Investigation for improving flow conditions about wings by applying suction principle, namely, increased lift coefficient and reduced drag about very thick wing sections; wings hitherto considered unfit for use in airplane construction, owing to thickness and angle of attack, were so far improved by suction as to become technically usable; all accurate methods of measurement failed when applied to non-lifting flow about symmetrical thick sections. From Luftfahrtforschung, June 11, 1928.
Experiments with a wing model from which the boundary is removed by suction
Nat. Advisory Committee Aeronautics -- Tech. Mem
1929
31 pages
31 Supp., Figs.
Report
English
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