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Wind-tunnel Tests of Carburetor-intake Rams (1938)
NASA Technical Reports Server (NTRS) · leaf 9
Pig. 3 N.A.C.A. Technical Note Ho. 631 Figure 3,- External constant-area type, installed on the cowling of a radial air-cooled engine.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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