Accurate Power Checking of Production Aircraft Engines 650377
To assure the rated horsepower output of production engines, Lycoming has been accurately power checking every tenth engine of each model. The principle and calibration of the hydraulic torquemeter, for use with the geared engines, are briefly discussed. The development of an electronic print-out system, of speed and torque, was conducted for power checking direct drive engines. The development of the electronic system is discussed in detail.