Hamilton Aircraft Co Inc

Hamilton Aircraft Co Inc overhauled surplus military aircraft for overseas disposal. Reworked ex-USAF North American T-28 trainers as Hamilton Nomair for civil and military customers. A Beech 18 conversion, the Hamilton Little Liner, superseded by turboprop Hamilton Westwind II and III, and a lengthened fuselage Westwind IV put under development but halted, by which time company had become Hamilton Aviation.

Hamilton Metalplane Division

Hamilton Metalplane Division of Boeing 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.