01819oam 2200541Ia 450 991070194220332120120724151220.0(CKB)5470000002422697(OCoLC)801538661(OCoLC)865558304(EXLCZ)99547000000242269720120724d1983 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierTurbofan aft duct suppressor study[electronic resource] contractor's data report of mode probe signal data /G. H. Fiske ... [and others][Cleveland, Ohio] :National Aeronautics and Space Administration, Lewis Research Center,[1983?]1 online resource (72 pages) illustrationsNASA CR ;175067Title from title screen (viewed on July 24, 2012).Includes bibliographical references (pages 165-167).Turbofan aft duct suppressor study Annular ductsnasatEngine noisenasatNoise measurementnasatNoise prediction (aircraft)nasatNoise reductionnasatSound propagationnasatTurbofan enginesnasatAnnular ducts.Engine noise.Noise measurement.Noise prediction (aircraft)Noise reduction.Sound propagation.Turbofan engines.Syed A. A.1406754Fiske G. H1406755Lewis Research Center.GPOGPOGPOBOOK9910701942203321Turbofan aft duct suppressor study3486433UNINA