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The Steady Spin (1931)

NASA Technical Reports Server (NTRS) · leaf 37

An illustration from The Steady Spin, 1931, leaf 37
U.A.C.A. (Technical Memorandum U0.63O Figs.29,30

NASA Technical Reports Server (NTRS)

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

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