The Lycoming O-360 is a family of

four-cylinder The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorize ...

, direct-drive,

horizontally opposed A flat engine is a piston engine where the cylinders are located on either side of a central crankshaft. Flat engines are also known as horizontally opposed engines, however this is distinct from the less common opposed-piston engine design, wh ...

, air-cooled,

piston A piston is a component of reciprocating engines, reciprocating pumps, gas compressors, hydraulic cylinders and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tig ...

aircraft engine An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many ...

s. Engines in the O-360 series produce between 145 and 225 horsepower (109 to 168 kW), with the basic O-360 producing 180 horsepower. 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 The Lycoming IO-390 engine is a horizontally opposed, four-cylinder aircraft engine, manufactured by Lycoming Engines. There is no carburetted version of the engine, which would have been designated O-390 and therefore the base model is the ...

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 Bore or Bores often refer to: *Boredom * Drill Relating to holes * Boring (manufacturing), a machining process that enlarges a hole ** Bore (engine), the diameter of a cylinder in a piston engine or a steam locomotive ** Bore (wind instruments), ...

and

stroke A stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functionin ...

. * 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 In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pro ...

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 Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights. The term is a portmanteau of "aerial" and "acrobatics". Aerobatics are performed in aeroplanes and glid ...

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 LIO360engine

* Piper PA-34 Seneca I * Diamond DA42 ;AIO-360 *

Stephens Akro Stephens is a surname. It is a patronymic and is recorded in England from 1086. Notable people with the surname include: *Alexander H. Stephens (1812–1883), Vice President of the Confederate States of America *Alison Stephens (1970–2010), Brit ...

;AEIO-360 *

Aero-Cam Slick 360 The Slick Aircraft Slick 360 is a South African aerobatics aircraft produced by the Slick Aircraft Company of Pretoria, South Africa. It is designed exclusively as an aerobatic competition aircraft, to compete in events such as the Advanced World ...

* Aviat Eagle II * American Champion Super Decathlon * Extra EA-200 * FFA AS-202 Bravo * Great Lakes Sport Trainer *

Grob G 115E The Grob G 115 is a general aviation fixed-wing aircraft, primarily used for flight training. It is built in Germany by Grob Aircraft (Grob Aerospace before January 2009). The E variant with a 3-blade variable pitch propeller is in service with ...

* Mudry CAP 10 *

Peña Capeña The Peña Capeña is a French aerobatic amateur-built aircraft that was designed by competitive aerobatic pilot Louis Peña of Dax, Landes and made available in the form of plans for amateur construction.Bayerl, Robby; Martin Berkemeier; et al ...

* 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 The Silvercraft SH-4 is an Italian three-seater light helicopter designed and built by Silvercraft SpA. Design and production The Silvercraft SH-4 was the first Italian designed helicopter to gain Italian and FAA certification. The prototype was ...

Specifications (O-360-A1A)

References

External links