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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.
The Cessna 177B Cardinaluses a Lycoming O-360-A1F6D of 180 hp (130 kW). O-360-A1F6D. 180 hp (134 kW) at 2700 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the A1F6 except that it is equipped with one Bendix D4LN-2021 impulse coupling dual magneto instead of incorporating two single magneto.
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]
By 1961, Lycoming produced 600 to 700 engines per month. [17] Its most successful post-war products were a series of air-cooled flat-4 and flat-6 general aviation engines. Most famous among these are the O-320 and O-360 four-cylinder engines, and the O-540 six-cylinder engine.
Lycoming O-320 mounted in a Robinson R22 Beta The R22 is a simple and tight design. The R22 uses a horizontally mounted Lycoming O-320 (O-360-J2A on the Beta II), flat-four, air-cooled, naturally aspirated, carburetor-equipped, reciprocating engine. It is fueled with 100LL grade aviation gasoline.
The new four-place aircraft, named the American Aviation AA-5 Traveler, was powered by a Lycoming O-320-E2G engine of 150 hp (110 kW). It would carry four people at 121 knots (224 km/h) cruise speed and was certified under US FAR Part 23 .
A mechanic told NTSB investigators that, on or about July 2, he removed a Piper P-28-161 airplane's previously installed Lycoming O-320-D3G engine and installed a Lycoming O-320-D2B.
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 ...