Free-autorotation tests, forced-rotation tests, and lift and drag tests on modified Clark Y airfoils in 7 by 10 ft wind tunnel; check tests on lift and drag characteristics at several values of Reynolds Number in variable-density with tunnel; flight and wind-tunnel tests show that use of sharp leading edges is accompanied by reduction in lift.
Effect on lift, drag, and spinning characteristics of sharp leading edges on airplane wings
Nat Advisory-Committee Aeronautics -- Tech Note
1933
15 pages
9 Supp sheets
Report
Englisch
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