The S.A.B.C.A. "S.XI" commercial airplane (Belgian) : a high-wing semicantilever monoplane
A 1932 NACA technical report, issued by NASA's Technical Reports Server, describing the Belgian S.A.B.C.A. S.XI, a high-wing semicantilever monoplane commercial airplane. The pictures are plain line drawings of side, front and plan views with dimensions, plus two photographs of the aircraft on the ground, giving a designer clean technical views of an early twin-engine airliner's profile and proportions.
