01474oam 2200457 450 991071592780332120210420103221.0(CKB)5470000002516819(OCoLC)1145759774(EXLCZ)99547000000251681920200323d1934 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierLanding-shock recorder /by M.J. BrevoortWashington, [D.C]. :National Advisory Committee for Aeronautics,1934.1 online resource (8 pages, 5 unnumbered pages) illustrationsTechnical note / National Advisory Committee for Aeronautics ;No. 501"July 1934."No Federal Depository Library Program (FDLP) item number.AirplanesLandingSeismometersMeasuring instrumentsAirplanesLandingfastAirplanesLanding.Seismometers.Measuring instruments.AirplanesLanding.Brevoort M. J(Maurice John),1900-1979,1387123United States.National Advisory Committee for Aeronautics,TRAALTRAALOCLCOOCLCFGPOBOOK9910715927803321Landing-shock recorder3533653UNINA