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The Breda 32 commercial airplane (Italian) : a three-engine all-metal low-wing monoplane (1932)
NASA Technical Reports Server (NTRS) · leaf 12
.A.C.A. Aircraft Circular No.166 Figs.11,12NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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