A21 - (C) Enclosure 1_U.S. Navy Towing Manual_SL740-AA-MAN-010-rev4 Post.pdf

ACN 1/R4 to U.S. Tow Manual

8-6.2

First para:

Current wording:

The contractor's docking plan should contain descriptions of all the docking blocks, such as location on the heavy lift vessel's cargo deck, the physical characteristics of the blocks, including material and dimensions. Keel block height should be kept to a minimum to reduce the required depth for FLO/FLO. As such, the use of concrete base blocks, common in dry docking, should be avoided.

Revised wording:

The contractor's docking plan should contain descriptions of all the docking blocks, such as location on the heavy lift vessel's cargo deck, the physical characteristics of the blocks, including material, dimensions, and construction. Blocks shall be constructed primarily of large timbers laid horizontally with a soft cap. All blocks shall have a soft cap of minimum 2 inches in thickness made of Douglas fir or pine. Soft caps shall be made of new unused wood. Keel block height should be kept to a minimum to reduce the required depth for FLO/FLO. As such, the use of concrete base blocks, common in dry docking, should be avoided.

8-6.3

Current Wording:

In general, unsatisfactory components are defined by:

• Steel: sections or blocks show excessive corrosion of the steel beams or structures; welds have fatigue cracks, or the structure has permanent deformation or buckling due to loading beyond the elastic limit.

• Timber: display very advanced deterioration. They are localized to widespread areas where timbers are missing; more widespread failures are possible.

• Fasteners: show severe deterioration and loss in cross-section to the point that the fasteners no longer fulfill their intended use.

• Soft cap timber: sections display advanced deterioration; there are sections where the timber is missing or deformed or soft caps made of inconsistent materials and not layered but joined by butting next to each other.

Revised Wording:

In general, unsatisfactory components are defined by:

• Steel: sections or blocks show excessive corrosion of the steel beams or structures; welds have fatigue cracks, or the structure has permanent deformation or buckling due to loading beyond the elastic limit.

• Timber: display very advanced deterioration. They are localized to widespread areas where timbers are missing; more widespread failures are possible.

• Fasteners: show severe deterioration and loss in cross-section to the point that the fasteners no longer fulfill their intended use.

• Soft cap timber: sections display advanced deterioration; there are sections where the timber is missing or deformed or soft caps made of inconsistent materials and not layered but joined by butting next to each other.

• Dimensions: Height of blocks are greater than +/-0.25 inches from the approved Transport Manual. Length and width of blocks are greater than +/-0.5 inches from the approved Transport Manual.

SL740-AA-MAN-010

0910-LP-109-5266 REVISION 4

• • a

To I D anua

THIS DOCUMENT SUPERSEDES NAVSEA SL740-AA-MAN-010 DATED 1 JULY 2002

DISTRIBUTION STATEMENT A: THIS DOCUMENT HAS BEEN APPROVED FOR PUBLIC RELEASE AND

SALE; ITS DISTRIBUTION IS UNLIMITED

Published by direction of Commander Naval Sea Systems Command

1 NOVEMBER 2022

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APPLICABLE TMINS/PUB. NO.

SL740-M-MAN-010

PUBLICATION DATE (day, month, year)

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TITLE

U.S. NAVY TOWING MANUAL

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Complete re-write.

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Continued on additional pages as needed.

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ACQUISITION

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TECHNICAL

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APPROVAL

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DATE

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MAS.1038426830 �'lllllou4i.-aso.cM-'OO'

NAVSEA FORM 4160/08 (Rev. 02°2013)

Foreword

Department of the Navy Naval Sea Systems Command 1 April 2023

This revision of the U.S. Navy Towing Manual provides the latest information concerning the towing and heavy lift transport of U.S. Navy ships. Much of the updated heavy lift information is the direct result of the successful heavy lifts of USS JOHN S MCCAIN (DOG 56) and USS FITZGERALD (DOG 62) in the Far East in 2017.

Comments about or recommendations concerning the U.S. Navy Towing Manual may be forwarded to the Supervisor of Salvage and Diving, Naval Sea Systems Command. 1333 Isaac Hull Avenue ST Stop 1072, Washington Navy Yard, DC 20376-1072 or call commercial (202) 781- 1731 or DSN (312) 236-1731.

Director of Ocean Engineering Supervisor of Salvage and Diving

U.S. Navy Towing Manual

Table of Contents

Chapter 1-

1-1

1-2

1-3

1-3.1

1-3.2

1-3.3

1-4

1-4.1

1-5

1-5.1

1-6

1-7

Chapter 2-

2-1

2-2

2-3

2-3.1

2-3.2

2-3.3

2-4

2-4.1

2-4.2

2-4.3

2-5

2-5.1

2-5.2

2-5.3

Chapter3-

3-1

3-2

3-2.1

3-3

3-4

3-4.1

OPERATIONS OVERVIEW ..............................................................................................1-1

Introduction to Navy Towing ........................................................................................... 1-1

Harbor Towing................................................................................................................. 1-3

Point-to-Point Towing ..................................................................................................... 1-3

Inland Towing ................................................................................................................................. 1-3

Ocean Towing ................................................................................................................................. 1-3

Defueled Nuclear Powered Ships ................................................................................................... 1-4

Rescue and Emergency Towing ........................................................................................ 1-4

Naval Task Force Standby Duty ...................................................................................................... 1-4

Salvage Towing ................................................................................................................ 1-4

Combat Salvage and Towing ........................................................................................................... 1-4

Special Ocean Engineering Projects ................................................................................. 1-4

Tow-and-Be-Towed By Naval Vessels ............................................................................ 1-5

OVERVIEW OF TOWING SHIPS .................................................................................... 2-1

Introduction ...................................................................................................................... 2-1

Requirements Placed on Towing Ships ........................................................................... 2-1

Design Characteristics ...................................................................................................... 2-1

Stern Arrangement.......................................................................................................................... 2-2

Tug Powering and Bollard Pull ........................................................................................................ 2-3

Fenders .......................................................................................................................................... 2-3

Features and Characteristics of Fenders ........................................................................................ 2-3

Operating Considerations ............................................................................................................... 2-4

Yard or Harbor Tugs ........................................................................................................ 2-6

YTL Class ........................................................................................................................................ 2-7

VTB Class ........................................................................................................................................ 2-7

YT 802 Class and Following .............................................................................................................. 2-7

Ocean Tugs ...................................................................................................................... 2-8

ARS 50 Class .................................................................................................................................... 2-8

T-ATF 166 Class .............................................................................................................................. 2-8

T-ATS Class ..................................................................................................................................... 2-9

TOWING SYSTEM DESIGN ............................................................................................ 3-1

Introduction ...................................................................................................................... 3-1

Designing a Towing System .............................................................................................. 3-1

Tug and Tow Configuration ............................................................................................................. 3-2

System Design Considerations ......................................................................................... 3-2

System Design Methodology ............................................................................................. 3-3

Calculating Total Towline Tension .................................................................................................. 3-3

Calculating Steady-State Tow Tension of the Towed Vessel .......................................................... 3-3 ii

Calculating Steady-State Towline Resistance ................................................................................. 3-4

Calculating Steady-State Towline Tension ...................................................................................... 3-5

Dynamic Loads on the Towline ....................................................................................................... 3-7

Factors of Safety ............................................................................................................................. 3-9

Predicting Dynamic Tensions ......................................................................................................... 3-9

3-4.2 Calculating Towline Catenary ....................................................................................................... 3-10

3-4.3 Reducing Anticipated Towline Peak Loads ................................................................................... 3-13

Using an Automatic Towing Machine ........................................................................................... 3-27

Using Synthetic Towlines .............................................................................................................. 3-27

3-4.4 Tug and Equipment Selection ....................................................................................................... 3-28

Tug Selection ................................................................................................................................ 3-28

Tow Jewelry (Gear) Selection Factors ...........................................................................................3-31

Chapter4-

4-1

4-2

4-3

4-3.1

4-3.2

4-4

4-5

4-5.1

4-5.2

4-5.3

4-5.4

4-5.5

4-5.6

4-5.7

4-5.8

4-5.1

4-6

4-6.1

4-6.2

4-6.3

4-6.4

4-6.5

4-6.6

4-6.7

4-6.8

4-6.9

4-6.10

4-7

4-8

4-8.1

TOWLINE SYSTEM COMPONENTS ............................................................................... 4-1

Introduction ...................................................................................................................... 4-1

Towline System Components .......................................................................................... 4-1

Main Tow Hawser ........................................................................................................... 4-3

Wire Rope Tow Hawsers ................................................................................................................ 4-3

Synthetic Towing Hawsers ............................................................................................................. 4-3

Secondary or Emergency Towlines .................................................................................. 4-4

Tow Attachment Points .................................................................................................. 4-9

Tow Winches and Tow Machines ................................................................................................. 4-10

Bitts .............................................................................................................................................. 4-11

Padeyes........................................................................................................................................ 4-14

Padeye Design .............................................................................................................................. 4-18

Deck Structure .............................................................................................................................. 4-21

Smit Towing Bracket ..................................................................................................................... 4-21

Towing Hooks ............................................................................................................................... 4-23

Fairleads ....................................................................................................................................... 4-23

Chocks .......................................................................................................................................... 4-23

Connecting Hardware (Jewelry) .................................................................................... 4-24

Shackles ....................................................................................................................................... 4-24

Other Connecting Links ................................................................................................................ 4-28

Wire Rope Terminations ............................................................................................................... 4-29

Synthetic Line Terminations .......................................................................................................... 4-32

Synthetic Spring ........................................................................................................................... 4-33

Bridles........................................................................................................................................... 4-34

Pendants ...................................................................................................................................... 4-37

Retrieval Pendant ......................................................................................................................... 4-39

Chain Stoppers, Carpenter Stoppers, and Pelican Hooks ............................................................. 4-39

Chafing Gear ................................................................................................................................. 4-42

Fuse or Safety Link Concept ........................................................................................... 4-44

Line Handling Devices ................................................................................................... 4-45

Caprails ........................................................................................................................................ 4-45 iii

4-8.2

4-8.3

4-8.4

4-9

4-9.1

4-9.2

4-9.1

4-9.2

4-10

Chapter 5-

5-1

5-2

5-3

5-3.1

5-3.2

5-3.3

5-3.1

5-4

5-4.1

5-4.2

5-4.3

5-5

5-6

5-6.1

Tow Bows ..................................................................................................................................... 4-46

Horizontal Stern Rollers ............................................................................................................... 4-46

Capstans and Gypsy Heads .......................................................................................................... 4-48

Sweep Limiting Devices................................................................................................. 4-49

Vertical Stern Rollers .................................................................................................................... 4-49

Norman Pins................................................................................................................................. 4-51

Hogging Strap ............................................................................................................................... 4-53

Lateral Control Wire ..................................................................................................................... 4-54

Cutting Gear ................................................................................................................... 4-55

TOW PLANNING AND PREPARATION ........................................................................ 5-1

Introduction ...................................................................................................................... 5-1

Lessons Learned ............................................................................................................... 5-1

Staff Planning .................................................................................................................. 5-2

Definition of a Navy Tow ................................................................................................................ 5-2

Tow Ship Selection.......................................................................................................................... 5-2

Operational Considerations ............................................................................................................ 5-2

Support ........................................................................................................................................... 5-2

Riding Crews................................................................................................................................... 5-3

Manned Tows ................................................................................................................................. 5-3

Tug Selection .................................................................................................................................. 5-4

Unsuitable Tows ............................................................................................................................. 5-4

Selecting the Navigation Track ....................................................................................................... 5-5

Tow Responsibilities ...................................................................................................... 5-5

Sponsoring Command Responsibilities ........................................................................................... 5-6

Towing Command Responsibilities ................................................................................................. 5-7

Assisting Command Responsibilities ............................................................................................... 5-7

Review Instructions and Operational Orders ................................................................. 5-7

Preparing the Tow ........................................................................................................... 5-7

Installing Flooding Alarms, Draft Indicators, and Other Alarms ..................................................... 5-8

Flooding Alarm Sensor Mounting Requirements ............................................................................ 5-8

Wiring and Power Requirements .................................................................................................. 5-10

Alarm Lighting Requirements ........................................................................................................5-11

Audible Alarms ..............................................................................................................................5-11

Requirements for Other Alarms ....................................................................................................5-11

Draft Indicator Requirements ........................................................................................................5-11

5-6.2 Towed Vessel Propeller Preparation ............................................................................................. 5-12

Removing Propellers ..................................................................................................................... 5-12

Locking Propellers ......................................................................................................................... 5-13

Allowing Propellers to Free-Wheel ............................................................................................... 5-13

Stern Tube .................................................................................................................................... 5-15

5-6.3 Ballasting or Loading for Proper Trim ........................................................................................... 5-15

5-6.4 Ballasting for Proper Stability ....................................................................................................... 5-15

5-6.5 Two Valve Protection .................................................................................................................... 5-16 iv

5-6.6

5-6.7

5-6.8

5-6.9

5-6.10

5-7

5-7.1

5-7.2

5-7.3

5-7.4

5-7.5

5-8

5-8.1

5-8.2

5-8.3

5-8.4

5-8.5

5-8.6

5-8.7

5-8.8

5-8.9

5-8.10

5-8.11

5-8.12

5-8.13

5-8.14

5-8.15

5-8.16

5-9

5-9.1

5-9.2

5-9.3

5-9.4

5-10

5-11

Chapter6-

6-1

6-2

6-2.1

6-2.2

Inspecting the Tow for Structural Damage .................................................................................. 5-17

Barge Hull Thickness ...................................................................................................................... 5-17

Locking the Rudder ....................................................................................................................... 5-20

Installing Navigational Lights ........................................................................................................ 5-25

Selecting the Tow Rig ................................................................................................................... 5-25

Preparing Tank Vents ................................................................................................................... 5-26

Emergency Systems ...................................................................................................... 5-26

Electrical Power ............................................................................................................................ 5-27

Fire-fighting ................................................................................................................................... 5-27

Dewatering.................................................................................................................................... 5-28

Deciding to Use Dewatering Equipment ....................................................................................... 5-28

Choosing Equipment ..................................................................................................................... 5-29

Pre-staging Hoses ........................................................................................................................ 5-29

Marking Access Areas on Tow ...................................................................................................... 5-29

Preparing for Emergency Anchoring of the Tow .......................................................................... 5-30

Completing the Comprehensive Tow Package for Ocean Tows ................................... 5-33

Tow Specifications ........................................................................................................................ 5-33

Tug Specifications ......................................................................................................................... 5-33

Tow Hawser Certification and Size .............................................................................................. 5-33

Tow Shackle Certification and Size ............................................................................................... 5-34

Appendix H ................................................................................................................................... 5-34

Steady State Tow Calculations ...................................................................................................... 5-34

Sketch of the Tow Configuration ................................................................................................... 5-34

Objective Quality Evidence for Tow Jewelry and Attachment Points........................................... 5-34

Weather Routing Plan .................................................................................................................. 5-34

Tow Limiting Conditions and Identification of Weakest Link ....................................................... 5-35

Projected Tow Route .................................................................................................................... 5-35

Identification of Ports of Refuge .................................................................................................. 5-35

Determining Seaworthiness.......................................................................................................... 5-35

Towing Machine/ Towing Winch Certification .............................................................................. 5-35

Commercial Vessels (U.S. Coast Guard Inspected) Master's Towing Certificate........................... 5-36

Preparing for a Riding Crew .......................................................................................................... 5-36

Accepting the Tow ......................................................................................................... 5-36

Inspecting the Tow ....................................................................................................................... 5-36

Unconditionally Accepting the Tow.............................................................................................. 5-38

Accepting the Tow as a Calculated Risk ....................................................................................... 5-38

Rejecting the Tow ......................................................................................................................... 5-38

Preparing for Departure ................................................................................................ 5-38

Completing the Delivery Letter or Message ................................................................. 5-39

TOWING PROCEDURES ............................................................................................... 6-1

Introduction ...................................................................................................................... 6-1

Initiating the Tow ............................................................................................................ 6-2

Accelerating with a Tow ................................................................................................................. 6-2

Getting Underway from a Pier ....................................................................................................... 6-2

6-2.3

6-2.4

6-2.5

6-2.6

6-2.6.1

6-2.6.2

6-2.6.3

6-2.6.4

6-2.7

6-2.7.1

6-2.7.2

6-2.7.3

6-2.8

6-2.9

6-3

6-3.1

6-3.2

6-3.3

6-3.3.1

6-3.3.2

6-3.3.3

6-3.3.4

6-3.3.5

6-3.3.6

6-3.3.7

6-3.3.8

6-3.3.9

6-3.3.10

6-3.4

6-4

6-4.1

6-4.2

6-4.3

6-4.4

6-4.5

6-4.5.1

6-4.5.2

6-4.6

6-4.7

6-4.7.1

6-4.7.2

6-4.7.3

6-4.7.4

6-4.7.5

6-5

Getting Underway in the Stream .................................................................................................... 6-3

Getting Underway while at Anchor ................................................................................................ 6-5

Recovering a Lost Tow .................................................................................................................... 6-6

Emergency Connection to a Disabled Vessel or Derelict ................................................................ 6-7

Using the Anchor Chain .................................................................................................................. 6-9

Using Installed Bitts ...................................................................................................................... 6-10

Using a Gun Mount or Foundation ............................................................................................... 6-11

Placing a Crew on Board ............................................................................................................... 6-11

Approaching a Drifting Tow .......................................................................................................... 6-11

Establishing the Relative Drift ....................................................................................................... 6-11

Similar Drift Rate .......................................................................................................................... 6-12

Dissimilar Drift Rate ..................................................................................................................... 6-13

Passing the Towline ...................................................................................................................... 6-14

Communications between Ships ................................................................................................. 6-14

Ship Handling and Maneuvering with a Tow ................................................................ 6-15

Tug Steering .................................................................................................................................. 6-15

Keeping a Tug and Tow in Step .................................................................................................... 6-17

Controlling the Tow ...................................................................................................................... 6-17

Active Control of the Tow's Rudder .............................................................................................. 6-17

Yawing and Sheering of the Tow .................................................................................................. 6-17

Trim .............................................................................................................................................. 6-18

Speed ........................................................................................................................................... 6-18

Use of Rudder or Skegs ............................................................................................................... 6-18

Location of the Attachment Point ................................................................................................ 6-18

Propellers...................................................................................................................................... 6-18

Steering Tug ................................................................................................................................. 6-19

Sea Anchor or Drogue .................................................................................................................. 6-19

Bridle vs. Single Lead Pendant .................................................................................................. 6-19

Backing Down with a Tow ............................................................................................................. 6-19

Routine Procedures While at Sea ................................................................................. 6-19

Setting Course .............................................................................................................................. 6-20

Towing Speed ............................................................................................................................... 6-20

Towline Scope ··········································································································6-20 Towing Watch ................................................................................................................................ 6-21

Periodic Inspection of Tow ........................................................................................................... 6-21

Boarding the Tow for Inspection ................................................................................................... 6-21

Inspection Guidelines .................................................................................................................... 6-21

Towing in Heavy Weather ............................................................................................................. 6-22

Replenishment at Sea .................................................................................................................. 6-24

Transferring Personnel and Freight .............................................................................................. 6-24

Emergency Replenishment ........................................................................................................... 6-24

Rigging and Use of Fueling Rigs ................................................................................................... 6-24

Astern Refueling from Another Tug ............................................................................................. 6-24

Replenishment Near a Port........................................................................................................... 6-25

Terminating the Tow ..................................................................................................... 6-25

V vi

6-5.1

6-5.2

6-5.3

6-5.4

6-5.5

6-6

6-6.1

6-6.2

6-6.3

6-7

6-7.1

6-7.2

6-7.3

Requesting Assistance .................................................................................................................. 6-25

Shortening the Towline ................................................................................................................. 6-25

Disconnecting the Tow ................................................................................................................. 6-26

Towing Delivery Receipt and Reports........................................................................................... 6-26

Transferring the Tow at Sea ......................................................................................................... 6-26

Tow and Be Towed by Naval Vessels ........................................................................... 6-28

Towing Systems ........................................................................................................................... 6-28

Tow Procedures ............................................................................................................................ 6-30

Procedure for the Towing Ship ..................................................................................................... 6-30

Procedure for the Towed Ship ..................................................................................................... 6-30

Quick Release of Towed Ship ....................................................................................................... 6-31

Getting Underway with Tow......................................................................................................... 6-31

Emergency Towing Procedures ..................................................................................... 6-32

Fire ............................................................................................................................................... 6-32

Tug and Tow Collision ................................................................................................................... 6-32

Sinking Tow................................................................................................................................... 6-33

Beaching a Sinking Tow ................................................................................................................ 6-33

Slipping the Tow Hawser .............................................................................................................. 6-34

6-7.4 Disabled Towing Machine ............................................................................................................. 6-35

Disconnecting the Tow ................................................................................................................. 6-35

Recovering the Towline ................................................................................................................ 6-36

6-7.5 Anchoring with a Tow ................................................................................................................... 6-37

6-7.6 Quick Disconnect System ............................................................................................................. 6-37

6-7.7 ManOverboard .............................................................................................................................. 6-38

6-7.8 Using an Orville Hook to Recover a Lost Tow ............................................................................... 6-39

Origin of the Orville Hook ............................................................................................................. 6-39

Use of an Orville Hook .................................................................................................................. 6-39

Chapter 7-

7-1

7-2

7-2.1

7-2.2

7-2.3

SPECIAL TOWS .......................................................................................................... 7-1

Introduction ...................................................................................................................... 7-1

Target Towing .................................................................................................................. 7-1

Williams Target Sled....................................................................................................................... 7-1

Towing Equipment .......................................................................................................................... 7-2

Routine Procedures ........................................................................................................................ 7-2

Transporting the Target to the Exercise......................................................................................... 7-2

Streaming the Target ...................................................................................................................... 7-3

Making Turns with the Target ........................................................................................................ 7-3

Recovering the Target .................................................................................................................... 7-3

7-2.4 Special Procedures ......................................................................................................................... 7-4

Passing the Target to a Combatant Ship ........................................................................................ 7-4

Recovering a Capsized Target ......................................................................................................... 7-4

7-2.5

7-2.6

7-3

Target Towing Precautions ............................................................................................................. 7-5

Other Targets ................................................................................................................................. 7-5

Towing Through the Panama Canal ................................................................................ 7-5

7-4 Towing in Ice .................................................................................................................... 7-6 vii

7-4.1

7-4.2

7-4.3

7-5

7-5.1

Short-Scope Method ....................................................................................................................... 7-6

Saddle Method ................................................................................................................................ 7-7

Rigging for Tow ............................................................................................................................... 7-7

Submarine Towing .......................................................................................................... 7-8

Towing Arrangements ..................................................................................................................... 7-8

Retractable Deck Fittings ................................................................................................................ 7-8

Tow Attachment Points .................................................................................................................. 7-8

7-5.2 Personnel Safety Issues ................................................................................................................. 7-9

Protection for Work on the Deck ................................................................................................... 7-9

Boarding the Submarine ............................................................................................................... 7-10

Personnel Experience ................................................................................................................... 7-10

Submarine Atmosphere Problems Resulting from Fire ................................................................ 7-10

7-5.3 Tendency to Yaw and Sheer ......................................................................................................... 7-10

7-5.4 Rigging for the Tow....................................................................................................................... 7-10

Hardware ...................................................................................................................................... 7-11

Underwater Projections ................................................................................................................ 7-11

Towing by the Stern ..................................................................................................................... 7-12

Use of the Sail as a Tow Connection ............................................................................................. 7-12

Welding to the Hull ....................................................................................................................... 7-12

Passing a Messenger ...................................................................................................................... 7-12

7-5.5 Towing Operations ........................................................................................................................ 7-13

Towing on the Automatic Towing Machine .................................................................................. 7-13

Towline Tension and Towing Speeds ........................................................................................... 7-13

Drogue .......................................................................................................................................... 7-14

7-6

7-6.1

7-6.2

7-7

7-8

7-8.1

7-8.2

7-8.3

7-9

7-9.1

7-9.2

7-9.3

7-9.4

7-9.5

ChapterB-

8-1

8-1.1

8-2

8-2.1

8-2.2

Towing Distressed Merchant Ships .............................................................................. 7-14

Information Sources .................................................................................................................... 7-15

Attachment Points ........................................................................................................................ 7-15

Ships with Bow Ramp/Door ........................................................................................... 7-15

Towing Distressed NATO Ships ..................................................................................... 7-15

Standardized Procedures (ATP-43) ............................................................................................... 7-16

Making the Tow Connection ......................................................................................................... 7-16

NATO Standard Towing Link ......................................................................................................... 7-17

Unusual Tows ................................................................................................................ 7-18

Dry Dock (Careened) .................................................................................................................... 7-18

Damaged Ship (Stern First) ........................................................................................................... 7-18

Inland Barge Towing ..................................................................................................................... 7-18

Other Tows ................................................................................................................................... 7-18

Towing on the Hip ........................................................................................................................ 7-19

HEAVY LIFT TRANSPORT .............................................................................................. 8-1

Introduction ......................................................................................................................8-1

.Responsible Organizations ............................................................................................................. 8-2

Special Considerations .................................................................................................... 8-4

Dry Docking Comparison ................................................................................................................ 8-4

Commercial Heavy Lift Vessels ...................................................................................................... 8-5 viii

8-2.3

8-3

8-3.1

8-3.2

8-3.3

8-3.3.1

8-3.3.2

8-3.3.3

8-3.3.4

8-3.3.5

8-3.4

8-3.5

8-3.5.1

8-3.5.2

8-3.6

8-3.6.1

8-3.6.2

8-4

8-4.1

8-4.1

8-4.2

8-4.3

8-4.4

8-4.5

8-4.6

8-4.6.1

8-4.6.2

8-4.6.3

8-4.6.4

Choosing a Heavy Lift Vessel.......................................................................................................... 8-9

FLO/FLO Planning and Preparations ................................................................................. 8-9

Notional Heavy Lift Schedule ......................................................................................................... 8-9

Request for Proposal (RFP) ...........................................................................................................8-11

Preparations ................................................................................................................................. 8-14

Choosing a Heavy Lift Team ......................................................................................................... 8-14

Contractor Preparations ............................................................................................................... 8-17

Transport Manual ......................................................................................................................... 8-17

Choosing an Onload Site .............................................................................................................. 8-19

Preparing the Deck ....................................................................................................................... 8-20

Pre-Load Conference......................................................................................................................8-21

Load Site ....................................................................................................................................... 8-22

Visual Survey ................................................................................................................................ 8-22

Support Tugs/Divers ..................................................................................................................... 8-23

Preparing the Asset ...................................................................................................................... 8-23

Arrival Conditions ......................................................................................................................... 8-24

Transport of Damaged Vessels .