01805oam 2200505 a 450 991070210770332120121009093529.0(CKB)5470000002425066(OCoLC)812261788(EXLCZ)99547000000242506620121009d1986 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierModifications to the 4 x 7 meter tunnel for acoustic research[electronic resource] engineering feasibility studyOrlando, Fla. :DSMA Engineering Corporation;Hampton, Va. :National Aeronautics and Space Administration, Langley Research Center,[1986]1 online resource (vii, 77 pages) illustrationsNASA contractor report ;178079Title from title screen (viewed Oct. 9, 2012)."March 1986."Includes bibliographical references (page 44).Modifications to the 4 x 7 meter tunnel for acoustic research Acoustic measurementnasatAeroacousticsnasatDesign analysisnasatLow speed wind tunnelsnasatWind tunnel drivesnasatWind tunnel testsnasatAcoustic measurement.Aeroacoustics.Design analysis.Low speed wind tunnels.Wind tunnel drives.Wind tunnel tests.Langley Research Center.DSMA Engineering Corporation.GPOGPOGPOBOOK9910702107703321Modifications to the 4 x 7 meter tunnel for acoustic research3548757UNINA