Page 9 - statbility for masters and mates

Introduction
Captain D. R. Derrett wrote the standard text book, Ship Stability for Masters and Mates. In this 1999 edition, I have revised several areas of his book and introduced new areas/topics in keeping with developments over the last nine years within the shipping industry.
This book has been produced for several reasons. The main aims are as follows:
1. To provide knowledge at a basic level for those whose responsibilities include the loading and safe operation of ships.
2. To give maritime students and Marine Of®cers an awareness of problems when dealing with stability and strength and to suggest methods for solving these problems if they meet them in the day-to-day operation of ships.
3. To act as a good, quick reference source for those of®cers who obtained their Certi®cates of Competency a few months/years prior to joining their ship, port authority or drydock.
4. To help Masters, Mates and Engineering Of®cers prepare for their SQA/MSA exams.
5. To help students of naval architecture/ship technology in their studies on ONC, HNC, HND and initial years on undergraduate degree courses.
6. When thinking of maritime accidents that have occurred in the last few years as reported in the press and on television, it is perhaps wise to pause and remember the proverb `Prevention is better than cure'. If this book helps in preventing accidents in the future then the efforts of
Captain Derrett and myself will have been worthwhile.
Finally, I thought it would be useful to have a table of ship types (see next page) showing typical deadweights, lengths, breadths, Cb values and designed service speeds. It gives an awareness of just how big these ships are, the largest moving structures made by man.
It only remains for me to wish you, the student, every success with your Maritime studies and best wishes in your chosen career. Thank you.
C. B. Barrass