Show invention aid airmen ana mean deflect Sou Sou lou liquid manometer camera result Achl among low load per plane air slid slid end wind tunnel method method horizontal tall surface inside tube surface led face multiple liquid manometer several ut manometer pressure pr cure hen change speed air pressure mi cam en en trot height mire inc important load load loud ion lure lure sure lure sure guru mi average air pressure certain sur TELLS RESULTS RESULTS ACHIEVED tall sur different point sod sod bud norton engineer memorial laboratory held virginia device prove value science ATO washington us manti meter instrument air ft under department order deter distribution pressure pr horizontal till till tall till tall tail airplane liquid 14 tim tube every few ice ice gee urea impossible liquid titan tonal advisory committee aeronautic taken laboratory navy study piano trig steady flight small square foot foot root usual tall tall tail Tres tall 1111 00 large ire Inc force complete manometer pressure distribution sent army study ascertain ascertain certain pressure way cause failure win taken tall face face race same peed peed speed effort learn learn team several accident occurred where add engineer laboratory laboratory field contemplate dayton ohio further experiment army langley cause ed air service wing |