Ship Stability for Masters and Mates book cover

Ship Stability for Masters and Mates

Ship Stability for Masters and Mates explores all aspects of ship stability and ship strength, squat, and interaction and trim, as well as materials stresses and forces. Organized into 56 chapters, the book looks at the relationship between ship stability and ship motion, with emphasis on group weights in a ship. It also explains how TPCs are calculated for a range of drafts extending beyond the light and loaded drafts, along with form coefficients, including the coefficient of fineness of the waterplane area. The book explains how to perform KB, BM, and KM calculations and make graphics on metacentric diagrams. It considers large-angle stability, the effect of beam and freeboard on stability, and hydrostatic curves and values for vessels that are initially on even keel. The reader is also introduced to free-surface effects of slack tanks with divisional bulkheads, how side winds affect ship stability, and the correlation between freeboard and stability curves. Other chapters focus on timber ship freeboard marks, procedures and calculations for drydocking and stability, and ship squat in open water and in confined channels. The book also includes extracts from the 1998 Merchant Shipping (Load Line) Regulations Number MSN 1752(M). This book is intended for students seeking to obtain Transport Certificates of Competency for Deck Officers and Engineering Officers and STCW equivalent International qualifications, as well as Chief Mates and Officers on Watch (Officers in Charge) on board merchant ships and other maritime personnel, port authorities, marine consultants, nautical study lecturers, and marine superintendents.


Practising marine engineers, naval architects and ship operations personnel; Consulting marine engineers; Marine engineering students on courses in ship stability and related areas; Students on professional certification / vocational courses covering the above.

Paperback, 584 Pages

Published: September 2012

Imprint: Butterworth Heinemann

ISBN: 978-0-08-097093-6


  • "British specialists in marine technology (Barrass) and navigation (Derrett) provide a resource for students studying for their Transport Certificates of Competency for Deck Officers and Engineering Officers and STCW equivalent international qualification. Primarily for chief mates and officers on watch on board merchant ships, it focuses on linking ship stability with ship motions."--Reference & Research Book News, October 2013
    "…the book provides a comprehensive treatment of the subject with full supporting data. It is well written with clear illustrations. It can be thoroughly recommended to those at whom it is aimed and many others associated with the operation of ships will benefit from reading it."--The Naval Architect, January 2013


  • Acknowledgments



    Part I Linking Ship Stability and Ship Motions

        Chapter 1: Group Weights, Water Draft, Air Draft, and Density

        Chapter 2: Transverse Statical Stability

        Chapter 3: Effect of Decreasing Free Surface on Stability

        Chapter 4: TPC and Displacement Curves

        Chapter 5: Form Coefficients

        Chapter 6: Discussion on LCB Position Relative to Amidships

        Chapter 7: Quadrature ━ Simpson’s Rules for Areas and Centroids

        Chapter 8: Quadrature ━ Simpson’s Rules for Moments of Inertia

        Chapter 9: Quadrature ━ Simpson’s Rules for Centers of Pressure on Transverse Bulkheads

        Chapter 10: KB, BM, and KM Calculations and Graphics on Metacentric Diagrams

        Chapter 11: Final KG Plus 20 Reasons for Rise in KG

        Chapter 12: Angle of List Considerations ━ Text, Calculations, and Graphics

        Chapter 13: Angle of Heel ━ Effects of Suspended Weights

        Chapter 14: Angle of List Due to Bilging of Side Compartments

        Chapter 15: Heel Due to Turning

        Chapter 16: Angle of Loll

        Chapter 17: Moments of Statical Stability

        Chapter 18: Aspects of Trim ━ The Main Factors Involved

        Chapter 19: Trim Calculations ━ Changing Conditions of Loading

        Chapter 20: Trim Calculations ━ Satisfying Prescribed Requirements for End Drafts

        Chapter 21: Large-Angle Stability Considerations ━ GZ and KN Cross Curves of Stability

        Chapter 22: Effects of Beam and Freeboard on Large Angle Stability

        Chapter 23: Dynamical Stability Relating to Statical Stability Curves

       Chapter 24: Changes in Statical Stability Relating to Wave Profiles ━ Loss of Quasi-Static Stability

        Chapter 25: Hydrostatic Curves and Values for Vessels Initially on Even Keel

        Chapter 26: Hydrostatic Curves and Values for Vessels Initially Having Trim by the Bow or by the Stern

        Chapter 27: Increase in Draft Due to List

        Chapter 28: Combined List and Trim

        Chapter 29: Calculating Free-Surface Effects of Slack Tanks with Divisional Bulkheads

        Chapter 30: Bilging Effects of Stability ━ Permeability Effects

        Chapter 31: Effects of Side Winds on Ship Stability

        Chapter 32: Icing Allowances Plus Effects on Trim and Stability

        Chapter 33: The Sectional Area Curve

        Chapter 34: FL and PL Curves Plus Type A and Type B Vessels

        Chapter 35: Load Lines and Freeboard Marks

        Chapter 36: Timber Ship Freeboard Marks

        Chapter 37: IMO Grain Rules for Safe Carriage of Grain in Bulk

        Chapter 38: True Mean Draft

        Chapter 39: Inclining Experiment (Stability Test) Plus Fluctuations in a Ship’s Lightweight

        Chapter 40: The Calibration Book Plus Soundings and Ullages

        Chapter 41: Drydocking and Stability ━ Procedures and Calculations

        Chapter 42: Ship Squat in Open Water and in Confined Channels

        Chapter 43: Turning Circle Diameter (TCD) Values for Vessels in Shallow Waters

        Chapter 44: Interaction Effects, Including Two Case Studies

        Chapter 45: Rolling, Pitching, and Heaving Motions

        Chapter 46: Synchronous Rolling and Parametric Rolling of Ships

        Chapter 47: Effects of Change of Density on a Ship’s Draft and Trim

        Chapter 48: The Deadweight Scale

        Chapter 49: The Trim and Stability Book

        Chapter 50: Simplified Stability Information

        Chapter 51: The Stability Pro-Forma

        Chapter 52: Looking Forward into the Next Decade

    Part II Endnotes

        Chapter 53: Draft Surveys

        Chapter 54: Quality Control - Plus the Work of Ship Surveyors

        Chapter 55: Extracts from the 1998 Merchant Shipping (Load Line) Regulations Number MSN 1752(M)

        Chapter 56: Keeping Up to Date

    Part III Appendices

        Appendix I: Summary of Stability Formulae

        Appendix II: SQA/MCA 2004 Syllabuses for Masters and Mates

        Appendix III: Specimen Exam Questions with Marking Scheme

        Appendix IV: 100 Revision One-Liners

        Appendix V: How to Pass Exams in Maritime Studies

        Appendix VI: Ship Stability Data Sheets

        Appendix VII: Capsize of the Herald of Free Enterprise - A Journalistic Review


    Answers to Exercises

    General Particulars of Selected Merchant Ships, Delivered 2007-2011

    Nomenclature of Ship Terms



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