01547oam 2200469 450 991071673320332120210825132802.0(CKB)5470000002524846(OCoLC)1159597615(EXLCZ)99547000000252484620200623d1937 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe sonic altimeter for aircraft /by C.S. DraperWashington, [D.C.] :National Advisory Committee for Aeronautics,1937.1 online resource (98 pages, 23 unnumbered pages) illustrationsTechnical note / National Advisory Committee for Aeronautics ;No. 611"August 1937."No Federal Depository Library Program (FDLP) item number.Includes bibliographical references (pages 92-98).Aeronautical instrumentsAltimeterAeronautical instrumentsfastAltimeterfastAeronautical instruments.Altimeter.Aeronautical instruments.Altimeter.Draper C. S(Charles Stark),2864United States.National Advisory Committee for Aeronautics,TRAALTRAALOCLCOOCLCFGPOBOOK9910716733203321The sonic altimeter for aircraft3454213UNINA