AIRCRAFT GAS TURBINE ENGINE TECHNOLOGY

Aircraft Gas Turbine Engine Technology provides a comprehensive, easy-to-understand treatment of the background, development, and applications of the gas turbine engine it its various forms, such as turobjet, turbofan, turboprop, and turboshaft powerplants. Designed primarily as a resource for technicians preparing for the FAA aircraft powerplant mechanic certification, Aircraft Gas Turbine Engine Technology also may be used a reference. The text also discusses the changing maintenance and overhaul procedures and philosophies and the role of fuel metering in engine operation.

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PREFACE

Although the gas turbine, or jet engine, is a relative youngster to aviation, its growth and refinement have not only given new life to this industry, but also have been so rapid that keeping abreast of developments in this area has become very difficult. A great deal has been written about the gas turbine engine from an engineering viewpoint, but there is relatively little consolidated information treating this type of power plant at the technical level. The second edition of Aircraft Gas Turbine Engine Technology continues in the attempt to correct this deficiency.

Extensive changes have been made to several sections of the book, especially Chaps. 2, 10, 12, and 18, in order to reflect radical advancements in:

1. Design and usage of the turbofan and other gas turbine engines

2. New materials and methods of construction

3. Improvements in fuel controls

4. Changing maintenance and overhaul procedures and philosophies

Although the original text was designed primarily to provide a source of information about the gas turbine engine for aircraft technicians, it has been found to be very useful to other students at all levels, including those in engineering, who wish to study this form of prime mover. The author has tried to follow a logical presentation and to use the type of approach that does not assume a great deal of technical information on the part of the reader. Beginning with the background and development of the gas turbine engine, the book ends with a discussion of several modern engines of this type. The section of the book dealing with mathematical relationships, which are an integral part of any study dealing with this type of engine, has been simplified without, it is hoped, sacrificing clarity and completeness to any great degree. As the heading for Chap. 3 implies, all who can add and subtract should have little difficulty reading and understanding this part of the book. The part of Chap. 12 dealing with the fuel control is slightly more detailed than other sections be- cause fuel metering is a critical factor in correct engine operation and because the fuel control is probably the most complicated and difficult to understand unit on the entire engine. The appendixes are devoted to a compilation of appropriate mathematical formulas, a glossary of terms related to the gas turbine engine, and several pages of applicable conversion factors and tables.

ACKNOWLEDGMENTS 

The information contained in this book has been collected from a great number of sources. It represents the work of many people and organizations, without whose contributions this text could not have been completed. I wish to express my gratitude to the following organizations for their efforts in providing technical information, pictures, charts, tables, and other materials.