Effective Mooring, 3rd Edition

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Published Date

February 2010

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Effective Mooring, 3rd Edition

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This publication discusses equipment, operating practices and procedures that lead to effective and safe mooring. The guide raises awareness of the hazards associated with mooring equipment and mooring operations by providing a better understanding of the subject. It provides recommendations on safety, minimum equipment levels and good operating practices, including a summary of the personal safety items. This guide complements existing technical publications, in particular Mooring Equipment Guidelines.

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This popular title, now in its third edition, provides practical guidance on the basic principles of mooring. Throughout the book emphasis is placed on safety, using a detailed understanding of the operational requirements to create a greater awareness of the dangers and hazards. Subjects covered include basic mooring theory, mooring winches, wires and ropes, mooring at buoys and anchoring. Minimum equipment levels and good operating practices are recommended throughout.



Section 1

Effective Mooring

1.1 What Does a Mooring System Do?

1.2 How Big are these Forces?

1.3 Mooring Layout

1.4 Wires or Synthetic Fibre Ropes

1.5 Elasticity

1.6 Vertical Angle (Dip)

1.7 Mixed Moorings

1.8 Synthetic Fibre Tails

1.9 Marine Loading Arms

1.10 Quick Release Hooks


Section 2

Mooring Winches

2.1 Winch Control Types

2.2 Winch Drums

2.3 Winch Brakes

2.4 Correct Layering

2.5 Split Drum Winches

2.6 Undivided Drum Winches

2.7 Correct Reeling

2.8 Brake Condition

2.9 Testing Brakes

2.10 Application of Brake

2.11 Incorrect Use of Brake

2.12 Exceptional Circumstances

2.13 Winch in Gear

2.14 Freezing Weather

2.15 Joining a New Ship

2.16 Safety Reminders


Section 3

Wire Mooring Lines

3.1 Construction of Wire Mooring Lines

3.2 Definitions

3.3 Typical Steel Wire Rope Constructions

3.4 Bend Radius

3.5 Advantages of Steel Wire Ropes

3.6 Certification

3.7 Stoppers for Use with Steel Wires

3.8 Care of Wire

3.9 Maintenance of Steel Wire Mooring Ropes

3.10 Selection of Anchor Point for 1st Layer of Wire on a Drum

3.11 Splicing Wire

3.12 Safety Reminders


Section 4

Synthetic Fibre Ropes

4.1 Construction of Synthetic Fibre Ropes

4.2 Types of Material Used

4.3 Relative Minimum Breaking Loads of Synthetic Ropes

4.4 Certification

4.5 Stoppers for Use with Synthetic Ropes

4.6 Belaying Synthetic Fibre Ropes on Bitts

4.7 Snap Back

4.8 Rope Care

4.9 Rope Inspection

4.10 Splicing

4.11 Safety Reminders


Section 5

Offshore Operations

5.1 Multi-Buoy Moorings

5.2 Single Point Moorings

5.3 Mooring to FPSOs and FSOs

5.4 Dedicated Shuttle Tankers

5.5 Conventional Tankers

5.6 Mooring Operation

5.7 Ship-to-Ship Transfer (STS)


Section 6

Windlasses and Anchoring

6.1 Brakes

6.2 Cable Stoppers

6.3 Anchor Cables

6.4 Communication

6.5 Maintenance of Windlass Brakes

6.6 Adjustments

6.7 Prolonged Periods of Non-Use

6.8 Safety Reminders


Section 7

Personal Safety

7.1 Handling of Moorings

7.2 Safe Handling of Tug Lines

7.3 Gloves

7.4 Safety Reminders

The aim of this guide is to complement existing technical publications and rules and regulations with one that is deliberately written in a style that communicates effectively with seafarers at all levels.

OCIMF was formed in April 1970 in response to the growing public concern about marine pollution, particularly by oil, after the Torrey Canyon incident in 1967. In the early 1970s, a variety of anti-pollution initiatives were starting to emerge nationally, regionally and internationally, but with little coordination. Through OCIMF, the oil industry was able to play a stronger, coordinating role in response to these initiatives, making its professional expertise widely available through cooperation with governments and intergovernmental bodies.

OCIMF was granted consultative status at the IMO in 1971 and continues to present oil industry views at IMO meetings. Since then, its role has broadened to take account the changing maritime activities of its membership. Its remit now covers tankers, barges, offshore support vessels and terminals and its advice extends to issues like shipping in ice and large-scale piracy, which rarely troubled the oil industry when OCIMF was first created in the 1970s.

The current membership of OCIMF comprises 112 companies worldwide.

Today, OCIMF is widely recognised as the voice of the oil industry providing expertise in the safe and environmentally responsible transport and handling of hydrocarbons in ships and terminals and setting standards for continuous improvement. Membership is extensive and includes every oil major in the world along with the majority of National Oil Companies.

OCIMF has much to be proud of. Not only has it contributed to a substantial quantity of regulation at the IMO aimed at improving the safety of tankers and protecting the environment, but it has introduced important new guidance on pressing current issues such as piracy and Arctic shipping. With the process of introducing new Internationally-accepted regulation necessarily slow as it crosses many individual countries and jurisdictions, OCIMF is in the unique position of being able to leverage the expertise of its membership to press ahead with much needed guidance on important industry issues. This provides the means to improve practices in the membership and in the wider industry, and serves as a valuable reference for developing regulation.

Title: Effective Mooring, 3rd Edition
Number of Pages: 68
Product Code: WS1169K
ISBN: ISBN 13: 978-1-905331-65-9 (9781905331659), ISBN 10: 1-905331-65-7 (1905331657)
Published Date: February 2010
Binding Format: Paperback
Book Height: 180 mm
Book Width: 120 mm
Book Spine: 5 mm
Weight: 0.23 kg

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