System is needed in isolating causes of performance deficiencies in airplane development program, determining accuracy of predictions of performance and of flight testing, etc; 2 methods under study are gas-generator method, by General Electric, and traversing-rake method, by Grumman Aircraft Engineering Corp; feasibility and accuracy of latter which samples pressures and temperatures through engine exhaust, were compared with gas-generator method in subsonic flight; results of first 8 runs show agreement within 1% gross thrust and 5% net thrust with rake as standard; rake promises developmental and research application bypassing extensive engine-test cell calibrations.
Measurement of net thrust in flight
J Aircraft
Journal of Aircraft ; 1 , n 3
1964
7 pages
Article (Journal)
English
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