft for several months, until coaxed back to work by colleagues. If ODD, the Minister of Aircraft Production finds it necessary to block Wallis’ access to the Ministry’s facilities and projects.

It is a long night at Grantham. Air Chief Marshal Harris, Air Vice-Marshal Cochrane, their staff, and Barnes Wallis, endure a confusion of wireless communications from 617 Squadron. By dawn it seems that the primary and secondary targets remain intact, but a tertiary target was breached. Wallis’ device works, but why didn’t it work on the intended targets? The debriefing sessions of May 17 drag on and start again on the 18th.

Roll a die: if EVEN, a follow-up raid against Möhne and Eder is ordered by Harris. Play the follow-up raid only if you ended the scenario with at least 6 undamaged Lancasters and 4 Upkeep markers returning to Scampton. See the instructions on page 35. If ODD, Cochrane and Harris come to believe that 617 Squadron was handled poorly. If Wing Commander Gibson survives the scenario, he is given a long furlough.

bb Same as aa (above), except that a follow-up raid is NOT contemplated (do not roll a die). Instead, Air Vice-Marshal Cochrane commends 617 Squadron for gallantry, and if Wing Commander Gibson survived the scenario, he receives a DSO bar.

cc Air Chief Marshal Harris calls the operation a “slaughter,” and Barnes Wallis is devas-tated by the news of casualties. Despite the success of Upkeep at the breached dam, Wallis retires.

dd

ee

When dawn breaks at Grantham, Air Chief Marshal Harris grumbles “What folly!” He reaches Scampton before noon and congratulates the surviving crews, but he has already given orders to bar Barnes Wallis from all RAF facilities. “That man will not experiment with my men’s lives anymore.”

A court marshal is appointed to inves-tigate. Roll a die:

Regardless of the die roll, the details of what happened over Germany on the night of the dambuster raid don’t emerge until after the war when downed airmen are liberated from PoW camps.

2-5

6

8-9

10-11

12

none survive;

six survive, but are soon captured; some die during questioning; with great patience and considerable effort, the Germans learn the technical details of Upkeep;

7 seven survive and are captured (as above), but one manages to concoct a believable tale about torpedo-armed Lancast-ers; for several weeks a high-ranking German officer is convinced that a team of British comman-dos cut the torpedo nets in the dam’s reservoir on the night of May 16, 1943;

To determine the fate of the aircrews lost over enemy territory, roll two dice:

several flyers parachute safely or survive crashes, and many are badly injured; all are captured within days, some die before their transfer to PoW camps, where they sit the war out until liberated by Allied armies;

same as above, except at least one escapee eludes recapture; he manages to find the underground; in 1945 he makes contact with Allied soldiers;

1 Wing Commander Gibson is posthumously (and conveniently) found negligent;

Air Vice-Marshal Cochrane, A.O.C. 5 Group, becomes a scapegoat; he had only been on the job since February, but in June he is transferred to Delhi;

2

3

Air Chief Marshal Harris finds himself defending his lukewarm support of Upkeep;4no action is taken.5-6

Barnes Wallis and his ambitious device are found to be ill-advised; the scandal is debated in a closed session of Parliament; Lord Beaverbrook resigns from the Cabinet and Wallis becomes a pariah;

same as above;



outcome Scenario 9

34


If the outcome indicates that a follow-up raid is ordered, play the scenario again, but with the following changes:

LANCASTERSOnly use undamaged Lancasters that returned to Scamp-ton. You may repair two damaged bombers before play begins and you may add one new Lancaster to those avail-able. Remove all hazard attachments from Lancasters and crews before play begins (e.g., Faulty Merlin or Map Error).

UPKEEP, AIRCREWS, ELITE CREWMENYou get two more Upkeep markers and one new Elite Crewman marker to attach to Lancasters, in addition to the markers that returned to Scampton at the end of the scenario (elite crewmen that used their “once only” benefits may use them again in the follow-up raid). Randomly draw the new markers. You may detach and re-attach Upkeep, aircrew, and Elite Crewmen markers as necessary, before play begins. For example, detach an Upkeep marker from a damaged bomber to attach it to an undamaged bomber.

WAVESOrganize aircraft and attachments in any manner you prefer.

ALERT LEVELReset the Alert Level to 1, unless damage was inflicted on three or more dams, in which case roll a die: if EVEN, reset it to 1, if ODD, reset it to 2.

DAM DEFENSESThe Germans are now protecting the dams. The first time the dam is acquired, roll a die to determine the improve-ments:

RECON LEVELThe Recon Levels of all dams remain the same, except for those where Lancasters entered the Circling Near Box -- increase the Recon Level by 1.

DAM DAMAGE and ACTIVITY LEVELSIf you damaged the dam, it remains damaged. Remove Upkeep markers that did not damage dams, and reset Activity Levels to zero.

TARGETSThe Primary Target is Möhne. If already breached, it is Eder, unless already breached, in which case it is any dam (your choice).

OUTCOMEUse Scenario 9’s Debriefing Chart (again), but consider the initial raid and its follow-up to be a single raid.

For example, if a dam was breached in the initial raid and another was breached in the follow-up, read the outcome by applying both breached dams. Thus, if Eder was breached in the first raid and Möhne was breached in the second, the potential outcomes would be f through j.

To determine the number of Lancasters that returned to base, use this “formula”:

For example, if three bombers failed to RTB at the conclusion of the initial raid and another six did not return from the follow-up raid, ten aircraft are considered to have returned to base. Continuing the above example, the outcome would be g.

1 Flak Level 2,Balloons Level 2;


3 Flak Level 1,Balloons Level 1;Night�ghter Nearby;

new defense levels

otherEder

4 Searchlights Level 1,Balloons Level 1;

5 Balloons Level 1.

6 no change.

1 die

1 Flak Level 3,Searchlights Level 2, Balloons Level 2;


3 Flak Level 2;

new defense levels



6 Balloons Level 1.

1 die

Möhne

1 Flak Level 4,Searchlights Level 1, Balloons Level 2;



new defense levels


5-6 Flak Level 2,Night�ghter Nearby;

1 die

Scenario 9

How many Lancasters did not RTB? (subtract)

Total Lancasters

Lancasters that returned to base

19

35


mission planning blotter

SEASONEDtraining

levelmarker

VETERANtraining

levelmarker

Nw

ma ker

VETERANai crew

levelmarker

VETERANair rew

levelma ker

VETERANa rcrew

levelmarker

GREENtraining

levelmarker

WALL SWALL Sonuonu

DannbombsightbombsightDann

VHFyes

155

place training level markers in the zero space of each training

track

Set the security risk level marker aside (technically, it starts on the zero space, but you won’t need it until Flight Prep); you won’t know what the starting Alert Level is until you perform the Security Risk Check [11.4.2], so set that marker aside too:

set-aside

training levels

This scenario presents the problem of organizing 617 Squadron and training its crews to attack the dams. It uses the entire rules set [1.0 - 13.0], as well as the entire mapsheet including the full Mission Planning Blotter.

The game starts with Planning Turn 1: The curtain rises in April when the new A.O.C. of 5 Group informs you that a new squadron is being formed for a very special mission, and you are hereby appointed its wing commander.

Congratulations and best of luck!

Scenario 10: The Campaign Game

ALERT

RPRequest

ExtraTraining

security

risk le

vel

RP RP x10

TURNplanning

you start with 60 RP

you will use this here [10.3.3]

you will use these here [10.4]

you will use these here [10.2]

36


�ight map and dam record tracksset-aside

place a water level marker on the “rising” space of each dam’s record track

to be brought into play during the Requisition Phase [10.1]

put in cups for laterto be drawn randomly during flight or attack turns

when you requisition Upkeep, draw randomly from a cup and do not peek at the back

when you bring elite crew-men into play, draw randomly from a cup

add these to the cup of elite crewmen

randomly draw a recon marker (don’t peek at the back) and place on the zero space of each dam record track, and on each hostile flight zone’s recon track

recon & water level markers

6812

dam’s damagecapacity

2 3 41

LISTER DAM

dam

ge

no d

amag

e

MOHNE DAM 8 rv

4 rv

6812

0 2 3 41

DIEMEL DAM

dam

age

no d

amag

e

4 rv

6812 i n f

0 3 41

EDER DAM

dam

age

no d

amag

e

9 rv

101215 u

0 2 3 41

SORPE DAM

dam

age

no d

amag

e

5 rv (+1 if Mohne breached)

91114 u

3 41

BEVER DAM

dam

age

no d

amag

e3 rv

6812

0 3 41

HENNE DAM

dam

age

no d

amag

e

2 rv

6812

0 3 41

ENNEPE DAM

dam

age

no d

amag

e

3 rv

6812

0 3 41dam

age

no d

amag

e

Wes

er

altitude chits

speed chits

oach

mph

1 chit

approach

239mph

2 chits

approach53f1 chi

approach

65ft2 chits



in another cup

put hazard chits into their respective cups (3 cups, one for each color)

waterlevel

waterlevel

waterlevel

waterlevel

waterlevel

waterlevel

waterlevel

waterlevel

waterlevel

RECON

RECON

RECON

RECON

RECON

RECONRECON

RECON

RECON

RECON

JINX SPYignore

fatigue

armorer

1055

sortie

Handle

Erk

6

Groundcrew

1

gun

igo da

P

use

i

Greenaircrew

1

Veteranaircrew

3

Seasonedaircrew

2

Upkeep

Up1

Upkeep15

1

f

map

error

37


debrie�ng: 5 Group

Debriefing happens as a five-step process. Each of the first three steps has its own Debriefing Chart and outcomes, and will award you VP. In Step 4 total the VP awarded in Steps 1-3 to determine the political outcome. In Step 5, determine if there will be a follow-up raid. Instructions for the follow-up raid follows Step 5.

Was 5 Group affected adversely by the raid? To evaluate the impact of 617 Squadron’s casualties on 5 Group, add the requisition points of all destroyed aircrew (that is, of all aircrew that did not return to base at the end of the game). Include aircrew destroyed during training (crashed). Then, add the number of Elite Crewmen markers attached to Lancasters that did not return to base. The sum is the “crew loss”. The immediate effect on 5 Group is indicated in the chart. Also, note the victory points awarded to you. If the result reads “no follow-up raid,” then regardless of the Step 5 outcome, no follow-up raid is permitted (not by 5 Group anyway).

scenario 10

step 1

crew lossOutcome: e�ect on 5 Group VP

315 or less

req. points + elite crewmen lost

Personnel losses are acceptable. The effectiveness of 5 Group remains high.

acceptable

116-24 Personnel losses are acceptable. The Group’s effectiveness remains good, but replacements are necessary.

moderate

025-30 The raid sacrificed too many men, and quite possibly too many experienced aircrews. Without immediate replace-ments, 5 Group’s effectiveness has dropped.

heavy

-131-35 Personnel losses were so extreme that 5 Group’s effective-ness has been compromised. Immediate replacements are necessary to restore aircrew numbers and quality.

severe

-336 or more

(no follow-up raid)

(no follow-up raid)

617 Squadron was manned by the best aircrews in 5 Group, and a single raid has decimated its ranks. The squadron will be decommissioned and 5 Group will require personnel transferred from other groups in Bomber Command to maintain its effectiveness.

Henceforth, the number “617” will be bad luck to supersti-tious airmen.

catastrophic

38


debrie�ng: Bomber CommandTo determine Bomber Command’s evaluation of the raid, add the rv (reservoir value) of each breached dam [3.5.1]. Then, subtract the number of Lancasters that did not return to Scampton. Do NOT include those that crashed during training. Use the difference to determine the Bomber Command outcome, and the VP scored.

scenario 10

step 2

rv - Lancasters destroyed Outcome: Bomber Command VP

815 or more Air Chief Marshal Harris pledges to enthusiastically support any and all ideas proposed by Barnes Wallis and his staff.

brilliant success

512-14 Upkeep works and low altitude precision night bombing is proven to be a devastating weapon.

mission success

38-11 Upkeep works and low altitude precision night bombing is proved feasible.


25-7 Upkeep works, it is an engineer’s success, but given the time and assets devoted to training a squadron to carry out this unique mission, was it worth the investment?

mission complete

12-4 Upkeep works, but the results of the mission do not justify the time and resources devoted to it.

mission failed or incomplete

0-1 to 1After weeks of preparation the raid was finally launched. Now, this experiment dispensed with, Bomber Command can return to delivering hurt to Germany’s war industry using methods it knows to work.

failed experiment

-1-2 or less Missions sometimes fail, but given the time and assets invested in this unusual mission, this failure is galling.

embarrassing failure

39


debrie�ng: Ministry of Aircraft ProductionTo determine the Ministry of Aircraft Production’s assessment of the raid, refer to the row in this chart corre-sponding to the number of dams breached. Note the number of VP scored.

scenario 10

step 3

dams breached Outcome: Ministry of Aircraft Production VP

105 or more

A strategic turning point in the war. If the rv of breached dams totals 25 or more, award yourself another 5 VP -- you have hastened the war to a swifter conclusion.

At least one pilot, and at least one bomb-aimer, are awarded the Victoria Cross.

brilliant success

94Barnes Wallis is honored by the Prime Minister, and is invited to Buckingham Palace for decoration. His engineered mine is celebrated as the weapon that will break the back of German war industry. Wallis is encouraged to develop other weapons, and is now enthusiastically supported with facilities, funding, and staff.

mission success

73

Upkeep is proven to be a weapon of strategic value, lethal to Germany’s industrial output. The Prime Minister encourages Stafford Cripps, the new head of the Ministry of Aircraft Production, to find more applications for this most unusual ordnance.

If the rv of breached dams add to 10 or more, award yourself one more VP.


5(+1?)

(+1?)

(+5?)

2 Upkeep works, and a severe blow was delivered to the enemy. If the rv of breached dams totals 10 or more, award yourself one more VP.

success

21 Upkeep works, but not enough harm was done to Germany’s indus-trial infrastructure; its industrial capacity was not significantly harmed. And here’s the rub: the enemy is now alerted to Bomber Command’s new weapon and tactic.

squandered opportunity

1

-1

0

AlertLevel 0:

AlertLevel 1+:

This was a disappointing result, but hopefully no harm was done. If the opportunity presents itself, the experiment may be started anew, assuming the Germans have not been tipped off as to the aim of Operation Chastise and the secret weapon codenamed Upkeep.

The VP awarded is dependent on the Alert Level at the end of the game:

experiment

40


debrie�ng: the political outcome Total the VP scored in steps 1-3, and look up the corresponding outcome.

scenario 10step 4

total VPsteps 1-3 Outcome

18 or more The raid demonstrated the vulnerability of Germany’s industrial capacity. Dams were breached, thousands of civilians killed, agricultural land ruined, electrical power-stations obliterated, and bridges and roads washed away or crippled. A stunning victory!

strategic turning point

13-17 The success exceeded Bomber Command’s expectations, and the Prime Minister is certainly pleased. The raid helps persuade the Americans that night bombing is a viable strategy against German war industries, and the Soviets are assuaged by the results.

decisive victory

11-12The raid was a success in every measure. Barnes Wallis is vindicated, and encouraged to develop other weapons. Bomber Command is given a mandate to aggressively pursue the engineer’s ideas, and develop the tactics to deliver such ordnance where it can do the most harm.

major victory

9-10

The Germans were surprised, none more than Adolf Hitler who is furious at the Luftwaffe for allowing such a transgression in the Ruhr. He orders the diversion of resources to protect the dams, siphoning assets and personnel from other theatres. But his Armaments Minister, Albert Speer, emphasizes to the Fuhrer that the damage could have been far worse.

marginal victory

6-8 The raid was successful, but not everything went as well as it should. Damage was inflicted on Germany’s war industry, but was it enough? And did it warrant the investment in time, resources, and engineering that went into Operation Chastise? And now the surprise is gone.

encouraging but �awed result

4-5 The Prime Minister is not pleased. Too many resources were diverted for this project to net such a meager result.

inconclusive

3 Operation Chastise will be rendered a footnote in the war’s annals, a failed and largely inconsequen-tial mission. Will there be a Court of Inquiry? Roll two dice: if the sum of numbers rolled is a 2, perform a Court of Inquiry Check [next page].

frustrated

2 Will there be a court of inquiry? Roll a die: if the number rolled is a 1, perform a Court of Inquiry Check [next page].

mission failed

1 Will there be a Court of Inquiry? Roll a die: if the number rolled is ODD, perform a Court of Inquiry Check [next page]; if EVEN, news of the raid is suppressed by order of the Prime Minister.

catastrophe

0 or less Who will take the blame? Perform a Court of Inquiry Check [next page]. court marshal

41


follow-up raid?

court of inquiry

LANCASTERSTo determine the Lancasters available, count all returned undamaged aircraft, plus those that were requisitioned but did not fly (and are undamaged). Additionally, if you choose to launch the follow-up raid 48 hours after the initial raid, you automatically repair 1 damaged Lancaster per Groundcrew marker.

UPKEEPTo determine the Upkeep available, count all Upkeep markers that returned to Scampton, plus those that were requisitioned but never attached during Flight Prep. Also, if you choose to launch the follow-up raid 48 hours after the initial raid, you receive 2 new Upkeep markers (draw randomly). If 24 hours later, you only receive 1 new Upkeep marker.

ATTACHMENTSRemove all Hazard attachments (put back in cups). You get one new Elite Crewman marker to attach to Lancasters, in addition to the markers that returned to Scampton at the end of the scenario and those that were requisitioned but never attached. You may detach and re-attach Upkeep, Aircrew, and Elite Crewmen markers as necessary, before play begins. For example, detach an Upkeep marker from a damaged bomber to attach it to an undamaged bomber.

FLIGHT PREPPerform only Step 5 of Flight Prep (Sortie). Organize aircraft and attachments in any manner you prefer. Assign targets as you see fit.

ALERT LEVELNote the Alert Level at the conclusion of the last Clean-Up Phase of the initial raid, then reset it to 1 when you start the follow-up raid.

DAM DAMAGE & DEFENSESDo not perform Recon and do not check for Surprise. Instead, the first time a dam is acquired, roll 2 dice to determine the levels added to that dam’s defenses:

DAM CLEAN UPWhen a Lancaster arrives at an unbreached dam, remove all of that dam’s Upkeep markers that were released in the initial raid but failed to damage the dam. If you launched the follow-up raid 24 hours after the initial raid, damage remains unchanged. If you launch 48 hours later, roll a die: if EVEN, damage remains unchanged, if ODD, remove the lowest value damage marker unless the die roll is a 5 in which case remove the highest value damage marker.

NIGHTFIGHTERS NEARBYWhen a dam is acquired, place a Nightfighter Nearby marker on its Target Map.

OUTCOMEDo not determine the outcome of the follow-up raid separately. Instead, recalculate the outcomes of the original raid by adding any new data garnered from the follow-up raid.

Unless the outcome of step 1 specifically bars a follow-up raid, you may be eligible to play another raid targeting one or more dams. This second raid takes place 24 or 48 hours after the launching of the first raid. The Planning Turn remains the same (and thus the moon condition remains unchanged).

A follow-up raid is possible if 10 or more Lancasters are available at Scampton, and you have at least 6 Upkeep available.

If the outcome in step 4 included the conven-ing of a Court of Inquiry, roll two dice and add the numbers together. Add to that sum the number of breached dams to find the result:

scenario 10step 5

10+ proceedings are mired in political squabbling (no outcome)

result2 dice

Barnes Wallis is barred from all RAF facilities

the squadron commander is transferred to a training unit

Air Vice-Marshal Cochrane is transferred to Madras

Air Chief Marshal Harris is sacked9

7-8

6

2-5

dice roll improvement (dam defense levels)

2 or less

3-45

+2 Flak, +2 Searchlights, +1 Balloons+2 Flak, +1 Searchlights, +1 Balloons

6 +1 all categories

7 +1 Flak, +1 Balloons

8+ +1 Balloons

+3 Flak, +2 Searchlights, +2 Balloons

Modifiers: From the sum of numbers rolled, subtract the Alert Level at the conclusion of the initial raid. Also, subtract 1 if you launched the raid 48 hours after the initial raid. And, if the rv of at least one breached dam is 5 or more, subtract 1.

Place Balloons in the Close Zone; if already in the Close Zone, add 1 marker to the Climb Box.

42


Game 2two-player competitive – long

multi-player games

Game 1two-player competitive – short

This is identical to Game 1 except each player has more Lancasters and the game includes the flight to the dams. They will each have a unique Primary Target but will share the Secondary Target, so it will be a race to see who can breach the first dam and then get to the second one first.

Enemy Coast Ahead: The Dambuster Raid may be played with two or three players. There are a variety of ways this may be accomplished. The five games here offer cooperative or competitive play. Unless noted otherwise, all rules remain in effect.

begin on Turn 1; play simultaneously, concluding at the end of Attack Turn 8 (but if a player breaches his dam, no longer has Upkeep to release, or scatters, then his Lancasters automatically RTB at the end of the turn -- he is free of Nightfighter Checks); do not perform RTB checks or Morning Recon.

Möhne and Eder Target Maps (ignore the Michelskopf Box); use the “other dam” category when resolving Approach Vector Checks;

each player gets a Veteran, two Seasoned and one Green;

veteran 5, seasoned 3, green 2;

2 each -- each player randomly selects 5 Elite Crewmen markers, one at a time; each chooses two to keep; do not draw the Jinx, Armorer or Spy (set them aside);

each player gets a 1/2, 2/3, 3/4, 4/5 Upkeep marker; mix them and randomly attach to Lancasters (don’t peek);

Flak Level 2, Recon Level 4, Water Level full, Clear visibility, no-Moon period;

1

4 (each player), start Circling Near

Each player controls 4 Lancasters and attacks a dam on their own. Play Attack Turns and Phases simultaneously using two Target Maps. Roll dice against each other as needed (for example, if Player A has to make a Flak Check, Player B rolls the dice and selects the kept dice). If you and your opponent each have a copy of the game, use your own set of Approach & Release chits, otherwise split them into two sets [see p. 46 of this book]. Players may only attack their own

Primary Target (for Ennepe, use the Eder Target Map but ignore the Michelskopf Box).

No Target of Last Resort (skip the Wire-less Phase)

Map

Alert Level

Lancasters

Aircrew

Training Levels

Elite Crewmen

Upkeep

Dams

Game Duration

split the approach & release chits into two sets (see p. 46); only Green aircrew may use the Dummy Run/Approach Observed marker;

chits

award points to each player at the end of the game (see the table on p.44).

winning

each player gets 20 Requisition points; spend them to select crews and Elite Crewmen (Elite Crewmen cost 1 RP each, but you draw them randomly (draw 3, return 2), no Jinx, Armorer or Spy); take turns requisitioning two counters at a time;

veteran 5, seasoned 3, green 2;

each player gets the same distribution of 8 markers each: two 1/2, two 2/3, two 3/4, one 4/5, and one 5/6; attach randomly (don’t peek);

1

8 each, but distribute evenly (e.g., Player A gets AJ-A, AJ-C, AJ-E, etc., and Player B gets AJ-B, AJ-D, AJ-F, etc.); a player may use less than 8 Lancasters if desired;

Alert Level

Flak Level 2, Recon Level 4, Water Level full, Clear visibility, no-Moon period;

Dams

Recon Level 2Flight Zones

split the approach & release chits into two sets (see p. 46); only Green aircrew may use the Dummy Run/Approach Observed marker;

chits

award points to each player at the end of the game (see the table on p.44).

winning

start on Flight Turn 1, all aircraft in England Flight Zone; aircraft must be in waves (3 waves max. per player); game ends when all RTB;

Game Duration

Lancasters

Aircrew

Training Levels

Upkeep

PrimaryTargets

Player A = Möhne; Player B = Ennepe

Secondary Eder (both players)

43


Game 3two-player cooperative

Game 4three-player cooperative

Game 5three-player cooperative/competitive

Play Scenario 9v but add an extra Lancaster and an extra Green aircrew, Upkeep marker and Elite Crewman marker (randomly drawn). Evenly divide the 20 Lancast-ers into two groups, and put each group in the control of a player. Players must agree upon an organization and distribution of attachments, organizing the squadron into waves (6 total), assigning targets to aircraft.

This is a cooperative game, so although players maintain control of their Lancasters they work together to achieve a positive result. Share approach and release chits, or divide into two sets (if you divide them, see p. 46). At the conclusion of the game they share a single outcome, determined by using the Debriefing Chart in the Scenario Book [p.30].

Same as Game 3 except use only 18 Lancasters and divide them equally amongst the three players.

Play Scenario 10, but players assume the roles of Over-all Commander and Flight Commanders.

Overall Commander:One player assumes the role of the Overall Commander (wing commander at Scampton and Air Vice-Marshal Cochrane of 5 Group at Grantham). He will take all actions during the Planning Turns and the Flight Prep Sequence until Step 5, Sortie. He is also the only player who may take actions during the Wireless and Place Hazards Phases of the Flight Turn.

Flight Commanders:The other two players do nothing until Step 5 of Flight Prep. Kibitzing is encouraged.Thereafter, they are in control of their Lancasters and may organize them as they see fit.

Sortie:During Step 5 of Flight Prep, the Overall Commander evenly divides Lancasters, Aircrew, Elite Crewmen, and Upkeep into two groups. He gives each Flight Com-mander a group. He must also assign each Flight Com-mander one Primary Target, and designate the squadron’s Target of Last Resort. Flight Commanders may assign their own Secondary Targets.

Drawing and Placing Hazards:For the purpose of drawing and placing Hazard markers, treat each player separately and perform the action one player at a time (take turns as first player). That is, each player’s waves and independent aircraft trigger their own set of Hazard markers during the Place Hazards Phase, while ignoring his opponent’s Lancasters. Also, during the Place Hazards Phase, players draw and assign Hazard mark-ers for their opponent.

Example: Let’s say the Alert Level is 2. Player A has a wave in the Weser Flight Zone and Player B has two independent aircraft in that zone as well. Player A will draw and assign Hazard markers on Player B’s Lancasters, and then Player B will draw and place markers on Player A’s wave. So, Player A adds up the number of Hazard markers he’s supposed to draw: two independent aircraft plus 2 for the Alert Level, plus 2 for the zone; he draws 6 Hazard markers and assigns 3 to each of Player B’s Lancasters. Then, Player B returns the favor, but draws only 5 Hazard markers (2 for the Weser zone, 2 for the Alert Level, and 1 for the wave), placing them all on Player A’s wave.

Evading and Resolving Hazards:Each player benefits from the Recon Level (i.e., each may evade two hazards). Players assume control over the Hazard markers assigned to their waves and independent aircraft during the Evade Hazards and Resolve Hazards Phases. Each player decides which Hazards may be evaded, and will assign Hazard markers to Lancasters within a wave.

Attacking Eder Dam:Players may each have Lancasters on the Target Map at the same time. Use alphabetical order if both players want their Lancaster to enter the Approach during the same Run Phase. For example, AJ-A has precedence over AJ-B. Player B is permitted a one-time override -- he may “go first” once, regardless of alphabetical order.

RTB & Morning Recon:The game ends when all Lancasters are in the RTB Box or are destroyed; finish the game by resolving RTB [E1] and Morning Recon [E3].

Breach 8

each Upkeep 1your opponent’s

Lancaster:

if not breached:if release was SUCCESS

each breached dam

damaged 1

destroyed

player with Set B (chits) wins if players tie

2 + 1 if veteran+ 1 if elite crewman

points awarded

winning (Games 1 & 2)

(designer’s favorite)

44


Outcome:It is possible for one or more players to “win” this game, but only one of the winners can be declared the victor. Winning is good, but being the victor gets you a promo-tion and a publicity tour in North America.

After the raid, Wing Commander Guy Gibson was awarded the Victoria Cross. He was given leave and sent to North America on a publicity tour, and then ordered to write an account of his service in the RAF during the war, geared for the public who clamored to know more about air operations and the men in the RAF. That book was titled “Enemy Coast Ahead.” In game terms, Gibson was the “victor.”

Overall Commander: The Overall Commander wins if the Scenario 10 outcome on the Debriefing Chart (Step 4) is at least a “Marginal Victory”. The Overall Commander earns a commendation if the outcome is a Decisive Victory or higher.

Flight Commanders: To determine if a Flight Commander wins, add the rv of all dams his Lancasters breached, and subtract from that sum the number of aircraft under his command that sortied but did not return to Scampton. If the result is 1 or more, he wins. If both Flight Commanders win, the one whose result is higher wins the Victoria Cross. If a tie, they both earn DFCs (Distinguished Flying Crosses).

Who Gets Credit for Breaching a Dam?It is possible that Lancasters belonging to both players may damage the same dam, but if such a dam is breached, only one player earns credit for the breach. The player whose Lancaster released the last Upkeep marker against the dam and thus forced the breach receives the credit. Upkeep that widens the breach [7.9.6] does not count.

For example, let’s say Player A successfully detonated a mine against Lister Dam, inflicting 5 points of damage. But then Player B’s Lancaster releases Upkeep and inflicts 2 points of damage, breaching the dam. Player B is credited with the breach.

Who is the Victor? Only a player who wins can be the victor. If only one player wins, he is the victor. If two players win, the one who earns the Victoria Cross is the victor, or if neither earned it, the Overall Commander is the victor.

If all three players win, declaring the victor is a little more complicated:

If the Overall Commander earns a commendation, he is the victor. If he did not earn a commendation, then the Flight Commander who earned the Victoria Cross is the victor. If all three players win but neither Flight Com-mander won the VC and the Overall Commander did not earn a commendation, the Overall Commander is the victor.

If there are no winning players, all three lose.

Evenly Divided? Each of the two groups must have an equal number of Lancasters (and attachments). Set extras aside. Also, the aircrew types must be evenly divided so that if the Requisition value of each group’s aircrews were added together they would equal the other group’s sum. Elite Crewmen markers must be evenly divided as well. You may vary from this rule of equality only if all three players consent.

The Overall Commander must also make sure that Lancasters are evenly distributed in terms of their I.D. (e.g., Flight Commander A should get AJ-A, AJ-C, AJ-E, etc., and Flight Commander B should get AJ-B, AJ-D, AJ-F, etc.). This will be important if and when both Flight Com-manders strive to attack the same dam simultaneously (see below, “Target Map”).

Primary Targets? Each Flight Commander must be assigned a unique Primary Target during Sortie. The rv of these targets may be different, they do not have to be equal. During the Wireless Phase of a Flight Turn, only the Over-all Commander may attempt to change the Primary Target of a wave or aircraft.

Secondary Targets? During Sortie, a Flight Commander is free to assign his Lancasters one or more Secondary Targets. Flight Commanders may share the same Second-ary Targets. During the Wireless Phase, however, Second-ary Targets may not be assigned by any player.

For example, Player A may assign Sorpe Dam as a wave’s Secondary Target, and Player B may do the same.

A Flight Commander may want to assign his aircraft Secondary Targets in the hopes of increasing the rv total of his group’s breached dams. This may come in handy when it comes time to see who’s the victor.

The Jinx? If the Jinx is in play, the Overall Commander decides which Lancaster it is attached to. When it must transfer to another Lancaster [13.1], the Overall Com-mander must attach it to a Lancaster belonging to the other player. Thereafter, when it transfers, it must transfer from one Flight Commander’s Lancaster to the other (if possible), and each time the Overall Commander is the player who decides which Lancaster is saddled with it.

Hazards and the Flight Map:The Overall Commander draws and places Hazard mark-ers during the Resolve Hazards Phase, and only he may remove Hazard markers as a result of Recon during the Evade Hazards Phase. All other decisions regarding Hazard markers are made by Flight Commanders.

Target Map:Players may each have Lancasters on the same Target Map at the same time. Use alphabetical order if both players want their Lancaster to enter the Approach during the same Run Phase. For example, AJ-A has precedence over AJ-B. Flight Commander B is allowed a one-time override -- he may “go first” once, regardless of alphabetical order.

45


+1

release

228mph

+1

release

70ft +4

release

60ft+2

release

67ft

+2

release

223mph

+0release

erraticM

+3

release

218mph

M

+4

release

220mph

+3

release

64ft+1

release

52ftM +2

release

56ftM

+1

release

213mph

M

+2

release

216mph

M+0release

erraticM

Dividing the Approach and Release ChitsSeveral multiplayer games necessitate dividing the chits into two sets. When divided, each player uses only their own Set. Also, you may place the Dummy Run/Approach Observed marker only on Green aircrew. If you have two copies of Enemy Coast Ahead each player may use a complete set of chits (that is, 14 chits instead of 7), and the restriction on the Dummy Run/Approach Observed marker is lifted.

Project Kickoff: Mark Aasted deserves credit for initiating this project in February 2011, since it was he who suggested it to begin with and was rather insistent that the dambuster raid could be gamed. I’m beginning to think he was right.

Solitaire and the Fog of War: Had this been a traditional two-player game, a German player would have done little more than roll dice. Asymmetrical situations like this one beg for solitaire treatment; no “idiot rules” are necessary to make a German player ‘not know’ his dams are about to be cracked.

Sources: There is no shortage of secondary works dedicated to this raid, but the key text is Wing Commander Guy Gibson’s account that he wrote in 1944, Enemy Coast Ahead. Except for oral histories of other crewmen, most committed to paper years after the war, just about every scholar who tackled this subject drew the lion’s share of their information from that account. This design was based largely but not exclusively on it, supplemented by two books: John Sweetman, The Official Dambusters Experience, and James Holland, Dam Busters. There were others, but these were the most useful.

Mood: Historical simulations offer a unique experience some-where between passive reading or watching, and re-enacting; solitaire games especially so. Rules and graphic treatment are here intended not only to model the historical situation and provide clarity, but to evoke the intangibles of the historical event. The Jinx rule is an extreme example. The designer strove to remain faithful to the mood, or tone, of Gibson’s account.

Scale: A designer arbitrarily draws a frame around his subject, cutting away everything else. Ultimately his choice of scale, more than any other design element, establishes the param-eters of a game’s decision tree. Focusing on a single squadron as the “unit of measure” is unusual, but it affords a number of player-decisions involving the organization of the fighting unit. Starting the game clock weeks before the raid allows the player to explore this organizational problem more deeply, and neces-sitates interesting features rarely treated in military simulation games. Groundcrew and specialty flight training are two of the

more interesting features.

Bouncing Bomb: How to render the engineering precision of Upkeep in a game? Dramatically, one hopes, and not too quickly, lest the action at the dams feel anticlimactic. The Approach and Release Sequence models ten seconds of histori-cal time, yet the game zooms in and imposes slow-motion, allowing the player to watch the event unfold while making crucial decisions.

Outcomes: Typically in solitaire games, the player’s interest is expected to drop once he wins, which is why so many design-ers strive for a high difficulty level. The approach here was quite different. Historically, the raid was successful but it could have been more successful. “Winning” is contingent and subjec-tive. Given the planning involved and the resources mustered for it, and given the results, a definitive “you win” or “you lose” result, or the usual degrees of “decisive,” “major” and “marginal” victory, seemed unsatisfying measures. The intent here is to contextualize the event by providing a narrative, or at least the suggestion of one. The Debriefing Charts suggest that narra-tive. Some outcomes stretch the historical record, yet they are historically derived. In mid-May 1943, for example, Winston Churchill was in Washington, and he did announce the dambuster raid in a speech at the Capitol (and American lawmakers did indeed respond with a standing ovation). The game, therefore, is not just about solving the puzzle, it’s a vehicle for immersion in a historical subject, an attempt to convey context and consequence in an engaging way. Above all, the outcomes are intended to convey the sense that, regardless of the results of your raid, the war labors on.

CreditsGame Design & Artwork: Jeremy White;Producers: Gene Billingsley, Tony Curtis, Andy Lewis, Rodger MacGowan, Mark Simonitch;Alpha Playtest and Counsel: Mark Aasted, Steve Carey, Chris Janiec, Andy Lewis, Terry Nichols, Tim Porter, Martin Scott;Beta Playtest: Mark Aasted, Mark Barker, Tim Collier, Colin Sykes, Jeremy White;Proofreading: Swati Chattopadhyay, Hans Korting, and the incomparable Ian Wakeham.

vertical stripedenotes SET A

In Games 1 & 2 the player using Set B gets a handicap:He wins if the point score is tied.

SET A SET B

Design Notes

46


617 Squadron Log

AJ-TTommy

Lancaster Primary Target notes

special orders/notes

Lancaster Primary Target notes

Squadron’s Target of Last Resort

AJ-GGeorge

AJ-MMother

AJ-PPopsie

AJ-AApple

AJ-JJohnny

AJ-LLeather

AJ-ZZebra

AJ-NNuts

AJ-KKing

AJ-CCharlie

AJ-DDavid

AJ-SSugar

AJ-OOrange

AJ-FFreddie

AJ-WWillie

AJ-XX-ray

AJ-HHarry

BakerAJ-B

EasyAJ-E

YorkAJ-Y

QueenieAJ-Q

RogerAJ-R

Use this sheet if you prefer to keep track of your Lancast-ers with pencil and paper [1.8].


617 Squadron LogVersion Two [1.8]. Use this sheet if you prefer to keep track of your Lancasters with pencil and paper. This version of the log is more detailed than version 1.

v

sg

AJ-TTommy

Aircrew Bomber Status Target Aircrew Bomber Status Target

special orders/notes

Squadron’s Target of Last Resort

AJ-GGeorge

AJ-MMother

AJ-PPopsie

AJ-AApple

AJ-JJohnny

AJ-LLeather

AJ-ZZebra

AJ-NNuts

AJ-KKing

AJ-CCharlie

AJ-DDavid

AJ-SSugar

AJ-OOrange

AJ-FFreddie

AJ-WWillie

AJ-XX-ray

AJ-HHarry

BakerAJ-B

EasyAJ-E

YorkAJ-Y

QueenieAJ-Q

RogerAJ-R

damaged

Upkeep released

primarysecondary

v

sg

v

sg

damaged

Upkeep released

primarysecondary

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

v

sg

damaged

Upkeep released

primarysecondary

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

v

sg

damaged

Upkeep released

primarysecondary

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

v

sg

damaged

Upkeep released

primarysecondary

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary

v

sg

v

sg

damaged

Upkeep released

primarysecondary

damaged

Upkeep released

primarysecondary

v

sg

v

sg

damaged

Upkeep released

primarysecondary

damaged

Upkeep released

primarysecondary

v

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damaged

Upkeep released

primarysecondary

v

sg

damaged

Upkeep released

primarysecondary


wave

wave

wave

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wave

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wave

Documents

Enemy Coast Ahead Dambuster Raid - Amazon S3...Scenario 10 is the complete game, the “Campaign Game,” incorporating Part 3 of the rules. It abstractly treats the planning It abstractly