Curtiss Model K (engine)

This article is about the aero engine. For the 1915 flying boat, see Curtiss Model K (aircraft).

Model K

Curtiss Model K aircraft engine on display at the Steven F. Udvar-Hazy Center
Type	Piston aero engine
National origin	United States
Manufacturer	Curtiss Aeroplane and Motor Company
Designed by	Glenn H. Curtiss
Major applications	Curtiss Model D

The Curtiss Model K was an early aircraft piston engine with four inline cylinders.

"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."

Specifications

General characteristics

Type: 4-cylinder, liquid-cooled inline piston aircraft engine
Displacement: 251 cubic inches (4.1 l)
Length: 20 inches (508 mm)
Width: 12 inches (305 mm)
Height: 30.5 inches (770 mm)
Dry weight: 175 pounds (79.4 kg)

Components

Cooling system: liquid-cooled

Performance

Power output: 40 horsepower (30 kW) at 1500 rpm

Notes

References

This article contains material that originally came from the placard at the Steven F. Udvar-Hazy Center.

External links

"In-line 4, Curtiss Model K". Smithsonian National Air and Space Museum. Retrieved 1 January 2011.

Curtiss aircraft engines

Piston engines	A-2 B-8 C-6 Challenger D-12 H-1640 K-12 Model K OX-5 OXX R-600 V-1570 V-2

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