Analogue methods for turbojet thrust instrumentation

MEASUREMENT of the thrust of a turbojet engine during flight presents a typical application of analogue techniques for automatic measurement, computation, and actuation. Effective operation of military aircraft requires instrumentation which includes an indication of engine performance. With the introduction of turbojet aircraft came the demand for instrumentation which involves measuring the engine´s thrust. However, the components of thrust are not directly measurable during flight. Therefore, thrust must be computed according to the thermodynamic parameters of engine operation.