The Jet engine

This book has been written to provide a simple and self-contained description of the working and underlying principles of the aero gas turbine engine. The use of complex formulae and the language of the specialist have been avoided to allow for a clear and concise presentation of the essential facts. Only such description and formulae, therefore, as are necessary to the understanding of the function and the theory of the engine are included. It will be noted that the emphasis in this book is on the turbo-jet engine and that no special part deals with the propeller-turbine engine. This is because the working principles of both engine types are essentially the same. However, where differences in function or application do exist, these are described. The aero gas turbine engine is being continually developed to provide improved performance for each new generation of aircraft; the fourth edition of this book has been revised and expanded to include the latest aero gas turbine engine technology. Contents Basic mechanics Working cycle and airflow Compressors Combustion chambers Turbines Exhaust system Accessory drives Lubrication Internal air system Fuel system Starting and ignition Controls and instrumentation Ice protection Fire protection Thrust reversal Afterburning Water injection Vertical/short take-off and landing Noise suppression Thrust distribution Performance Manufacture Power plant installation Maintenance Overhaul Appendix 1; Conversion factors