This second edition deals comprehensively with all aspects of a ships machinery from propulsion and steering to deck machinery and electrical equipment. Material has been added and revised to reflect the greater emphasis now being placed upon cost-effective operation of ships in terms of greater equipment reliability, more fuel-efficient engines and the ever-increasing shift towards automatically operated machinery and the need for fewer engineering crew. The scope of this book amply covers the level required for the Class 4 and Class 3 Engineers Certificates of Competency and for the first two years of the Engineer Cadet Training Scheme. Further information has been added to cover the Engineering Knowledge syllabus of the Masters Certificate. This book successfully explains the operation of all the ships machinery and provides an invaluable guide to anyone with a professional involvement in marine engineering, with an emphasis always being placed upon correct and safe procedures.