Rotax dials up the power

AOPA by Thomas A. Horne

Rotax on July 21 introduced its most powerful engine yet - the 135-horsepower 915 iS. The maximum continuous power rating is 127 hp. Rotax said the 915 iS has the best power-to-weight ratio in its class, and could maintain full takeoff power to at least 15,000 feet. Service ceiling is posted as 23,000 feet.

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