The material covered includes the details necessary for the Federal Aviation Administration certification of Airframe and Powerplants Technicians. The text expands well beyond this basic information, however, providing as in-depth study of both ac and dc systems for virtually all varieties of aircraft. The text takes students through the fundamentals of electron theory and on to the study of aircraft digital control systems. Integrated into the text are various examples of troubleshooting techniques as they apply to aircraft systems. The text also provides details on a variety of general and commercial aircraft electrical/electronic systems, including avionic systems. One of the major changes in this edition is the modernization of material about electrical and electronic equipment to reflect current practices.Coverage of transistors and semiconductors, lighting systems, and nickel cadmium batteries has been updated while troubleshooting techniques using digital and analog meters have been added. This edition includes a Student Study Guide that parallels the text. It provides fill-in-the-blank questions that identify key term, demonstrates applications of mathematical relationships, and validates learning progress by offering multiple-choice questions. The Instructor's Manual provides answers to the review questions and transparency masters to help you illustrate key concepts.