01537oam 2200481 450 991071406000332120201110105419.0(CKB)5470000002507046(OCoLC)761222097(EXLCZ)99547000000250704620111115j196810 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierA hovering investigation of an extremely flexible lifting rotor /by Matthew M. WinstonWashington, D.C. :National Aeronautics and Space Administration,October 1968.1 online resource (52 pages) illustrationsNASA technical note ;NASA TN D-4820"October 1968."Includes bibliographical references (page 9).Rotors (Helicopters)HelicoptersHelicoptersfastRotors (Helicopters)fastRotors (Helicopters)Helicopters.Helicopters.Rotors (Helicopters)Winston Matthew M.1408880United States.National Aeronautics and Space Administration,Langley Research Center.OCLCEOCLCEOCLCQOCLCFOCLCQGPOBOOK9910714060003321A hovering investigation of an extremely flexible lifting rotor3493948UNINA