Crankshaft, Curtiss OX-5 Engine

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    Crankshaft, Curtiss OX-5 Engine

    Type: Water-cooled, V-8 Take-off Power: 67 kw (90 hp) Weight: 175 kg (390 lb) Displacement: 8.3 liters (502.8 cu in) Specific Fuel Consumption: .270 kg/hp/hr (.60 lb/hp/hr) 5-main bearing crankshaft; complete with propeller thrust bearing.

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This object is on display in the Boeing Aviation Hangar at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Boeing Aviation Hangar

Curtiss OX-5

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, airplanes powered by the OX-5 engine were 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.