01790oam 2200481 450 991071284990332120200130103724.0(CKB)5470000002497684(OCoLC)1105632408(EXLCZ)99547000000249768420190625d1920 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierDevelopment of the inflow theory of the propeller /by A. Betz[Washington, D.C.] :National Advisory Committee for Aeronautics,1920.1 online resource (4 pages, 2 unnumbered pages) illustrationsTechnical notes / National Advisory Committee for Aeronautics ;No. 24"November, 1920.""Resumé translated from the German by Paris Office, N.A.C.A.""Zeitschrift für Flugtechnik und Motorluftschiffahrt" [Journal of aviation engineering and motorized-airship aeronautics]--Page 1.No Federal Depository Library Program (FDLP) item number.Air flowMathematical modelsPropellers, AerialAir flowMathematical modelsfastPropellers, AerialfastAir flowMathematical models.Propellers, Aerial.Air flowMathematical models.Propellers, Aerial.Betz Albert1885-1965,4635United States.National Advisory Committee for Aeronautics,TRAALTRAALTRAALOCLCOGPOBOOK9910712849903321Development of the inflow theory of the propeller3541172UNINA