01622nam 2200457 450 991070792100332120170216123157.0(CKB)5470000002469362(OCoLC)972737431(EXLCZ)99547000000246936220170216j201612 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierHelicopter acoustic flight test with altitude variation and maneuvers /Michael E. Watts [and four others]Hampton, Virginia :National Aeronautics and Space Administration, Langley Research Center,December 2016.1 online resource (364 pages) color illustrations.NASA/TM ;2016-219354"December 2016.""Performing organization: NASA Langley Research Center" Report documentation page.Includes bibliographical references (page 35).Acoustic measurementnasatAltitude testsnasatHelicoptersnasatNoise generatorsnasatNoise prediction (aircraft)nasatAcoustic measurement.Altitude tests.Helicopters.Noise generators.Noise prediction (aircraft)Watts Michael E.152766Langley Research Center,GPOGPOBOOK9910707921003321Helicopter acoustic flight test with altitude variation and maneuvers3488302UNINA