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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 1 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
Stern A-Frame and Foundation
R/V SIKULIAQ
Maximum Capability Document Manufactured by: Allied Systems
Co.
Reference Drawing Number: # 76033
Prepared By: Allied Systems Co. Igor V. Kormishkin 11/11/2015
(rev.C)
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 2 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
1. Abbreviations
DLT Design Line Tension MCD Maximum Capability Document MPT
Maximum Permissible Tension NBL Nominal Breaking Load NSF National
Science Foundation UNOLS University-National Oceanographic
Laboratory System
2. Purpose
This document sets the Maximum Permissible Tension (MPT) for the
stern A-Frame installed onboard the vessel R/V Sikuliaq in
accordance with the UNOLS Research Vessel Safety Standards (RVSS),
Appendix B.
The tension member employed in the system is considered a
component of the entire handling system and shall be used in
accordance with Appendix A. The normal breaking load (NBL) of the
tension member shall be less than the MPT with exceptions as
outlined in RVSS Appendix B, Section B.4.
Associated MCDs for this component are:
Port Flag Bock Starboard Flag Block Underdeck Winches Additional
wet gear rigging to be added as necessary
2.1. Deployment Types
This stern frame will potentially be used for the following
types of deployments:
Towing – Surface Y
Towing – Mid-Water Y
Towing – Deep Water Y
Station Keeping – Surface Y
Station Keeping – Mid-Water Y
Station Keeping – Deep Water Y
See Reference 3.2.3, Section B.3.5 for descriptions of
operations
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 3 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
3. General
3.1. Description and Limitations
This document is developed for the captain and crew of the R/V
Sikuliaq to provide guidance on the acceptable loading conditions
for the stern A-Frame. Due to the complex nature of oceangoing
research and the highly variable loading conditions that may be
encountered, a number of assumptions were made in order to develop
this general purpose tool:
1. The maximum permissible tensions (MPT) are valid with the
A-Frame resting in either of its two aft stop positions. Caution is
advised for luffing operations near the limit of the padeye MPTs,
as line tension held by winches located on the aft Main Deck can
result in A-Frame overloading.
2. The geometry angles are defined per Section 4. All
calculations were performed assuming zero initial heel and list.
Any initial heel and list needs to be accounted for when monitoring
the loaded cable angle into the water.
3. Vessel stability was not evaluated for any load cases; it is
incumbent upon the captain and crew to insure that adequate
stability exists in all loading conditions to conduct operations
safely using the following permissible tensions.
4. The calculations were performed assuming relative motions and
accelerations as defined below. It is incumbent on the ship’s
captain to determine whether operations should continue based on
ship’s motions in a seaway.
5. Two primary load cases are analyzed: station keeping and
towing.
a. Station keeping load cases assume that the vertical or side
angles into the water may be up to 30 degrees from the vertical.
These assumptions account for the combined effects of ship and
overboard package relative motions.
b. Towing load cases assume a vertical angle of 45 degrees and
side angles of 30 degrees to port or starboard.
6. Since the A-Frame capabilities are inextricably linked to its
structural condition, the Owner of the vessel is responsible for
maintaining the A-Frame to the manufacturer’s specification.
7. The A-Frame’s hydraulic cylinders are the only mechanisms for
resisting reaction vector forward components. Extra care is
required when operating with cable leads forward of vertical
because of this resultant forward vector. Should hydraulics fail
during operations of this type, the A-Frame will rotate forward
outboard till it hits the hard stops.
8. Maximum permissible tensions are calculated assuming that
there is only a single load on the A-Frame at one time and the
cable lead from the winch does not cross the vessel centerline.
Portable winch load cases are symmetric about the centerline
although only one side is shown.
9. The portable deck winches are assumed to have a levelwind
lead 11" above the aft Main Deck. This is conservative for stern
A-Frame loading and the assigned load case MPT is applicable to
levelwind leads higher off the deck for that winch position.
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 4 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
10. For intermediate deck winch positions, reference the load
case winch position further aft of the position in question for the
applicable MPT.
11. For all heavy operations such as towing or coring where the
cable tension will approach the MPT of the Stern A-Frame, the
A-Frame must be positioned at one of the two
outboard stop positions. Primary supported by the cylinders and
a Secondary by bearing against the structural hard stop.
3.2. Reference Documents
3.2.1. 46 CFR§189.35 “Wet Weight Handling Gear.”
3.2.2. UNOLS Research Vessel Safety Standards (RVSS), Appendix
A: “Rope and Cable Safe Working Load Standards,” University
National Oceanographic Laboratory System (UNOLS), March 2009.
3.2.3. UNOLS Research Vessel Safety Standards (RVSS), Appendix
B: “Overboard Handling
Systems Design Standards Criteria for the Design and Operations
of Overboard Handling Systems,” University National Oceanographic
Laboratory System (UNOLS), March 2009.
3.2.4. R/V Sikuliaq A-Frame Replacement Concept, The Glosten
Associates, Inc., Drawing No.
185-SK-01, March 2014.
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 5 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
4. Summary Capabilities and Index
Maximum capabilities meet the following requirements:
Table 1 Maximum Permissible Line Tensions When A-Frame in
Primary Outboard Position
All Load Cases
Port Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Port Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Forward of Fr. 94 with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Forward of Fr. 94 with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Aft of Fr. 94 with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Aft of Fr. 94 with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Worst Case Load with two leads to Wing pad eyes (P and S)
N/A N/A
See Figure 57, Figure 58, and Figure 59 in Section 5.1 of this
document for Angle, A-Frame Padeye, and Outboard Position
definitions respectively.
A-Frame Secondary Outboard Position capabilities are listed in
Table 2.
For load case details, please refer to Table 3 to find the
specific load case page.
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 6 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
Table 2 Maximum Permissible Line Tensions When A-Frame in
Secondary Outboard Position
All Load Cases
Port Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Port Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Forward of Fr. 94 with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Forward of Fr. 94 with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Aft of Fr. 94 with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Deck Winch Aft of Fr. 94 with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Worst Case Load with two leads to Wing pad eyes (P and S)
N/A N/A
A-Frame speed rate for all positions ___
________________________________________ 1.5-2 deg/sec Approximate
time to deploy from Inboard/Outboard and back (Primary)
_________________ 37-50 sec Approximate time to deploy from
Inboard/Outboard and back (Secondary) _______________ 71-96 sec
DLT=120,000 lbs (Breaking strength of the wire rope for cross
beam) DLTw=20,000 lbs ( Breaking strength of the wire rope for
wings) MPT – Maximum line tension that results in the Safe Working
Load of a component (UNOLS RVSS B.2.12).
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 7 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
Table 3 Index to Load Case Details
A-F
ram
e in
PRIM
AR
Y O
utbo
ard
Posit
ion
Port Flag Block with Station Keeping Load
Page 8 Page 10 Page 12
Port Flag Block with Towing Load
Page 9 Page 11 Page 13
Starboard Flag Block with Station Keeping Load
Page 14
Page 16
Page 18
Page 20
Starboard Flag Block with Towing Load
Page 15
Page 17
Page 19
Page 21
Deck Winch forward of Fr. 94 with Station Keeping Load
Page 22
Page 24
Page 26
Deck Winch forward of Fr. 94 with Towing Load
Page 23
Page 25
Page 27
Deck Winch aft of Fr. 94 with Station Keeping Load
Page 28
Page 30
Page 32
Page 34
Deck Winch aft of Fr. 94 with Towing Load
Page 29
Page 31
Page 33
Page 35
A-F
ram
e in
SEC
ON
DA
RY
Out
boar
d Po
sitio
n Port Flag Block with Station Keeping Load
Page 36
Page 38
Page 40
Port Flag Block with Towing Load
Page 37
Page 39
Page 41
Starboard Flag Block with Station Keeping Load
Page 42
Page 44
Page 46
Page 48
Starboard Flag Block with Towing Load
Page 43
Page 45
Page 47
Page 49
Deck Winch forward of Fr. 94 with Station Keeping Load
Page 50
Page 52
Page 54
Deck Winch forward of Fr. 94 with Towing Load
Page 51
Page 53
Page 55
Deck Winch aft of Fr. 94 with Station Keeping Load
Page 56
Page 58
Page 60
Page 62
Deck Winch aft of Fr. 94 with Towing Load
Page 57
Page 59
Page 61
Page 63
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 8 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Port Flag Block, Station
Keeping on Centerline (CL) Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 SF to Yield Hydraulic capacity
30,000 lbf|
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 98° CL Padeye Wrap
Angle (W) 66° - 116° Port Flag Block
Figure 1
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 9 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Port Flag Block, Towing on
CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity |
30,000 lbf |
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 98° CL Padeye Wrap Angle (W) 50° - 95°
Port Flag Block
Figure 2
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 10 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Port Flag Block, Station
Keeping on CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 94° CP Padeye Wrap
Angle (W) 66° - 116° Port Flag Block
Figure 3
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 11 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Port Flag Block, Towing on
CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 94° CP Padeye Wrap Angle (W) 50° - 95°
Port Flag Block
Figure 4
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 12 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Port Flag Block, Station
Keeping on LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 87° LP Padeye Wrap
Angle (W) 57° - 101° Port Flag Block
Figure 5
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 13 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Port Flag Block, Towing on
LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 87° LP Padeye Wrap Angle (W) 42° - 87°
Port Flag Block
Figure 6
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 14 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Station Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 86° CL Padeye Wrap
Angle (W) 64° - 114° Starboard Flag Block
Figure 7
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 15 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Towing on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 86° CL Padeye Wrap Angle (W) 49° - 94°
Starboard Flag Block
Figure 8
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 16 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Station Keeping on CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 89° CS Padeye Wrap
Angle (W) 64° - 114° Starboard Flag Block
Figure 9
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 17 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Towing on CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity 30,000
lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 89°
Towing Lead-in Angle (A) 60° - 120° CS Padeye Wrap Angle (W) 49° -
94° Starboard Flag Block
Figure 10
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 18 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Station Keeping on FS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 94° FS Padeye Wrap
Angle (W) 67° - 114° Starboard Flag Block
Figure 11
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 19 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Towing on FS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 94° FS Padeye Wrap Angle (W) 59° - 97°
Starboard Flag Block
Figure 12
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 20 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Station Keeping on (LS) Padeye.
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 95° LS Padeye Wrap
Angle (W) 58° - 101° Starboard Flag Block
Figure 13
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 21 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Starboard Flag Block,
Towing on LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 95° LS Padeye Wrap Angle (W) 43° - 88°
Starboard Flag Block
Figure 14
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 22 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Forward of
Frame 94 Station Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 90° - 106° CL
Padeye Wrap Angle (W) 81° - 131° Portable Winch Forward of Frame
94
Figure 15
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 23 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Forward of
Frame 94, Towing on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 90° - 106° CL Padeye Wrap Angle (W) 66° -
111° Potable Winch Forward of Frame 94
Figure 16
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 24 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Forward of
Frame 94, Station Keeping on CP/CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 85° - 102° CP/CS
Padeye Wrap Angle (W) 81° - 131° Potable Winch Forward of Frame
94
Figure 17
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 25 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Forward of
Frame 94, Towing on CP/CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 85° - 102° CP/CS Padeye Wrap Angle (W) 66°
- 111° Portable Winch Forward of Frame 94
Figure 18
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 26 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Forward of
Frame 94, Station Keeping on LP/LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 75° - 93° LP/LS
Padeye Wrap Angle (W) 74° - 117° Portable Winch Forward of Frame
94
Figure 19
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 27 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Forward of
Frame 94, Towing on LP/LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 75° - 93° LP/LS Padeye Wrap Angle (W) 59°
- 104° Portable Winch Forward of Frame 94
Figure 20
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 28 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94 Station Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 64° - 90° CL Padeye
Wrap Angle (W) 92° - 142° Portable Winch Aft of Frame 94
Figure 21
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 29 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Towing on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 64° - 90° CL Padeye Wrap Angle (W) 77° -
122° Portable Winch Aft of Frame 94
Figure 22
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 30 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Station Keeping on CS/CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 71°- 98° CS/CP
Padeye Wrap Angle (W) 92° - 142° Portable Winch Aft of Frame 94
Figure 23
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R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 31 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Towing on CS/CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
30,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 71°- 98° CS/CP Padeye Wrap Angle (W) 77° -
122° Portable Winch Aft of Frame 94
Figure 24
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 32 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Station Keeping on (FS) Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 86°- 111° FS/FP
Padeye Wrap Angle (W) 98° - 145° Portable Winch Aft of Frame 94
Figure 25
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 33 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Towing on (FS) Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 86°- 111° FS/FP Padeye Wrap Angle (W) 83°
- 128° Portable Winch Aft of Frame 94
Figure 26
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 34 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Station Keeping on LS/LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 86°- 115° LS/LP
Padeye Wrap Angle (W) 83° - 126° Portable Winch Aft of Frame 94
Figure 27
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 35 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Primary Outboard Position, Portable Winch Aft of
Frame 94, Towing on LS/LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 86°- 115° LS/LP Padeye Wrap Angle (W) 113°
- 68° Portable Winch Aft of Frame 94
Figure 28
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 36 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Port Flag Block Station
Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 97° CL Padeye Wrap
Angle (W) 46° - 106° Port Flag Block
Figure 29
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 37 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Port Flag Block, Towing
on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 97° CL Padeye Wrap Angle (W) 31° - 76°
Port Flag Block
Figure 30
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 38 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Port Flag Block, Station
Keeping on CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 94° CP Padeye Wrap
Angle (W) 46° - 106° Port Flag Block
Figure 31
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 39 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Port Flag Block, Towing
on CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 94° CP Padeye Wrap Angle (W) 31° - 76°
Port Flag Block
Figure 32
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 40 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Port Flag Block, Station
Keeping on LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 87° LP Padeye Wrap
Angle (W) 48° - 108° Port Flag Block
Figure 33
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 41 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Port Flag Block, Towing
on LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 87° LP Padeye Wrap Angle (W) 33° - 78°
Port Flag Block
Figure 34
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 42 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block
Station Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 87° CL Padeye Wrap
Angle (W) 50° - 110° Starboard Flag Block
Figure 35
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 43 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Towing on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 87° CL Padeye Wrap Angle (W) 35° - 80°
Starboard Flag Block
Figure 36
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 44 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Station Keeping on CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 89° CS Padeye Wrap
Angle (W) 50° - 110° Starboard Flag Block
Figure 37
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 45 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Towing on CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 89° CS Padeye Wrap Angle (W) 35° - 80°
Starboard Flag Block
Figure 38
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 46 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Station Keeping on FS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 94° FS Padeye Wrap
Angle (W) 53° - 113° Starboard Flag Block
Figure 39
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 47 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Towing on FS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
19,800 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 94° FS Padeye Wrap Angle (W) 38° - 83°
Starboard Flag Block
Figure 40
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 48 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Station Keeping on LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 94° LS Padeye Wrap
Angle (W) 51° - 111° Starboard Flag Block
Figure 41
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 49 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Starboard Flag Block,
Towing on LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 94° LS Padeye Wrap Angle (W) 36° - 81°
Starboard Flag Block
Figure 42
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 50 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Forward
of Frame 94 Station Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 90°- 102° CL Padeye
Wrap Angle (W) 50° - 110° Portable Winch Forward of Frame 94
Figure 43
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 51 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Forward
of Frame 94, Towing on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 90°- 102° CL Padeye Wrap Angle (W) 35° -
80° Portable Winch Forward of Frame 94
Figure 44
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 52 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Forward
of Frame 94, Station Keeping on CP/CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 89°- 99° CP/CS
Padeye Wrap Angle (W) 50° - 110° Portable Winch Forward of Frame
94
Figure 45
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 53 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Forward
of Frame 94, Towing on CP/CS Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,0000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 89°- 99° CP/CS Padeye Wrap Angle (W) 35° -
80° Portable Winch Forward of Frame 94
Figure 46
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 54 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Forward
of Frame 94, Station Keeping on LP/LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 77°- 92° LP/LS
Padeye Wrap Angle (W) 60° - 120° Portable Winch Forward of Frame
94
Figure 47
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 55 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Forward
of Frame 94, Towing on LP/LS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 77°- 92° LP/LS Padeye Wrap Angle (W) 45° -
90° Portable Winch Forward of Frame 94
Figure 48
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 56 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94 Station Keeping on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 73°- 90° CL Padeye
Wrap Angle (W) 50° - 110° Portable Winch Aft of Frame 94
This position might not be applicable due to interference with
the A-Frame foot base!
Figure 49
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 57 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Towing on CL Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 73°- 90° CL Padeye Wrap Angle (W) 38° -
80° Portable Winch Aft of Frame 94
This position might not be applicable due to interference with
the A-Frame foot base!
Figure 50
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 58 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Station Keeping on CS/CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 78°- 95° CS/CP
Padeye Wrap Angle (W) 50° - 110° Portable Winch Aft of Frame 94
This position might not be applicable due to interference with
the A-Frame foot base!
Figure 51
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 59 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Towing on CS/CP Padeye
Maximum Permissible Tension (MPT) 30,000 lbf
DLT Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 78°- 95° CS/CP Padeye Wrap Angle (W) 35° -
80° Portable Winch Aft of Frame 94
This position might not be applicable due to interference with
the A-Frame foot base!
Figure 52
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 60 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Station Keeping on FS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 88°- 104° FS/FP
Padeye Wrap Angle (W) 60° - 120° Portable Winch Aft of Frame 94
Figure 53
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 61 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Towing on FS Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
16,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 88°- 104° FS/FP Padeye Wrap Angle (W) 49°
- 90° Portable Winch Aft of Frame 94
Figure 54
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 62 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Station Keeping on LS/LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Station Keeping Maximum Vertical
Angle (V) 30° Station Keeping Lead-in Angle (A) 87°- 110° LS/LP
Padeye Wrap Angle (W) 60° - 120° Portable Winch Aft of Frame 94
Figure 55
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 63 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
A-Frame in Secondary Outboard Position, Portable Winch Aft of
Frame 94, Towing on LS/LP Padeye
Maximum Permissible Tension (MPT) 20,000 lbf
DLTw Factor of Safety (FS) 1.5 FS to Yield Hydraulic capacity
20,000 lbf
Maximum Side Angle (S) 30° Towing Maximum Vertical Angle (V) 45°
Towing Lead-in Angle (A) 87°- 110° LS/LP Padeye Wrap Angle (W) 49°
- 90° Portable Winch Aft of Frame 94
Figure 56
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 64 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
5. Operational Figures
5.1. Load Geometry
Figure 57: Geometry Angle Definitions
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 65 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
Figure 58: A-Frame Stopped Position reference
Figure 59: A-Frame Padeye reference
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 66 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
5.2. A-Frame Image
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev.C
Page 67 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
Figure 68: A-Frame Picture
-
R/V Sikuliaq MCD – Stern A-Frame and Foundation, Rev. C
Page 68 of 68 ASC Job No. 2339, Date of 11/11/15 77/15Issue
R/V SIKULIAQ
Maximum Capability Document Summary: A-Frame and Foundation
Manufactured By: Allied Systems Co.
Reference Drawing Number: #76033
Prepared By: I.V. Kormishkin Maximum Permissible Tensions
(MPTs)
A-F
ram
e in
PRIM
AR
Y
Out
boar
d Po
sitio
n Port Flag Block with Station Keeping Load 30,000 lbf 30,000
lbf 20,000 lbf 20,000 lbf
Port Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
A-F
ram
e in
SEC
ON
DA
RY
O
utbo
ard
Posit
ion Port Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Port Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Station Keeping Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
Starboard Flag Block with Towing Load
30,000 lbf 30,000 lbf 20,000 lbf 20,000 lbf
This summary is provided for reference. It is the operator’s
responsibility to understand
the limits and assumptions as presented in the full Maximum
Capability Document.