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The Twenty-Foot Propeller Research Tunnel of the National Advisory Committee for Aeronautics (1929)

NASA Technical Reports Server (NTRS) · leaf 8

An illustration from The Twenty-Foot Propeller Research Tunnel of the National Advisory Committee for Aeronautics, 1929, leaf 8
Fig. 6

NASA Technical Reports Server (NTRS)

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

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