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Tests of N-85, N-86 and N-87 airfoil sections in the 11-inch high speed wind tunnel (1938)
NASA Technical Reports Server (NTRS) · leaf 8
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
More pictures from Tests of N-85, N-86 and N-87 airfoil sections in the 11-inch high speed wind tunnel
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