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Thomas F. Hamilton, born in 1894, had a long history in aviation, including hot-air balloons, gliders, and seaplanes. When the Matthews Brothers Manufacturing Company of Milwaukee, Wisconsin, primarily a producer of furniture, sought to enter the wood propeller business during World War I, it hired Hamilton in 1917 as general manager of its aircraft department. He bought the propeller business from Matthews in 1919 and formed the Hamilton Aero Manufacturing Company, later becoming a secondary source to the United States government for the ground-adjustable propeller pioneered by Standard Steel.

William E. Boeing, one of the founders of the United Aircraft and Transport Corporation, enticed Hamilton to join UATC. With the later acquisition of Standard Steel, the Hamilton Standard Propeller Corp. was formed in 1929.

This propeller was initially installed on a Boeing XPB-2 aircraft.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type PROPULSION-Propellers & Impellers Manufacturer Hamilton Aero Manufacturing Co.
 Physical Description Type: Three-Blade, Ground-Adjustable, Metal Diameter: Unknown Chord: Unknown Engine Application: Pratt & Whitney geared Hornet - R-1690-G w/ 2:1 reduction Dimensions 3-D (Blades, each (2)): 156.2 × 30.5 × 15.2cm, 31.3kg (5 ft. 1 1/2 in. × 1 ft. × 6 in., 69lb.)
3-D (Blade with attached hub): 175.3 × 35.6 × 17.8cm, 49.4kg (5 ft. 9 in. × 1 ft. 2 in. × 7 in., 109lb.)
3-D (Round Piece): 8.9 × 8.9 × 5.1cm, 0.5kg (3 1/2 × 3 1/2 × 2 in., 1lb.)
3-D (Half Round Pieces (2)): 10.2 × 5.1 × 3.5cm, 0.2kg (4 × 2 × 1 3/8 in., 0.5lb.)
Storage (Aluminum Pallet): 156.2 × 30.5 × 12.7cm, 179.2kg (5 ft. 1 1/2 in. × 1 ft. × 5 in., 395lb.)
 Materials HAZMAT: Cadmium
Aluminum alloy, Paint, Preservative coating, Steel, Cadmium plating
 Inventory Number A19690125000 Credit Line Found in collection. Donor unknown at this time. Found on NASM premises. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
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