This book aims to bridge the gap between the mathematical treatment often used by the specialist control engineer and the (necessarily) narrow descriptive literature of a particular manufacture. It is written primarily for thoes with a good general engineering backround who have had little experience instrumentation and control. The work favours marine engineering but students and engineers in other industries should find it useful book us the subject has a common basis. Text and examples cover the requirements of Department of Transport (DTp) and all Business and Technician Eduacation Council (BTEC) and SCOTVEC syllabuses and examinations for marine engineer officers and casets.