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Airplane Parachutes (1925)
NASA Technical Reports Server (NTRS) · leaf 90
N.A.C.A. Technical Memorandum No.322 Figs.l9,20&2; Fig.20 Ors parachute. Fig.22 Blanquier parachute.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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