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Wing-Nacelle-Propeller Tests - Comparative Tests of Liquid-Cooled and Air-Cooled Engine Nacelles (1934)
NASA Technical Reports Server (NTRS) · leaf 15
U.A.C.A. cowling … Sogine in wing, extension shaft Wing-nacelle combinations mounted for testsNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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