What is the difference between a Rotax 912 and a 914?
Introduced in 1996, the Rotax 914 is a turbocharged development of the Rotax 912. The Rotax 914 has a turbocharger with an automatic wastegate controller and dual carburetors. At 141 hp max for five minutes, the Rotax 915 iS is the lightest, most powerful factory-provided aircraft engine.Key Takeaways: The Rotax 915iS is a powerful (135-141 HP sustained/max), fuel-injected, turbocharged, and intercooled engine offering significantly enhanced acceleration and climb compared to the 912iS, with variable fuel consumption depending on speed.
What is the cruise rpm of the Rotax 915?
Size, Weight and Power. Like all of Rotax’s four-cylinder aircraft engines, the 915 iS relies on impressively small displacement (82 cubic inches) and high RPM—4800 rpm in cruise. The best-case power-to-weight ratio for the 915 iS is 0. S is 0. Looking at other engines in the Rotax line, the stalwart 912 ULS has a power-to-weight ratio of 0. Rotax dry weight data.