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Ground-cooling and Flight Tests of an Airplane Equipped with a Nose-blower Engine Cowling (1939)
NASA Technical Reports Server (NTRS) · leaf 20

NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
More pictures from Ground-cooling and Flight Tests of an Airplane Equipped with a Nose-blower Engine Cowling
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