The Lycoming O-235 is a family of four-cylinder, air-cooled, horizontally opposed, piston aircraft engines that produce 100 to 135 hp, derived from the earlier O-233 engine. 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, American Champion Citabria, Piper Clipper, and the Piper PA-22-108 Colt.

Development

The engines are all carburetor-equipped, feature dual magneto ignition and have a displacement of 233 cubic inches (3.82 L). The first O-235 model was certified on 11 February 1942. The O-235 was developed into the lighter-weight Lycoming IO-233 engine for light sport aircraft.

Variants

Applications

• Aero Boero AB-115 • AMD Alarus • ARV Griffin • AESL Airtourer • Beechcraft Model 77 Skipper • Bushcaddy R-120 • CEA DR-221 • Cessna 152 • Criquet Storch • Falconar F11 Sporty • Fisher Celebrity • Grob G 115 • Grumman American AA-1 • Kelly-D • Lucas L-6A • Lucas L-6B • Lucas L7 • Murphy Elite • Murphy Rebel • Nexaer LS1 • Piel Emeraude • Peña Joker • Piper PA-12 Super Cruiser • Piper PA-16 Clipper • Piper PA-18 Super Cub • Piper PA-22-108 Colt • Piper PA-29 Papoose • Piper PA-38 Tomahawk • Preceptor STOL King • Robin DR.221 Dauphin • Robin R3000 • Rutan Long-EZ • Socata Rallye 110ST • Smith Miniplane • Stern ST 87 Vega • Storm Sea Storm • Tri-R KIS TR-1 • Van's Aircraft RV-9 • Varga 2150 Kachina • W.A.R. Focke-Wulf 190

Specifications (O-235-C2C)