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The Lycoming IO-580 engine is a horizontally opposed, six-cylinder aircraft engine featuring three cylinders per side, manufactured by Lycoming Engines. [1] There is no carburetted version of the engine, which would have been designated O-580 and therefore the base model is the IO-580. [2] This engine family competes with the Continental IO-550 ...
This one-cylinder engine was designated "Hyper No. 2", and became the test bed for developing the cylinders that would become the Continental O-1430 ("O" for "opposed") engine. It would require a ten-year development period which changed the layout to first an upright V-12 engine and later, an inverted V-12 engine, before becoming reliable ...
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 IO-580, [5] the cylinder barrels of both have a 5.318 bore and 4.375 stroke dimension.)
The 130 hp (97 kW) O-240 was a new engine design derived from the six-cylinder Continental O-360 and introduced in 1971. It is generally similar in overall dimensions to the Continental O-200, but with a higher 8.5:1 compression ratio, designed to run on 100/130 avgas.
The Continental IO-370 engine is a family of fuel injected four-cylinder, horizontally opposed, air-cooled aircraft engines that were developed for use in light aircraft by Continental Aerospace Technologies. There is no carbureted version of this engine, which would have been designation O-370, therefore the base model is the IO-370. [1]
The Lycoming O-540 is a family of air-cooled six-cylinder, horizontally opposed fixed-wing aircraft and helicopter engines of 541.5 cubic inches (8.9 L) displacement, manufactured by Lycoming Engines. The engine is a six-cylinder version of the four-cylinder Lycoming O-360.
The Lycoming GO-480 is a family of six-cylinder, horizontally opposed fixed-wing aircraft engines of 479.6 cubic inch (7.86 L) displacement, made by Lycoming Engines. The engine is a six-cylinder version of the four-cylinder Lycoming O-320.
The O-470 family of engines covers a range from 213 hp (159 kW) to 260 hp (194 kW). The engines were developed in the late 1940s and certification was applied for on 23 October 1950 on the regulatory basis of Part 13 of the US Civil Air Regulations effective 1 August 1949 as amended by 13-1. The first O-470 model was certified on 19 January 1951.