01489oam 2200385 450 991071297750332120200612082924.0(CKB)5470000002498415(OCoLC)1107323823(EXLCZ)99547000000249841520190703d1922 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierLangley Field wind tunnel apparatusPart IRegulators for speed of wind tunnel drive motorPart IIA Vernier manometer with adjustable sensitivity /by D.L. Bacon[Washington, D.C.] :National Advisory Committee for Aeronautics,1922.1 online resource (9 pages, 2 unnumbered pages) illustrationsTechnical notes / National Advisory Committee for Aeronautics ;No. 81"January, 1922."No Federal Depository Library Program (FDLP) item number.Part I. Regulators for speed of wind tunnel drive motor -- Part II. A Vernier manometer with adjustable sensitivity.Wind tunnelsTestingWind tunnelsTesting.Bacon D. L.1392833United States.National Advisory Committee for Aeronautics,TRAALTRAALOCLCOGPOBOOK9910712977503321Langley Field wind tunnel apparatus3457769UNINA