Lycoming O-235

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A Lycoming O-235-C2C engine mounted in an American Aviation AA-1 Yankee light aircraft. Note the rather prominent pushrods.

The Lycoming O-235 is a family of four cylinder, air-cooled, horizontally-opposed piston aircraft engines that produce between 100 and 135 hp (75 to 100 kW). The engines are all carburetor-equipped, feature dual magneto ignition and have a displacement of 235 cubic inches (3.85 L).

Well known designs that use versions of the O-235 included the Cessna 152, Grumman American AA-1 series, Beechcraft Model 77 Skipper, Piper PA-38 Tomahawk and the Piper PA-22-108 Colt.

[edit] Specifications (O-235)

General characteristics

• Type: 4-cylinder air-cooled horizontally opposed piston aircraft engine
• Bore:
• Stroke:
• Displacement: 235 in³ (3.85 L)
• Dry weight:

Components

• Valvetrain: Pushrod-actuated valves
• Fuel system: Carburetor
• Cooling system: Air-cooled

Performance

• Power output: 108-118 hp
• Specific power: 0.57 hp/in³ (26.0 kW/L)
• Power-to-weight ratio:

[edit] External links

• Textron Lycoming - Manufacturer's home page
• Lycoming engines - an extensive list of every version of Lycoming's general aviation engines, including specifications