United States. National Advisory Committee for Aeronautics, United States. National Aeronautics and Space Administration · Washington : G.P.O. · leaf 506
get -Vs^C^^-.^O The last equation gives the important law of variation of the efficiency v of the enguie-propellersystem as function of the speed T^. Let us finally find the equation of the power of the engine-propeller system. We have J. _N il-hx) (Za)m■Lin — ■ 2.V„,= (l-x„)After corresponding… … 46^
Aeronautics
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