This book provides guidance on safe operation of anchor handling tug supply vessels. It discusses the theory and techniques used in anchor handling and towing operations, AHTS vessel capability, roles of onboard personnel and potential dangers.
This book sets out in practical and simple terms the theoretical knowledge, methods and techniques that should be used to avoid placing AHTS vessels at unnecessary risk during routine operations. It outlines the forces acting on the vessel and discusses vessel capabilities and equipment. Case studies of the Stevns Power and Bourbon Dolphin are used to illustrate the potential dangers in AHTS operations.
This book will benefit Masters and crew on AHTS vessels, as well as towmasters, rig movers, barge masters, tower foremen and shore-based personnel who utilise these vessels in anchor handling and towing duties.
Part 1 – Theory
Chapter 1 – AHTS power, thrusters, propulsion and steering
Chapter 2 – The environmental forces acting on an AHTS vessel
Chapter 3 – Controlling an AHTS vessel’s thrusters and rudders
Chapter 4 – The effect of a tow on AHTS vessel stability
Chapter 5 – Case studies
Appendix to Part 1 – Possible improvements to AHTS vessel safety
Part 2 – Practice
Chapter 1 – Introduction
Chapter 2 – Basic operational cautions – summary from Part 1
Chapter 3 – Summary of the key points of Part 2
Chapter 4 – The behaviour of AHTS class vessels when going astern
Chapter 5 – Bollard pull certification
Chapter 6 – Turning and manoeuvring modern anchor handling vessels
Chapter 7 – The AHTS design and towing operations
Chapter 8 – The dangers of very high loads during deep water anchor handling operations
Chapter 9 – The dangers of high speed manoeuvring during lay barge operations
Chapter 10 – Some operational characteristics of modern high powered AHTS type vessels
Chapter 11 – Anchor handling loads – basic data required and how to use it
Chapter 12 – Calculating anchor handling loads
Chapter 13 – Guidelines on when to start, cease and re-evaluate the safety of an anchor handling operation
Chapter 14 – Two boat anchor deployment/recovery operations – management of risk
Chapter 15 – ‘Load sharing’ mooring operations – particular risks
Chapter 16 – The responsibilities of personnel in charge of anchor handling and towing operations
Chapter 17 – Instructions to towmasters and rig movers
Chapter 18 – Ship knowledge and practical ship handling exercises
Chapter 19 – Offshore construction operations
APPENDICES
Appendix 1 – Rig move meeting pro forma
Appendix 2 – Reference documents
Appendix 3 – Tugmaster Training – A view by Captain Terry Phillips
Appendix 4 – Further reading
- Number of Pages:
- 288
- ISBN:
- 9781904050216
- Published Date:
- April 2013
- Binding Format:
- paperback
- Book Height:
- 294 mm
- Book Width:
- 210 mm
- Weight:
- 1.4 kg
- Author:
I. C. Clark and M. Hancox
- Preview:
- Yes
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