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BRP Rotax has launched a new engine, the Rotax 912 iS, as an evolution of its popular four-cylinder, four-stroke line for the light-sport market. Designed to burn less gas without sacrificing performance or reliability, the engine is claimed to be as much as 70 percent more fuel-efficient than competing engines.
The biggest improvements in the new engine come from the replacement of the 912’s carburetor with a modern fuel injection system and digital engine control unit (ECU). The engine produces 100 hp while also boasting a 2,000-hour TBO, the same as the 912 engine. Mass production of Rotax 912 iS engines will start in May.
"The development of a four-stroke, four-cylinder 100 hp aircraft engine with a redundant electronic fuel injection system is a first in the industry,” said Gerd Ohrnberger, vice-president and general manager at Rotax’s Powertrain division. “It makes it ideal for all kinds of light sport aircraft.”