Artificial production of localized stalled region accomplished by means of sharp leading edge extending few inches along span; drop in total pressure causes contraction of pressure cell to which total head tube and static orifice are connected and closes electric circuit that actuates warning signal.
N.A.C.A. Stall-warning indicator
Nat Advisory Committee Aeronautics -- Tech Note
1938
8 pages
6 Supp sheets
Report
Englisch
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N.A.C.A. Stall-warning indicator
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