HAMILTON METALPLANE DIVISION OF BOEING |
USA |
Manufactured propellers and metal flying-boat hulls under subcontract in 1920s, before developing the all-metal, cantilever-winged Hamilton Metalplane in 1926. An airliner version followed in 1928, serving chiefly with Northwest Airways. Hamilton steel propellers were the company's major innovation before merging with Boeing and United Aircraft Corporation in late 1928.
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All the World's Rotorcraft |