02076oam 2200517 450 991070491810332120131219153529.0(CKB)5470000002446568(OCoLC)865582005(EXLCZ)99547000000244656820131219d1987 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierDevelopment of rotorcraft interior noise control concepts phase III, development of noise control concepts /C.A. Yoerkie [and three others]Stratford, CTUnited Technologies Corporation, Sikorsky Aircraft Division ;Cambridge, MA :Cambrldge Collaborative, Inc. ;Hampton, Va. :National Aeronautics and Space Administration, Langley Research Center,[1987]1 online resource (x, 137 pages) illustrationsNASA contractor report ;178172Title from title screen (viewed on Dec. 19, 2013)."July 1987.""Performing organization ... Sikorsky Aircraft Division, United Technologies Corporation"--Technical report page.Includes bibliographical references (page 120).Development of rotorcraft interior noise control concepts Aircraft compartmentsnasatAircraft noisenasatHelicoptersnasatNoise prediction (aircraft)nasatNoise reductionnasatAircraft compartments.Aircraft noise.Helicopters.Noise prediction (aircraft)Noise reduction.Yoerkie C. A.1393208United Aircraft Corporation.Sikorsky Aircraft Division,Cambridge Collaborative, Inc.,Langley Research Center,GPOGPOGPOBOOK9910704918103321Development of rotorcraft interior noise control concepts3449058UNINA