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Continental TSIO-550

IO-550
Columbia400Engine.jpg
Continental TSIO-550-C engine installation in a Cessna 400
Type Piston aircraft engine
National origin United States
Manufacturer Teledyne Continental Motors
First run 1983
Major applications Cessna 400
Mooney Ovation
Cirrus SR22
Developed from Continental O-520

The Continental IO-550 engine is a large family of fuel injected six-cylinder, horizontally opposed, air-cooled aircraft engines that were developed for use in light aircraft by Teledyne Continental Motors. The first IO-550 was delivered in 1983 and the type remains in production.

The IOF-550 is an Aerosance FADEC equipped version of the same basic engine, the TSIO-550 is a dual turbocharged version and the TSIOL-550 is a liquid-cooled variant.

There is no O-550 engine, which would be a carburetor-equipped variant, hence the base model is the IO-550.

This engine family competes with the Lycoming IO-580 series which are also six-cylinder engines with similar power output and weight.

The IO-550 family of engines was developed from the IO-520 series, with the stroke increased from 4.00 to 4.25 inches, increasing the displacement to 552 in³ (9.05 l). The engine family covers a power range from 280 hp (209 kW) to 360 hp (268 kW).

The engines were first developed in the early 1980s and first certified on a regulatory basis of FAR 33, 1 February 1965 amendment, 33-8, 2 May 1977. The first IO-550 model was certified on 13 October 1983.

Data from Type Certificate Data Sheet E3SO.


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