Lycoming O-360

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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.[1]

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[1] or twelve years.[2]

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.[3] The Lycoming IO-390 is an O-360 which has had its cylinder bore increased by 316 inches, developing 210 hp (157 kW) .[4][5]

Series

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.[3][6][3][6][7][8]

  • 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[9]
  • 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

Variants

Applications

Piper PA-44-180 Seminole features two Lycoming O-360 engines
O-360
LO-360
IO-360
LIO-360
An LIO-360 on the starboard wing of a Piper PA-34-200 Seneca I.
AIO-360
AEIO-360
HIO-360
LHIO-360

Specifications (O-360-A1A)

Data from Type Certificate Data Sheet E-286[3]

General characteristics

  • 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)

Components

  • Fuel type: 91/96 avgas minimum grade[12]
  • Oil system: 8 US qt (8 l) dry sump
  • Cooling system: air-cooled

Performance

See also

References

  1. 1.0 1.1 Lycoming (2004). "360 Series" (PDF). Retrieved 2008-09-16. 
  2. Lycoming Engines (8 July 2013). "Recommended Time Between Overhaul Periods". Retrieved 8 July 2013. 
  3. 3.0 3.1 3.2 3.3 Federal Aviation Administration (August 2009). "TYPE CERTIFICATE DATA SHEET NO. E-286 Revision 20". Retrieved 9 September 2011. 
  4. Lycoming Engines (undated). "Lycoming IO-390-X". Retrieved 2009-01-07. 
  5. Lycoming Engines (2004). "Specialty datasheet" (PDF). Retrieved 2008-12-20. 
  6. 6.0 6.1 Federal Aviation Administration (April 2004). "TYPE CERTIFICATE DATA SHEET NO. 1E10 Revision 22". Retrieved 2009-01-17. 
  7. Federal Aviation Administration (March 1986). "TYPE CERTIFICATE DATA SHEET NO. E26EA Revision 4". Retrieved 2009-01-18. 
  8. Federal Aviation Administration (March 1986). "TYPE CERTIFICATE DATA SHEET NO. E16EA Revision 5". Retrieved 2009-01-18. 
  9. Federal Aviation Administration (13 July 2004). "Airplane Flying Handbook". Retrieved 18 September 2012. 
  10. Mooney Aircraft, Inc. (March 1967). Executive 21 Owners Manual. 
  11. 11.0 11.1 Federal Aviation Administration (February 2007). "Docket No. FAA-2006-25948; Directorate Identifier 2006-NE-32-AD; Amendment 39-14951; AD 2007-04-19". Retrieved 2009-03-09. 
  12. Lycoming (2010). "Lycoming Service Instruction 1070Q" (PDF). Retrieved 3 November 2011. 

External links

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