A possible method for preventing the autorotation of airplane wings (1930)
NASA Technical Reports Server (NTRS) · leaf 8
Figs.4,5,6. N.A.C.A. Technical Memorandum No.569 •— a —+—d x—e 10° Fig.4 Results of autorotation tests. Curves (a) to (e) correspond to slot arrangements•in Figs.2a to 2e. Curve; (f) is for the smooth wing. Of the doubly plotted points one corresponds to left rotation and one to right rotation. The… … Fig.6 Wing polar as in Fig.5 Wing polar with and Fig.5 but with par- without slots. tition between slots inside Notation same as in Fig..4. the wing.
NASA Technical Reports Server (NTRS)
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