01730oam 2200469 450 991071672130332120210831132030.0(CKB)5470000002524966(OCoLC)1159597635(EXLCZ)99547000000252496620200623d1937 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierPerformance characteristics of venturi tubes used in aircraft for operating air-driven gyroscopic instruments /by Harcourt Sontag and Daniel P. JohnsonWashington, [D.C.] :National Advisory Committee for Aeronautics,1937.1 online resource (19 pages, 8 unnumbered pages) illustrationsTechnical note / National Advisory Committee for Aeronautics ;No. 624"November 1937."No Federal Depository Library Program (FDLP) item number.Includes bibliographical references (page 16).Venturi tubesTestingGyroscopic instrumentsGyroscopic instrumentsfastVenturi tubesTesting.Gyroscopic instruments.Gyroscopic instruments.Sontag Harcourt1395605Johnson Daniel P.United States.National Advisory Committee for Aeronautics,TRAALTRAALOCLCOTRAALOCLCFGPOBOOK9910716721303321Performance characteristics of venturi tubes used in aircraft for operating air-driven gyroscopic instruments3454404UNINA