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Lycoming O-360

{{Short description|Flat-four piston aircraft engine family by Lycoming}}

{{Use mdy dates|date=April 2022}}

{{Use American English|date=April 2022}}

{{for|a similarly named and broadly similar aircraft engine by another manufacturer|Continental IO-360}}

{{Infobox aircraft begin

|name= O-360

|image= File:Lycoming IO-360 RAFM Cosford.jpg

|caption= Lycoming IO-360-A1B6

}}{{Infobox Aircraft Engine

|type= Piston aircraft engine

|manufacturer= Lycoming Engines

|national origin= United States

|first run= 1952
1963 (injected version)

|major applications= Cessna 172 R & S
Cessna 177 Cardinal
Mooney M20

|produced= 1955–present

|number built=

|developed from=

|variants with their own articles=

|developed into= Lycoming IO-390
Lycoming O-540
Lycoming IO-720

}}

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 {{cvt|145|and|225|hp|-1}}, with the basic O-360 producing {{cvt|180|hp}}.{{cite web|url = http://www.lycoming.com/engines/series/pdfs/360ci%20Engine%20Insert.pdf|title = 360 Series|access-date = 2008-09-16|last = Lycoming|year = 2004|url-status = dead|archive-url = https://web.archive.org/web/20101126094011/http://lycoming.com/engines/series/pdfs/360ci%20Engine%20Insert.pdf|archive-date = 2010-11-26}}

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.{{cite web|url = http://www.lycoming.com/Portals/0/techpublications/serviceinstructions/SI%201009AV%20(07-08-2013)/Recommended%20Time%20Between%20Overhaul%20Periods.pdf|title = Recommended Time Between Overhaul Periods|access-date = 8 July 2013|last = Lycoming Engines|author-link = Lycoming Engines|date = 8 July 2013|archive-url = https://web.archive.org/web/20130913192926/http://lycoming.com/Portals/0/techpublications/serviceinstructions/SI%201009AV%20(07-08-2013)/Recommended%20Time%20Between%20Overhaul%20Periods.pdf|archive-date = 2013-09-13|url-status = dead}} 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.{{cite tech report |editor-first=Samuel |editor-last=Enfield |editor2=Burr, R. |editor3=Badgett, R.|display-editors=etal|title=Airboats |number=R-1590 0 |institution=Army Concept Team in Vietnam |date=April 15, 1966 |url=http://www.dtic.mil/dtic/tr/fulltext/u2/372880.pdf |archive-url=https://web.archive.org/web/20200803080325/http://www.dtic.mil/dtic/tr/fulltext/u2/372880.pdf |url-status=dead |archive-date=August 3, 2020 |location=San Francisco |via=DTIC| page=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. The Lycoming IO-390 is an O-360 which has had its cylinder bore increased by {{convert|3/16|in|1}}, developing {{cvt|210|hp|kW|-1}}.{{cite web|url = http://www.lycoming.textron.com/engines/series/390-series-engines.html|title = Lycoming IO-390-X|access-date = 2009-01-07|last = Lycoming Engines|author-link = Lycoming Engines|year = n.d.}}{{cite web|url = http://www.lycoming.textron.com/engines/series/pdfs/Specialty%20insert.pdf|title = Specialty datasheet|access-date = 2008-12-20|last = Lycoming Engines|author-link = Lycoming Engines|year = 2004}}

Series

The O-360 family of engines comprises 167 different models with 12 different prefixes. All have a {{cvt|361|cuin|L|0}} displacement and {{cvt|5.125|and|4.375|in|mm|0}} bore and stroke.{{cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/21e8d0b43d2298188625760e005237eb/$FILE/E-286.pdf|title = Type Certificate Data Sheet No. E-286 Revision 20|access-date = 9 September 2011|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date=August 2009}}{{cite web|url = http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/299fa3d6aef0ba048625821e0072188a/$FILE/1E10_Rev_28.pdf|title = Type Certificate Data Sheet No. 1E10 Revision 28|access-date = 26 January 2019|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date = 10 January 2018}}{{cite web|url =http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/73386F68804EBC5A8525670E0052E547?OpenDocument&Highlight=to-360|title = Type Certificate Data Sheet No. E26EA Revision 4|access-date = 2009-01-18|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date=March 1986}}{{cite web|url =http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/236C0F354301B8D28525670E0052CBDD?OpenDocument&Highlight=tio-360|title = Type Certificate Data Sheet No. E16EA Revision 5|access-date = 2009-01-18|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date=March 1986}}

  • 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{{cite web|url=http://www.faa.gov/library/manuals/aircraft/airplane_handbook/media/faa-h-8083-3a-5of7.pdf |title=Airplane Flying Handbook |access-date=18 September 2012 |last=Federal Aviation Administration |author-link=Federal Aviation Administration |date=13 July 2004 |url-status=dead |archive-url=https://web.archive.org/web/20120921094448/http://www.faa.gov/library/manuals/aircraft/airplane_handbook/media/faa-h-8083-3a-5of7.pdf |archive-date=21 September 2012 }}
  • 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

{{main|List of Lycoming O-360 variants}}

Applications

File:Piper PA44-180 aircraft.jpg

;O-360

{{columns-list|colwidth=18em|

}}

;LO-360

;IO-360

{{columns-list|colwidth=20em|

}}

;LIO-360

File:LIO360engine.JPG.]]

;AIO-360

;AEIO-360

;HIO-360

;LHIO-360

  • Silvercraft SH-3{{cite web|url = http://www.lion.com/FederalRegister/2007/February23/E7-2985.htm|title = Docket No. FAA-2006-25948; Directorate Identifier 2006-NE-32-AD; Amendment 39-14951; AD 2007-04-19|access-date = 2009-03-09|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date = February 2007|url-status = dead|archive-url = https://web.archive.org/web/20110713212348/http://www.lion.com/FederalRegister/2007/February23/E7-2985.htm|archive-date = 2011-07-13}}
  • Silvercraft SH-4

Specifications (O-360-A1A)

{{pistonspecs|

|ref=Type Certificate Data Sheet E-286

|type=Four-cylinder, dual magneto, horizontally opposed, four-stroke aircraft engine

|bore={{convert|5.125|in|mm|0|abbr=on}}

|stroke={{convert|4.375|in|mm|0|abbr=on}}

|displacement={{cvt|361|cuin|L|1}}

|length=

|diameter=

|width=

|height=

|weight={{cvt|258|lb|kg|0|}}

|valvetrain=

|supercharger=

|turbocharger=

|fuelsystem=

|fueltype=91/96 avgas minimum grade{{cite web|url=http://lycoming.com/support/publications/service-instructions/pdfs/SI1070Q.pdf |title=Lycoming Service Instruction 1070Q |access-date=3 November 2011 |last=Lycoming |year=2010 |url-status=dead |archive-url=https://web.archive.org/web/20111117095958/http://www.lycoming.com/support/publications/service-instructions/pdfs/SI1070Q.pdf |archive-date=17 November 2011 }}

|oilsystem={{convert|8|USqt|L|0|abbr=on}} wet sump

|coolingsystem=air-cooled

|power={{cvt|180|hp|kW|-1}} at 2700 rpm

|specpower=

|compression=8.5:1

|fuelcon={{convert|7.8|gal|L|0|abbr=on}} to {{convert|9|gal|L|0|abbr=on}} per hour{{cite web|url=https://www.lycoming.com/content/operator's-manual-O-360-HO-360-IO-360-AIO-360-HIO-360-TIO-360-60297-12|title=O-360, HO-360, IO-360, AIO-360, HIO-360 & TIO-360 Operator's Manual|website=lycoming.com|access-date=11 July 2018}}

|specfuelcon=

|oilcon=

|power/weight=

|designer=

|reduction_gear=

|general_other=

|components_other=

|performance_other=

}}

See also

{{aircontent

|see also=*Superior Air Parts Vantage

|related=

|similar aircraft=

|lists= *List of aircraft engines

}}

References

{{Reflist}}

External links

{{commons category}}

  • [http://lycoming.com/ Lycoming Homepage]
  • {{cite web |url= https://www.lycoming.com/sites/default/files/O-HO-IO-HIO-AIO%20%26%20TIO-360%20Oper%20Manual%2060297-12.pdf |title= Operator's Manual O-360, HO-360, IO-360, AIO-360, HIO-360 & TIO-360 Series |publisher= Lycoming |date= October 2005}}

{{Lycoming aeroengines}}

Category:Boxer engines

O-360

Category:1950s aircraft piston engines