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Lycoming O-290

The Engine  Specifications
Introduced in 1942, the O-290 was a four-cylinder version of the six-cylinder O-435.  The engine was also developed as a ground power unit (GPU).
Horizontally opposed, 4 cylinder, piston engine
Displacement: 289 cubic inches
(4.7 liters)
Bore x stroke: 4.875 x 3.875 inches
 Models  Used by
O-290: 125 hp (93 kW)
Piper PA-23 prototype
Thorp T-18
 Related Pages
More about Lycoming

page updated 15 June 2005



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Kenneth W Shanaberger 2000 - 2010