As part of a Routledge series of textbooks for aircraft-engineering students and those taking EASA Part-66 exams, it is suitable for both independent and tutor-assisted study and includes self-test questions, exercises and multiple-choice questions to enhance learning. The content of this book is mapped across from the flight instruments and automatic flight (ATA chapters 31, 22) content of EASA Part 66 modules 11, 12 and 13 (fixed/rotary-wing aerodynamics, and systems) and Edexcel BTEC nationals (avionic systems, aircraft instruments and indicating systems). David Wyatt CEng MRAeS has over 40 years’ experience in the aerospace industry and is currently Head of Airworthiness at Gama Engineering. His experience in the industry includes avionic development engineering, product support engineering and FE lecturing. David also has experieince in writing for BTEC National specifications and is the co-author of , and .