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Wind-tunnel investigation of an N.A.C.A. 23012 airfoil with two arrangements of a wide-chord slotted flap (1939)

NASA Technical Reports Server (NTRS) · leaf 20

An illustration from Wind-tunnel investigation of an N.A.C.A. 23012 airfoil with two arrangements of a wide-chord slotted flap, 1939, leaf 20 — N.A.C.A. Technical Note No. 715 Fig. 3

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Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

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