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Technical Progress Shown in the 1927 Rhon Soaring-Flight Contest (1928)
NASA Technical Reports Server (NTRS) · leaf 13
N.A.C.A. Technical Memorandum No.471 Figs.2,3,4. … 10 .0 m. (32.81 ft.) 4J~ 5.5 m_ (18.04 ft.) 1 Figs.2,3,4. A training glider.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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