777
HANDBOOKS SHIP CALCULATIONS CONSTRUCTION and OPERATION CHARLES H.HUGHES

Handbook of Ship Calculations, Construction and Operation

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special
types
of
construction,
such
as
tankers,
battle
cruisers,
submarine
chasers,
10
Given
Speed
224
Formula
for
Estimating
Speed
of
a
Motor
Boat
224
370
457
Keel
or
=
by
1.2.
Metric
System
system
from
th
pole
to
the
equator
units
o
capacity
(liter)
Measurement
1
centimeter
1
gram
1
second
Unit
of
space
or
distance
an
old
barrels.
Material
Held
Sugar
the
index
figure
2
as
v
indicates
that
the
square
as the
circle to its diameter

even
numbered
Frustum of
the
lateral
surface.
Fig.
6.
ordinates
a
ship
below
acts
per square
inch of
when
its
length.
Tensile
strength
compression.
Thus
let
M
load
is
not
symmetrically
placed,
the
reactions
steel
pipes
under
the
same
internal
pressure
should
increase
directly
can be
hooks
from
wrought
Rivets
Thickness
of
plate
in
ins.
Diameter
of
rivet
and
Steel
Forgings
Steel
Forging
and
nickel
is
Chromium-Vanadium
Steel.
Structural
Steel.
tons
or floor."
be
readily
(generally
hematite
ore)
is
packed
 
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less
by
salt
water,
by
pressed
by
the
pressure
in
pounds
necessary
to
the
same
species
are
10,
11,
12,
13,
14,
15
7»>
/2j
a
covering
for
the
shell
plating
hard substances
below
the
awning
or
shelter
deck.
In
vessels
in
which
the
stem
forms
a
cutwater
length
is
measured
from
the
point
where
the
upper-deck
beam
line
would
intersect
just
lines. On
the
after
part
of
the
rudder-post
obtained.
This
assumes
75
of the
of
the
volume
of
the
displace-
yachts
Line.
as
the
draft
for
coastwise
passenger
and
freight
steamers.
of
buoyancy,
multiply
the
multiples
with arms
are
apart
or
2
ft.,
and
divide
by
buoyancy
origin,
the
angle
the
position
of
than
10
ins.
and
have
a
righting
arm
of
at
least
conditions
but
2
righting
G
M
is not
abnormally great,
the above
inch
plane
about
a
transverse
axis
of
Gravity
by
be
continued
below
its
the center
of
weights
on
as
of
adding
a
weight
in
a
known
position.
To
calculation,
it
may
be
necessary
to
proceed
With
the
vessel
4
ft.
by
the
stern,
the
horizontal
travel
the
distance
x
between
w
parallel
to
the
water
line,
for
getting
the
upper
plumb
port
on
top
of
1
and
the
deviation
registered
depth
and
tonnage
are
upper
decks,
the
freeboard
should
depth
and
coefficient
.78,
the
winter
freeboard
given
for
a
be
made
the
mean
sheer
provided
for
a
topgallant
bulkhead,
and
vided
by
4
1H
Freeboard
of
vessel
without
erections
and
this and
be less
than the
at the
2. Correct
suffice.
In
assigning
freeboards
measured at
estimating
the
from
Curve
A,
Plate
4,
provided
that
the
effective
length
to be
reckoned as
computed
by
adding
obtained.
Table
3
Allowable
reduction
the
wave
forming,
it
has
been
found
impossible
as
34
lb.
launching
ways.
Launching
Calculations.*
the
various
values
found
the
standing
ways.
Also
find
the
moment
of
buoyancy
ways
at
the
different
shifts.
the shore
the
deck,
the
lashings
being
torn
away
as
the
vessel
continues
to
move,
thus
gradually
bringing
her
the
figure
denotes
utilized
for
carrying
For
ships
which
have
on
these
where
there
are
no
tonnage
openings
is
the
ship.
lo-
cated
in
the
'tween-decks
closely
adjacent
been
has a
ship
Nevada,
one
at least
United
States
Navy
the
Padueah,
turbines
(Parsons)
driving
The hull
part
complete,
strong,
pressure-resisting
internal
hull,
which
when
cedar 4
Fig. 39,
following Lloyd's
spective
deck
provided
the
deck
height
favor
required
even
if
the
plating
is
worked
in
to
joggle
seaway.
Joggled
midship
depth
apart,
and
the
top
finished
bilge.
See
Fig.
39.
The
breadth
of
the
bracket
at
the
ship's
side
and
its
rivet
attach-
ment
to
the
frame
angle
must
ship.
If
the
ship
plate
with
angles
length
of
the
vessel;
they
towards
brick
or
cement
not
less
clay tiling
ship's
be
spaced
or
tiers
of
beams,
in
order
that
the
stanchions
develop
free
from
a
number
of
small
pillars.
An
example
of
a
girder
and
pillar
frames,
and
when
the
rivets,
and
connected
by
or
over,
built.
Watertight
transverse
bulk-
watertightness
is
to
be
tested
considerable,
which
may
be
obtained
by
either
limiting
the
draft
or
increasing
the
depth.
In
some
cases
the
bulkheads
are
carried
to
strakes,
or
a
combination
by
single
or
double
angles
as
called
for
by
the
rules,
abaft
the
bulkhead
frames,
or
they
may
the
vessel
by
brackets,
fitted
at
each
side
stringer
and
hold
stringer.
The
thickness
of
the
plating
varies,
the
when
possible
and
in
addition
the
angles
on
each
side
of
ins. to
5 ft.
the
stern
post
there
may
placed
other there
stock
is
given
in
the
British
Corporation
rules
(see
also
Lloyd's,
Amer-
ican
width
is
is
large.
For
ocean-going
vessels
the
area
Area
of
Lateral
Plane*
Type
The
U.
S.
Steamboat-Inspection
Rules
on
the
saddles.
on the
upper
side
of
body,
and
(American
Bitu-
mastic
Enamels
Co.,
New
York)
straight
piece
laying
of
wooden
decks,
installing
the
ceiling
and
cargo
on
passenger
steam-
ers
makes
a
good
appearance.
The
sloping
roof
is
fitted
over
engine
rooms
and
may
be
built
of
steel
plates
and
angles
Steamboat-Inspection
Rules
in
shadow.
New
wood,
particularly
on
outside
work,
as
deck
houses,
hatches,
spars,
etc.,
should
about
600
sq.
spar
of
paint
or
varnish
put
on.
"Cork
paint
shall
be
applied
to
interior
surface
bulkheads
in
quarters
and
passages,
the
color
to
all,
weights,
and
by
a
wave,
leaving
the
middle
portion
unsupported.
This
is
a
found
the
moment
p
M
of
inertia,
by
applying
the
formula
neutral
axis
is
taken,
and
often
tV
the
full
area
curve
of
loads
from
rectangular
one,
and
although
uo
nomid
ar3uia
W
iH
jnoj 'jspuqAa-xis
(N<NC^COeOCO^-^iOON.OO
over 65
in
the
oil
com-
partments.
The
pump
room
is
often
amidships
even
on
'tween-deck be
Some
of
"
from
the
deck.
Valves
or
cocks
similarly
above,
or
below
the
boilers,
special
insulation
to be dealt with
line
Or,
instead,
a
system
of
copper
pipes
with
air
entering
the
ventilator
forces
upward
the
heavy
tank.
Bypass
arrange-
other and
24
r.
p.
m.,
18
ft.
diameter,
buckets
the United
$96
Ferguson,
Naval
Constructor,
U.
S.
N.
average
barrel
good
over
1-inch
a
pound
of
pine,
assuming
heavy
to
be
Used
for
Atomizing
that
is
for
light
bearings
and
high
velocities.
The
the
upflow
or
steam
forming
a
center
and
side
drums
(see
Fig.
56),
the
tubes
being
curved
nected to the
efficient as
per
hour,
the
feed
water
entering
the
boiler
8,350
lb.
per
hour,
temperature
of
over
the
pipe.
In
no
case
should
the
discharge
terminate
is
shown
by
a
vertical
worth
noting.
The
capacity
of
an
injector
should
be
about
30%
in
and the
other with
gauges.
U.
S.
Steamboat-
Inspection
Rules
state:
admitted
into
any
The
rate
of
firing
tendency
to
become
per
working
height,
but
tubes with a
to the
by
of
the
U
tube
dirt
can
get
on
the
bearings.
Below is an abstract
the
high-pressure
port
double-ported
valve
is
often
selected
when
it
is
desired
1%
and
expansion,
for
if
up,
and
the
range
of
expansion
disks to
collars,
shows the steam
the
closing
of
opens,
thus
forming
a
loop
as
in
Fig.
1.
This
may
be
much
torsional
stress
as
bending
stress,
reversing cylinder
.185 to
.2 the
cylinders
is
necessary
other
than
the
swabbing
of
side of the
connecting
aft,
and
was
loaded
with
4,660
tons.
Boiler
pressure
208
when looked at when
swept by
+
blades
are
objectionable
on
£
£
£ £ £
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OOOHtOOMWINniONOMlNNiCININNNO^inOOCCOINOiOOiOiOKJNOlNOCNM
 
press
a
range
of
pitch
ratios
from
Propeller upon
the collars
a three-
blade of
°©o©
°©©o
diameter,
and
ii
feathering,
one-fourth
of
this,
compound pres-
type
is
the
Parsons
(see
Fig.
74)
in
vanes,
the
reaction
from
which
higher
than
recip-
rocating
engines.
cargo
vessel
driven
by
geared
turbines.
See
also
table
of
Turbine
Ships.
Mean
revs,
Hand holes.
discharge
capacity
in
pounds
or
gallons
per
hour.
Under
ordinary
conditions
9
ft.
Discharge
of
Horse Power
close to
starting,
that the
the end
of which
bears on
a shaft
Care
should
be
taken
in
grind-
ing
that
none
going
over
the
ignition
sys-
tem.
Part
Trouble
oil on
the con-
combustion
chamber.
If
the
revolutions.
piston.
The
an effi-
on the
10°
depending
provided
for
circulating
hot
water
through
the
engine
jackets.
Engines
which
have
failed
space
5
seconds,
on
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(
from
134
pressure
amount of
usually
wire
transmit
20
amperes
volts,
giving
18,730.5,
and
dividing
this
by
the
distance
9G3.5
ft.,
the
quotient
lamps
are
arranged
system.
"Twin
generator
for mechanical reasons
output
which
is
40%
in
conductors,
each
having
a
carrying
board to a
used. For incandescent
long,
may
be
made
by
branches
effective
range
one
maker
(Carlisle
For
quickly
changing
from
a
dispersed
to
a
closed
beam
of
light
there
to a
should first
required
to
produce
the
voltage
wanted
are
connection.
running
there
air outside
atmos-
phere.
For
example,
12
ft.
by
8
barbettes,
crew's
lavatory
100
Main
deck
the
auxil-
iary
steam
This
trap
Captain's
cabin,
1
square
radiators.
Types
of
Radiation
When
calcu-
lated
radiators, viz.,
an exhaust
valve. The
enough
steam
has
been
 
various
com-
partments,
exhaust
extending
above
the
upper
uncomfortable
engine
room
with
air,
fan.
These
friction of
frames and
danger
liquid
to
a
gas,
or in
apparatus
quired
in
Carbonic
anhydride
evap-
orates
at
between
the
engine
non-return
towards
floor,
and
hand
pump
at
the
bilges.
"Holds
without
2
or
3
steam
pump
suctions
and
to
any
one
compartment
are
bilge pumps.
The double
should
pressure.
discharge
due
to
drawing
off
a
large
full
capacity
of
the
pumps
and
by
means
of
a
single
50-foot
length
of
hose
from
at
least
into
passengers*
or
crew's
quarters."
Sulphur
steering
one
the
other,
and
24
are
required
on
some
vessels
and
rudder
has
to
by
capstan;
that
is,
the
windlass
is
above
is
the
capstan
driven
from
the
Windlasses
Engines
friction
type
(as
built
by
controlled,
while
lowering
its
load,
by
of the
in
two
rigid
connections
as
permits
the
rapid
shortening
or
length-
ening
of the elastic
strands
composing
a
rope.
A
rope
is
right
moved.
H
Side
sister
hook
single
block
I
Regular
shackle
L
Loose
rigidity
of tackles where one
standing
block
P
Pull
link
to
a
tackle,
multiply
the
Ordinary
Ordinary
Safe
Load
General
Use
the
corresponding
strain
and
drums
Deck in
carried
only
in
seamless
steel,
welded
steel,
or
copper
tanks
securely
and
firmly
"Lifeboats and Rafts
inspection.
This
paragraph
shall
not
apply
plugs
provided,
to
required
shall
be
pro-
vided
under
regulations
pne
or
class
two,
75%
of
th^
bersons
on
board.
The
number
and
type
of
line of
at least
15 fathoms
vessels of
of
persons
a
boat
is
to
carry,
divide
the
result
by
10
for
ocean
18,
of
sufficient
strength
has
been
resting.
The
of
vessel
Ship.
masts,
Many
cargo
steamers
have at
deep
the
that
should
be
filled
with
water
treated as
well
coined.
"In
the
ground
tier
each
barrel
athwartships
without
tier
of
boards,
as
it
only
requires
sufficient
protection
to
prevent
any
vice
remaining
on
the
cargo
platform
from
staining
the
cases,
which
would
injure
their
commercial
value
at
the
port
of
destination.
Any
excess
of
ballast
should
 
of
two
(2)
inch
yellow
pine,
be
boarded
sailing
between
the
way
feeders
and
the
least two
between
the
two
upper
decks
exceeds
60%
of
the
capacity
of
said
deck,
properly
and one-half
"c. The
mixed, satisfactory
strake
and
extending
prescribed
by
the
inspectors.
"Refined
petroleum,
the
lifeboats;
Provided
further,
that
the
drying
after
repairs
bearing
is
running
demand the
account
of
owners
shall be at
charterer
may
be
clearly
defined
and
questions
obviated.
5.
Trading
may
within
certain
mat-
ters
of
insurance
steamship,
the
machinery,
boilers,
coal,
and
engine
stores
if
owned
by
the
insured.
Freight
the
minimum
period.
and
Indemnity
Clause
(P.
and
I.)
gives
the
insured
additional
deliver
the
goods
alongside
steamer
on
lighter
in
the
port
of
shipment
120,
523