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The Lycoming O-320 is a large family of naturally aspirated, 320 cu in (5.2 L) air-cooled, horizontally-opposed four-cylinder, direct-drive engines produced by Lycoming Engines. Introduced in 1953, it is commonly used on light aircraft such as the Cessna 172 and Piper Cherokee , and remains in production as of 2024.
[21] [22] Many light aircraft are powered by versions of these engines, with power ratings in the 100–360 hp (75–270 kW) range. Engines in this series also include the O-235 four-, O-580 six- and O-720 eight-cylinder engines, and the advanced turbocharged and fuel-injected 450 hp (340 kW) TIGO-541 variant of the venerable (carbureted) O-540.
The O-340 was designed by Lycoming specifically for the TEMCO-Riley D-16A Twin Navion project. Jack Riley, the designer of that aircraft was interested in an upgraded version of the Lycoming O-320 that would produce more power to give the Twin Navion a better single-engine service ceiling. The Lycoming O-360 was still years away in development ...
The IO-390 family of engines, which Lycoming refers to as the IO-390-X, produce 200 hp (149 kW) to 215 hp (160 kW). The IO-390 was developed from the similar IO-360 engine, by using cylinders from the IO-580 [citation needed] to increase the O-360's cylinder bore. (Although the IO-390 cylinder assembly [ 4 ] is not the same part number as the ...
This is a list of the variants of the Lycoming O-360aircraft engine. There are 167 different models within the O-360 family of engines, with 12 different prefixes. Variants. [edit] O-360. [edit] O-360-A1A. 180 hp (134 kW) at 2700 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1.
1955–present. 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 145 and 225 horsepower (109 to 168 kW), with the basic O-360 producing 180 horsepower. [1]
Developed into. Lycoming ALF 502. The Honeywell T55 (formerly Lycoming; company designation LTC-4) is a turboshaft engine used on American helicopters and fixed-wing aircraft (in turboprop form) since the 1950s, and in unlimited hydroplanes since the 1980s. As of 2021, more than 6,000 of these engines have been built. [ 1 ]
The SA-160 is powered by a Lycoming O-320-D2A powerplant of 160 hp, driving a two-bladed wood fixed pitch MT propeller. [2] Symphony Aircraft continued the development started by OMF on a Thielert Centurion 1.7 diesel powered version, which OMF had designated as the OMF-100-135. The performance with the 135 hp engine was disappointing and the ...