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Lycoming O-360


Lycoming IO-360-A1B6


 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 145 and 225 horsepower (109 to 168 kW), with the basic O-360 producing 180.
The engine family been installed in thousands of aircraft, including the Cessna 172, Piper Cherokee/Archer, Grumman Tiger, and many home-built craft. It has a factory rated time between overhaul (TBO) of 2000 hours or twelve years.
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 3⁄16 inches, developing 210 hp (157 kW).  

The O-360 family of engines comprise 167 different models with 12 different prefixes. All have a 361 cubic inch (5.9 liters) displacement and 5.125" and 4.375" (130 and 111 mm) bore and stroke.

O-360 carbureted series
HO-360 vertically 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 fuel-injected series
AEIO-360 aerobatic fuel-injected series
HIO-360 vertically mounted fuel-injected series for helicopters
LHIO-360 left-hand rotation, fuel-injected, vertically-mounted for helicopters
TIO-360 turbocharged and fuel-injected series


Aer Lualdi L.55
Aero Boero AB-180
Aero Commander Lark Commander
Aero Concepts Discovery
American Aviation AA-2 Patriot
Australian Lightwing SP-4000 Speed
Aviamilano Nibbio
Aviat Husky A-1C-180
Backcountry Super Cubs Mackey SQ2
Backcountry Super Cubs Supercruiser
Backcountry Super Cubs Super Cub
Barrows Bearhawk
Barrows Bearhawk Patrol
Beagle Airedale
Beechcraft Duchess
Beechcraft Musketeer
Beechcraft Travel Air
Bölkow Bo 207
Bushcaddy L-162 Max
Bushcaddy L-164
Canadian Home Rotors Safari
Cessna 172
Cessna 177
CubCrafters Carbon Cub EX
Dakota Cub Super 18
Diamond DA40
Dyn'Aéro MCR R180
Falconar F12A Cruiser
Glasair GlaStar
Grinvalds Orion
Grob G 115
Grumman American AA-5
Guimbal Cabri G2
Lambert Mission 212
Lancair 360
Lucas L8
Maule M-5
Mooney M20
Moynet 360-4 Jupiter
Murphy Elite
Mustang Aeronautics Mustang II
Norman Dube Aerocruiser Plus
PAC MFI-17 Mushshak
Peña Bilouis
Peña Dahu
Peña Joker
Piper PA-18 Super Cub
Piper Cherokee 180
Piper PA-24-180 Comanche
Piper PA-44-180 Seminole
Robin Aiglon
Robinson R22
Saab 91 Safir
Schweizer SGM 2-37
Slepcev Storch
Stoddard-Hamilton Glasair II
Van's Aircraft RV-6
Van's Aircraft RV-7
Van's Aircraft RV-8
VTOL Aircraft Phillicopter
Wassmer WA-54 Atlantic
Zenair CH 640
Zenith STOL CH 801


Beechcraft Duchess
Piper PA-44-180 Seminole


AeroCad AeroCanard
Australian Lightwing SP-6000
Aviat Husky A-1C-200
Beechcraft Musketeer Super III
Cessna 172R/172S
Cessna 177RG
Cessna 336 Skymaster
Commander 112
Commander 114
Diamond DA40
Diamond DA42
Dream Tundra
Evektor VUT100-120i Cobra
Falconar SAL Mustang
Lake LA-4-200 Buccaneer
LFU 205
Mooney M20
Mustang Aeronautics Mustang II
Osprey GP4
Partenavia P.68
Peña Bilouis
Peña Dahu
Piper Arrow
Piper PA-34 Seneca I
Sawyer Skyjacker II
Scaled Composites Boomerang
Skipper Scrappy UAC-200
Scottish Aviation Bulldog
Seawind 2000
SGP M-222 Flamingo
Socata Tobago TB200XL
Sorrell Hiperbipe
Stolp Super Starduster
Tecnam P2010
Thorp T-18
Van's Aircraft RV-6
Van's Aircraft RV-7
Van's Aircraft RV-8
Zeppelin NT
Zlín Z 42


Piper PA-34 Seneca I
Diamond DA42


Stephens Akro


Aero-Cam Slick 360
Aviat Eagle II
Bellanca Super Decathlon
FFA AS-202 Bravo
Grob G 115E
Peña Capeña
Pitts Special
Valmet L-70 Vinka


Enstrom F-28
OH-23 Raven
Schweizer 300


Silvercraft SH-3
Silvercraft SH-4


Type: Four-cylinder, dual magneto, horizontally opposed, four-stroke aircraft engine
Bore: 5.125 in (130 mm)
Stroke: 4.375 in (111 mm)
Displacement: 361 cu in (5,916 cc)
Dry weight: 258 lb (117 kg)
Fuel type: 91/96 avgas minimum grade
Oil system: 8 US qt (8 l) dry sump
Cooling system: air-cooled
Power output: 180 hp (134 kW) at 2700 rpm
Compression ratio: 8.5:1



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