Collection Item Summary:
More than 10,000 of these V-8 engines were manufactured, most of them for use in Curtiss JN-4 Jenny trainers. After World War I, thousands of OX-5s and Jennies were sold to the public at a fraction of their original cost to the government. In addition, during the 1920s, the OX-5 engine powered airplanes developed for civil aircraft by Waco, Laird, Curtiss, Fairchild, Alexander, Travel Air, and many other firms.
The availability of a well-proven, inexpensive engine in such quantity was a mixed blessing -- it allowed many people to fly who could not afford a more expensive engine, but manufacturers of more modern power plants suffered.
Collection Item Long Description:
Curtiss OX-5 V-8 Engine
National Air and Space Museum
Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum
- Curtiss Aeroplane and Motor Company
- Willys-Morrow Company (Curtiss)
Glenn H. Curtiss
On Loan from the War Department, Air Service, Washington, D.C.
Length 144.1 cm (56.75 in.), Width 75.6 cm (29.75 in.,) Height 93.3 cm (36.75 in.)
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National Air and Space Museum Collection
Country of Origin
United States of America
- Type: Reciprocating, water-cooled, V-8
- Power rating: 67 kW (90 hp) at 1,200 rpm
- Displacement: 8.3 L (502.8 cu in)
- Bore and Stroke: 102 mm (4 in.) x 127 mm (5 in.)
- Weight (dry): 145 kg (320 lb)
PROPULSION-Reciprocating & Rotary