1970-02-01

Jet Engine Control Systems - Their Evolution, Future Requirements and Potential Limitations 700825

The evolution of Pratt & Whitney Aircraft turbojet and turbofan engine control systems is reviewed to provide an understanding of their ability to handle the increasing number of variables being incorporated in modern engines, as well as their potential limitations in this respect. Future engine designs are expected to require more precise control of even more engine operating variables such as inlet guide vane angle, and jet, turbine vane, and duct nozzle areas. To provide pilots with the degree of automation consistent with today's technology, the use of an overall power management system separate from the engine control is foreseen.

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