Beginning around 1922, J.F. Irwin’s Irwin Aircraft Company of Watsonville, California designed and provided blueprints for small, single seat sport aircraft which were supposedly simple enough for enthusiastic amateurs to build. In 1925, it introduced its Meteormotor. In 1926, it was improved by using copper instead of iron for cylinder cooling fins. Although classified as a radial, it was actually two opposed twins at ninety degrees to each other. This engine powered the Irwin M-T-2 and C-C-1 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
Date
ca. 1926
Country of Origin
United States of America
Type
PROPULSION-Reciprocating & Rotary
Manufacturer
Irwin Aircraft Company (Watsonville, California)
Physical Description
Type: Reciprocating, radial, 4 cylinders, x-configuration; 2-stroke cycle, air-cooled
Power rating: 14.9 kW (20 hp) at 2,000 rpm
Displacement: 1.18 L (72 cu. in.)
Bore and Stroke: 73 mm (2.875 in.) x 70 mm (2.75 in.)
Weight: 27 kg (60 lb)
Dimensions
Depth 101.6 cm (40 in.), Length 82.6 cm (32.5 in.), Width 65.4 cm (25.75 in.)
Materials
Steel, Aluminum, Rubber, Copper, Paint, Ceramic, Brass
Inventory Number
A19571001000
Credit Line
Gift of Preston Kirk
Data Source
National Air and Space Museum
Restrictions & Rights
Open Access (CCO)
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