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Curtiss 0X-5 V-8

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


Among the most successful early engines marketed in the United States were those designed and built by aviation pioneer and inventor Glenn Curtiss. Curtiss manufactured more than 10,000 OX-5s during World War I, mostly for Curtiss JN-4 Jenny military trainers. After the war, the U.S. government sold thousands of surplus OX-5s and Jennys to the public at a fraction of their original cost. Availability of a well-proven, inexpensive engine in such quantity was a mixed blessing. It enabled many people of modest means to fly, but manufacturers of more modern power plants suffered.

The OX-5 was a mainstay for barnstormers, private pilots, and aircraft designers in the United States in the 1920s and '30s. Besides the Jenny, the OX-5 also powered many new civil aircraft manufactured by Alexander, Curtiss, Fairchild, Laird, Travel Air, Waco, and others. This OX-5 was removed from a Curtiss JN-4D that suffered a landing accident near Greensboro, North Carolina, about 1921.

Gift of Wesley Tallent.

Manufacturer: Curtiss Aeroplane and Motor Company

Designer: Glenn H. Curtiss

Date: 1910

Country of Origin: United States of America

Dimensions: Length 144.1 cm (56.75 in.), Width 75.6 cm (29.75 in.), Height 93.3 cm (36.75 in.)

Physical Description:Type: Reciprocating, V-type, 8 cylinders, liquid cooled Power rating: 67 kW (90 hp) at 1,200 rpm Displacement: 8.3 L (503 cu in) Bore and Stroke: 102 mm (4 in.) x 127 mm (5 in.) Weight: 177 kg (390 lb)

Inventory number: A19810723000

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