PREFACE

The handbook is designed to aid students enrolled in a formal course of instruction as well as the individual who is studying on his/her own. Since the knowledge requirements for the airframe and powerplant ratings closely parallel each other in some subject areas, the chapters which discuss fire protection systems and electrical systems contain some material which is also duplicated in the Airframe and Powerplant Mechanics Powerplant Handbook, AC 65-12A, and the Airframe and Powerplant Mechanics Airframe Handbook, AC 65-15A.

This volume contains information on aircraft drawings, weight and balance, aircraft materials and processes, physics, electricity, inspection, ground support, and tools. Knowledge gained from the study of this handbook is essential before proceeding in a course of study in either the airframe or powerplant handbooks.

Because there are so many different types of airframes and powerplants in use today, it is reasonable to expect that differences exist in the components and systems of each. To avoid undue repetition, the practice of using representative systems and units is carried out throughout the handbook. Subject matter treatment is from a generalized point of view, and should be supplemented by reference to manufacturers' manuals or other textbooks if more detail is desired. This handbook is not intended to replace, substitute for, or supersede official regulations or the manufacturers' instructions.