The Lycoming O-360 is a family of four-cylinder, direct-drive, horizontally opposed, air-cooled, piston aircraft engines. Engines in the O-360 series produce between , with the basic O-360 producing .

The engine family has been installed in thousands of aircraft, including the Cessna 172, Piper Cherokee/Archer, Grumman Tiger, and many home-built types. It has a factory rated time between overhaul (TBO) of 2000 hours or twelve years. O-360 family engines are also widely used in airboats, most notably in the Hurricane Aircats used by the US Army during the Vietnam War.

The first O-360 certified was the A1A model, certified on 20 July 1955 to United States CAR 13 effective March 5, 1952 as amended by 13-1 and 13-2. The Lycoming IO-390 is an O-360 which has had its cylinder bore increased by , developing .

Series The O-360 family of engines comprises 167 different models with 12 different prefixes. All have a displacement and bore and stroke.

O-360 carbureted series HO-360 horizontally mounted series for helicopter installation LO-360 same as O-360, but with left-hand rotating crankshaft, for use in pairs on twin-engined aircraft TO-360 turbocharged series LTO-360 turbocharged left-hand rotation series IO-360 fuel-injected series LIO-360 same as IO-360, but with left-hand rotating crankshaft AIO-360 inverted mount (dry sump aerobatic) fuel-injected series AEIO-360 aerobatic fuel-injected series HIO-360 horizontally mounted fuel-injected series for helicopters LHIO-360 left-hand rotation, fuel-injected, horizontally mounted for helicopters TIO-360 turbocharged and fuel-injected series

Variants

Applications

O-360

LO-360 Beechcraft Duchess Piper PA-44-180 Seminole IO-360

LIO-360

Piper PA-34 Seneca I Diamond DA42 AIO-360 Stephens Akro AEIO-360 Aero-Cam Slick 360 Aviat Eagle II American Champion Super Decathlon Extra EA-200 FFA AS-202 Bravo Great Lakes Sport Trainer Grob G 115E Mudry CAP 10 Peña Capeña Pitts Special Tech Aero TR 200 Valmet L-70 Vinka Zlín Z 242 HIO-360 Enstrom F-28 OH-23 Raven Schweizer 300 LHIO-360 Silvercraft SH-3 Silvercraft SH-4

Specifications (O-360-A1A)

See also

References

External links

Lycoming Homepage