What is c85 engine?

As an AI language model, I cannot understand which specific engine model out of many named "c85" is being referred to. However, I can provide some general information about aircraft engines with a similar naming convention.

It is common for aircraft engines to be named after their displacement (in cubic inches) combined with a letter code indicating the engine type, manufacturer, or model. For example, "c85" could potentially refer to a Continental C-85, which is an 85-horsepower air-cooled four-cylinder aircraft engine designed and manufactured by the Continental Motors, Inc. The C-85 is a popular engine used in light aircraft, such as the Piper J-3 Cub and Cessna 140.

Overall, the specific characteristics and performance capabilities of an engine named "c85" would vary depending on the manufacturer and model, but it would generally be a small aircraft engine designed for light aircraft.