The Bleriot 137 military airplane (French) : a twin-engine multiplace monoplane (1932)
NASA Technical Reports Server (NTRS) · leaf 8
bs. Each plate (B,B') Fig.5 Main section of wing, rib covers the space between a main flanges; c,braces; g, gussets by heavy lines. '^l- *ube holding Ni, B and B are joined by a fishplate* Fig.9 Evolution of the profile along the span. Fig.7 Vertical end and side views of spar. A, openwork web… … edge. Fig.10 Wing structure. On vertical stiffener of rear spar, note stud for centering the trailing edge* Fig. 12 Inside view of leading edge of wing, with formers* Fig.13 Aileron. Note U at rear edge, in which pivots the balancing flap shown in Fig.33. Taken from LlAeronouticfUB
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