01237nam0-2200349---450-99000876800040332120081128142533.00486646475000876800FED01000876800(Aleph)000876800FED0100087680020081128d1984----km-y0itay50------baengUSy-------001yyRotary-wing aerodynamicsW. Z. Stepniewski, C. N. KeysNew YorkDover19841 v. (varie sequenze)ill.24 cmDover books on engineeringEd. inalterata in unico volume dell'ed. Science and technical information office of the National aeronautics and space administration, 1981, originalmente pubblicata in due volumiContiene: Basic theories of rotor aerodynamics / by W. Z. Spepniewski . Performance prediction of helicopters / by C. N. Keys629.132'311 rid.itaStepniewski,W. Z504131Keys,C. N504132ITUNINARICAUNIMARCBK990008768000403321H43155DINPADINPARotary-wing aerodynamics810833UNINA