"Four-cylinder, horizontally opposed piston engine"@en . . . . . . "3549"^^ . . . . . . . . . "Air-cooled"@en . . "1056214761"^^ . . . . . . "1940"^^ . . "1940"^^ . . . . . . "TCDS"@en . . "*List of aircraft engines"@en . . . . . . . . . . . . . . . . . . "106"^^ . . . "The Lycoming O-233 is a four-cylinder, air-cooled, horizontally opposed piston aircraft engine that was built by Lycoming Engines between 1940 and 1944."@en . . . "22283332"^^ . . "Lycoming O-233"@en . "The Lycoming O-233 is a four-cylinder, air-cooled, horizontally opposed piston aircraft engine that was built by Lycoming Engines between 1940 and 1944."@en . . .