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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 hp (110 and 170 kW), with the basic O-360 producing 180 hp (130 kW).
This is a list of the variants of the Lycoming O-360 aircraft engine. There are 167 different models within the O-360 family of engines, with 12 different prefixes.
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.
Later production Seminoles were built with Lycoming O-360-A1H6 engines. [5] The PA-44-180T Turbo Seminole version was certified on November 29, 1979. It features two turbocharged 180 hp (135 kW) Lycoming TO-360-E1A6D engines, which offer a significant improvement in performance at high density altitude. The Turbo Seminole had its takeoff gross ...
List of Lycoming O-360 variants; Lycoming O-435; Lycoming O-480; Lycoming O-540; Lycoming O-1230; R. Lycoming R-680; Lycoming XR-7755; T. Lycoming T53; Honeywell T55;
The prototype of the Robin HR100 was the prototype DR253 Regent which was rebuilt with metal wings and powered by a 180 hp (134 kW) Lycoming O-360 engine. It first flew on 3 April 1969 as the Robin HR100/180. The HR100 is a low-wing cantilever monoplane with a conventional cantilever tail unit and a fixed tricycle landing gear.
O-360-A4A2 Carburetor-equipped model with a thin wall front main bearing journal crankshaft, for a fixed pitch propeller, and a number 1 style dynafocal engine mount for a front propeller governor, that produces 180 hp (134 kW) at 2700 rpm, with a compression ratio of 8.5:1 and with a basic dry weight of 291 lb (132 kg). [2] O-360-A5A2
Bellanca made the Scout available with several Lycoming O-360 engine variants, all of 180 horsepower (134 kW), with the choice of a fixed-pitch or constant speed propeller. American Champion's Scouts feature the Lycoming O-360-C1G and a choice of a two-blade constant speed propeller (standard) or a three-blade constant speed propeller as an option.