Figsil,2 & 3 N.A.CL.A. Teclinioal Memoranduln No.481 Frcipeller Pig.l Propeller arrangement producing maximijm mutual interference between propeller and veiiicle. Screen Propeller ni V2 j:^ V3 . —j_ Fig.2 Propeller arrangement in which the energy expended on the vehicle (screen) is partially…
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