Three-place open-cockpit biplane powered with Wright 200-hp. engine; wood and metal wings; steel-tube fuselage; all-steel tail surfaces; upper wing span 34 ft.; 130 m.p.h. maximum speed; 42 m.p.h. landing speed. (see also West. Flying, vol. 6, no. 2, Aug. 1929, p. 74, 1 fig)
Butler black hawk biplane
Airway Age
Airway Age ; 10 , n 4
1929
1 Fig.
Article (Journal)
English
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