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Curtiss Model K, In-line 4 Engine

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Display Status:

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

Collection Item Summary:

Curtiss Model K

Among the most successful early engines marketed in the United States were those designed and built by aviation pioneer and inventor Glenn Curtiss in his factory in Hammondsport, New York. Curtiss introduced the Model K in 1911. This engine was an enlarged and improved version of an earlier Curtiss in-line air- and water-cooled power plant. Each cylinder in the engine had a single push rod and rocker arm, which operated the inlet and exhaust valves.

The Model K powered the Curtiss Type D pusher airplane, the U.S. Army’s second aircraft after the 1909 Wright Military Flyer.

Type:reciprocating, 4 cylinders, in-line, water cooled

Power rating:30 kW (40 hp) at 1,500 rpm

Displacement:4.1 L (251 cu in)

Weight:79.5 kg (175 lb)

Manufacturer:Curtiss Airplane and Motor Co., Hammondsport, N.Y.

A19660008000

Collection Item Long Description:

Data Source

National Air and Space Museum

Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum

Manufacturer

Curtiss Aeroplane and Motor Company

Designer

Glenn H. Curtiss

Credit Line

Found in the collection.

Dimensions

Length 50.8 cm (20.0 in.), Width 30.5 cm (12.0 in.), Height 77.5 cm (30.5 in.)

See more items in

National Air and Space Museum Collection

Country of Origin

United States of America

Date

1912

Physical Description

  • Type: Reciprocating, in-line, 4 cylinders, water cooled
  • Power rating: 30 kW (40 hp) at 1,500 rpm
  • Displacement: 4.1 L (251 cu in.)
  • Bore and Stroke: 102 mm (4 in.) x 127 mm (5 in.)
  • Weight: 79.5 kg (175 lb)

Type

PROPULSION-Reciprocating & Rotary

Inventory Number

A19660008000