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Effect of altitude on power of aviation engines (1924)
NASA Technical Reports Server (NTRS) · leaf 8
N.A.CiA. Technical Memorand\im Noi 287 Figs. 4 & 5 … Fig. 4 Altitude in meters QL.O 2000 4000 6000 0 Altitude in meters Fig. 5NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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