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The Schneider Trophy Contest (1933)
NASA Technical Reports Server (NTRS) · leaf 37
Max. horizontal speed. ^ Figure Z.~ Speed of racing planes, 1913 - 1931. (The figures from 1 to 37 refer to the running numbers in table II.)NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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