DROP ANCHOR THROUGH THE HORIZON

DROP ANCHOR THROUGH THE HORIZON

DENISSEA MARINE – www.denissea.com / [email protected] / +90 531 649 6159

EAGLE CLAW®

mailto:[email protected]

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EAGLE CLAW®

Unique design with the combination of engineering and the experience will let you sail to the heart of the nature.

● EAGLE CLAW® is not an ordinary

anchor as known as the others.

● EAGLE CLAW® has been developed

together with experienced sailors

cruising in the Mediterranean and the

Aegean Sea, one of the most

challenging weather conditions in the

world.

● EAGLE CLAW® provides its users to

save time and money by providing

opportunity to drop the anchor even

at desolate places and at harsh

weather conditions.


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I - FEATURES:

1- Thanks to the unique design, EAGLE CLAW® sinks by following the path away from the yachts.

Figure - 1

One of the most common situations while anchoring is to wait for the anchor to reach to the bottom of

the sea in front of the yacht. Until that time the sailor needs to keep the yacht steady against the natural

conditions such as heavy wind, stream and waves.

● EAGLE CLAW® sinks to the bottom faster and does not require moving the yacht on rear direction.

2- Unique design shovels on the claw provides EAGLE CLAW® to stab the ground immediately.

Regular anchors have limited contact surfaces to take right position to stab the ground. This situation

makes the sailor to move the yacht on any direction to make sure the anchor cling on anywhere.

Figure – 2

● EAGLE CLAW® does not require any assistive movement for getting ready to stab. When EAGLE

CLAW® reaches to the bottom of the sea, it will stab the ground where it dropped.

3- Do not waste your time to search for a right anchor suitable to the ground. Let your EAGLE CLAW®

to stab any type of ground.

Figure – 3


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There are mainly three types of grounds in the sea: seaweed, rock, and sand/mud. Every type of ground

has different mechanical properties. Due to that reason, sailors say that “success in anchoring is directly

related to your chance”.

● With your EAGLE CLAW®, you do not need any chance or good wish. Just adjust the unique

mechanism of your EAGLE CLAW®, and let it keep your yacht stable till whenever you would like

to leave.

Figure – 4

4- EAGLE CLAW® can be dismantled and moved or stored at any place.

Figure – 5

Since the yachts have limited interior living area, the anchors cannot be stored at such places. Also if there

is a problem with the anchor, it may not be carried on the trunk next to your luggage.

● Despite that regular anchors, EAGLE CLAW® can be dismantled and stored inside yachts, or can be

carried on the trunk of private cars.

5- Depending on the users’ requirements, EAGLE CLAW® can be produced from different types of

materials with the same mechanical performance and quality.


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Figure – 6

Regular anchors are made off either stainless steel or galvanized steel. However, most of the time

users cannot prefer the material that the manufacturers use.

● EAGLE CLAW® provides its users flexibility to choose material depending on their own economic,

appeal to the eye, or performance criteria. The possible stainless steel materials are; AISI 304, AISI

316, AISI 316L, and galvanized steel materials are S355JR, S355J2. All material certificates will be

delivered to the customers within the product package.

6- Like other DENISSEA® products, every individual EAGLE CLAW® has unique identity number for

traceability purpose.

Table – 1 Identity Number Description

WEIGHT MATERIAL COMODITY PRODUCT SERIAL (YEAR-NO)

EXAMPLE 16 SS316 CM (COMMERCIAL MARINE) EC (EAGLE CLAW) 18-XXXXX

16-SS316-CM-EC-18-00001

Most of the regular anchors in the market do not have any identity number. If the user has a problem with

the anchor and there is no supplier warranty, either the anchor needs to be changed, or make it repaired

by the user since the producers will consider that anchor is used, and the faulty is due to the misuse.

● EAGLE CLAW® is user friendly. If there is something wrong with the product, user can issue a claim.

After downloading the claim form from www.denissea.com webpage, it should be filled by

describing the problem and stating the identity number of the product, then the form should be

sent to [email protected] address. After evaluations will be concluded, customer will be

informed about the possible solutions. In order to make exchange or repairing the product,

depending on the customer’s needs, the product should be sent to DENISSEA by post-paid

shipping. Inside of Turkey, the product will be delivered to the customer within 5 business days

(for outside of Turkey, the lead time may vary 20-30 business days at most. Please get contact with

your supplier or directly to DENISSEA about the actual lead-time).


http://www.denissea.com/


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II – ENGINEERING:

EAGLE CLAW® has a well-balanced design that, after releasing from the windlass, it tends to lift the front

side up, and creates a curve far away from the drop point while falling through the deep.

Each individual EAGLE CLAW® has the same drop curve, since the position of center of gravity and specific

dimensions of each sub-parts. In other words, the following diagram will be applicable for all of the EAGLE

CLAW® products having different weights (the below curve is applicable for “Rocky Ground Setting” and

may vary in different drop positions and/or different tilt settings of the mechanism of product).

Figure – 7

A “16 kg” EAGLE CLAW® can withstand more than 1020 kg of load in average (Table – 2 and Figure – 8).

For example, 50 ft. sail yachts are weighing approximately 10 tons, and generally use 10mm diameter AISI

316L stainless steel chains for anchoring. The rupture point of such chains is limited to 100kN, which is

equal to approximately 1020 kg. This means, instead of a 20-25kg regular anchor (which is suggested for

50 ft. sail yachts) a “16 kg” EAGLE CLAW® can be used for 50 ft. sail yachts with 10mm diameter chains,

but we suggest our users to choose the right anchor for their safety by checking “EAGLE CLAW® Selection

Table” (Table 3).


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Table 2 – Applied Loads: 10,000 N (approx.1,020 KgF) through Y-axis and Z-axis for 16 kg EAGLE CLAW®

Figure – 8 Translational Displacement Vector and Von Misses Stress Analyses


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III – EAGLE CLAW® SELECTION:

Selection of right EAGLE CLAW® for your yacht is crucial due to safety factors. EAGLE CLAW® Selection can

be performed by using the following table, depending on type, length and weight of the yacht.

Table – 3 EAGLE CLAW® Selection Table

WEIGHT

(KG) WEIGHT

(LBS) WEIGHT (TONS)

LENGTH (M)

LENGTH (FT)

WEIGHT (TONS)

LENGTH (M)

LENGTH (FT)

WEIGHT (TONS)

LENGTH (M)

LENGTH (FT)

5 11,02 0,5-1 3-5 10-17 0,5-2 3-7,5 10-25 0,5-1,5 4,4-6,3 15-21

8 17,64 1-2 5-7 17-23 2-3 7,5-9 25-30 1,5-3 6,3-8 21-26

12 26,46 2-4 7-9 23-30 3-4 9-10 30-33 3-3,8 8-9 26-30

16 35,27 4-6,5 9-11 30-35 4-7 10-12 33-40 3,8-5 9-10 30-33

18 39,68 6,5-15 11-14 35-44 7-16 12-16 40-53 5-7 10-11 33-36

20 44,09 15-22 14-17 44-55 16-23 16-17,5 53-58 7-7,5 11-11,5 36-38

25 55,12 22-32 17-19 55-60 23-33 17,5-19,5 58-64 7,5-10 11,5-12,5 38-41

30 66,14 32-40 19-20 60-65 33-41 19,5-20,5 64-67 10-14 12,5-13,5 41-44

40 88,18 40-55 20-22 65-70 41-56 20,5-22 67-72 14-20 13,5-15,5 44-51

50 110,23 55-65 22-23 70-75 56-66 22-23,5 72-77 20-27 15,5-17 51-56

60 132,28 65-85 23-25 75-80 66-86 23,5-25 77-82 27-35 17-19 56-62

100 220,46 85-170 25-31 80-100 86-175 25-30 82-99 35-65 19-24 62-79

Not for only EAGLE CLAW®, but also other regular anchors, selection should be made by considering the

net weight of yacht in addition to the length.

Net weight varies for different brands of yachts and directly changes with the additional hull loads, and

the number of crew on the deck. For example, if the gross weight of a 35 ft. sail yacht is written as 6,5 tons

in the license documentation and if the hull will not be filled by heavy goods, then 16 kg EAGLE CLAW® will

show optimum performance. However, if the same sail yacht will be filled by heavy goods, equipment and

there are extra crew on the deck, the decision should be given for 18 kg EAGLE CLAW®.

NOTE: For safety purposes, selection of neither regular anchors nor other DENISSEA® products should not

be performed by the values given in the “EAGLE CLAW® Selection Table”. If there will be any doubt during

the selection of EAGLE CLAW®, please contact us.


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DROP ANCHOR THROUGH THE HORIZON