01643oam 2200481I 450 991071284390332120200131092737.0(CKB)5470000002497745(OCoLC)1107323705(EXLCZ)99547000000249774520190703d1921 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe optical wing aligning device of the Langley Field tunnel /by F.H. Norton and D.L. Bacon[Washington, D.C.] :National Advisory Committee for Aeronautics,1921.1 online resource (3 pages, 2 unnumbered pages) illustrationsTechnical notes / National Advisory Committee for Aeronautics ;No. 35"January, 1921."No Federal Depository Library Program (FDLP) item number.Wind tunnelsAir flowMeasurementAir flowMeasurementfastWind tunnelsfastLangley Air Force Base (Va.)Wind tunnels.Air flowMeasurement.Air flowMeasurement.Wind tunnels.Norton F. H(Frederick Harwood),1896-1992,18769Bacon D. L.United States.National Advisory Committee for Aeronautics,TRAALTRAALOCLCOOCLCFGPOBOOK9910712843903321The optical wing aligning device of the Langley Field tunnel3513440UNINA