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The High-speed Heinkel He 70 Mail Airplane (1934)

NASA Technical Reports Server (NTRS) · leaf 17

An illustration from The High-speed Heinkel He 70 Mail Airplane, 1934, leaf 17
4 Pigs. 3,5,6,7 'S.A.C.Xm Technical Uemorandum No# 746

NASA Technical Reports Server (NTRS)

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

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