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The S.A.B.C.A. "S.XI" commercial airplane (Belgian) : a high-wing semicantilever monoplane (1932)
NASA Technical Reports Server (NTRS) · leaf 5
NiA.C.A* Aircraft Circular No. 160 … (1041.95 sq.ft.) Three 420 hp engines. Pig.l General arrangement drawing of the S.A.B.C.A. S XI airplane.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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