Some fundamental considerations in regard to the use of power in landing an airplane

Diehl, Walter S (Bureau of Aeronautics, Navy Department)
naca-tn-692
March 1939


This note is concerned with the effect of power on landing speed and apparent maximum lift coefficient. It is shown that when secondary effects are neglected, the maximum available increase in lift due to power is equal to the thrust being developed. If the increase in lift due to power is expressed in coefficient form, very high values may be shown under conditions which, on analysis, are found to be wholly impracticable in flight.

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