Lycoming O-290

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The Lycoming O-290 was a four-cylinder, air-cooled, horzontally-opposed aircraft engine. It was first run in 1939, and entered production three years later. Many of these engines were built as Ground Power Units.

[edit] Specifications

• Bore: 4.875 in (124 mm)
• Stroke: 3.875 in (98 mm)
• Displacement: 289.3 cu in (4.74 L)
• Power: 125-135 hp (93-101 kW) @ 2,450-2,600 rpm

[edit] Applications

• Adkisson SJ-1 Head Skinner
• Aerocar
• Aero Commander 100
• Aquaflight Aqua I
• Chrislea Super Ace
• Isaacs Fury Mk 1
• Piper PA-20 Pacer
• Thorp T-18

[edit] References

• Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. 
• Horizontally-Opposed Aero Engines

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