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Considerations on propeller efficiency (1928)

NASA Technical Reports Server (NTRS) · leaf 24

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N.A.O.A* Technical Memorandiim 1^0'.481 Figs.9,11 & 12 … Evalua.tion of lift increment according to variation Fig.9 of induced drag ^^^c^^^ for example in Fig. 7. ^2 Z73 . I Fig,11 Generalized efficiency for the working point Pg, .2.0 1.5 AC 1 U.o— .0.5 0 1.0 ..8 .,6 .4 .2 Fig.12 Diagram of the generalized efficiency for the arrang- ement like Fig,3,

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