H.A.C.A. Technical Memorandum Mo.485 Figs.l & 2 Igoj ^9Q° Wangle ^ 4000 -70 60 -Weight of airplane 0 5 10 15 20 25 30 Angle of attack Fig.l The aerodynamic lift,at different speeds and wing angles,of an airplane which stalls at 50 miles per hour,(Numbers on curves show speed in miles per hour).… … FigiS- Controls fixed. The unstable rolling turn.
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