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Query:
engineering
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Higgins -- Twin Engine Cargo Airplane, Model 22-34, Performance Computations, July 3, 1943
Higgins -- Twin Engine Cargo Airplane, Model 34-38, Aerodynamics Report
Higgins -- Twin Engine Cargo Airplane, Model 35-44 Aerodynamics Report
Bellanca Aircraft Engineering Inc.
Patent 1,858,726, Airplane Engine Arrangements, May 17, 1932 [Four Motor Tandem -- Two Ban...
Patent 1,934,678, Airplane Motor Mounting, November 14, 1933 [Airbus Trimotor, Engines Bet...
Patent Application 459,744, Four Engines in Double Tandem, June 7, 1930, Abandoned
Engineering Division, Air Service, Handbook of Instructions for Aircraft Designers, Second...
"A Halifax" Four-Engined Bomber ...
British Engineering Feats No.1 the Forth Bridge Scotland ...
British Engineering Feats No.3 the Mettur Dam, India ...
British Engineering Feats No.4 the Assuan Dam Egypt ...
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