Why are Rotax engines so good?
rotax engines are famous for their reliability and best-in-class power-to-weight ratio. Versatile, cost-efficient, and easy to use and maintain, rotax engines have gained the trust of flight schools, home builders, and aircraft manufacturers alike. Compared to the 915 is, the 916 is delivers 20 extra horsepower. But we had to modify 26 key components to boost efficiency and provide a 2,000-hour tbo.Rotax has more than 10,000 engines on the registry, but only about a third of those were the 912 and 914 four-cylinders we were interested in. Based on our data, the overall Rotax failure rate is 1.Like all of Rotax’s four-cylinder aircraft engines, the 915 iS relies on small displacement (82 cubic inches) and high RPM—4800 RPM in cruise.When zipping along approximately 150 knots true, consumption rose to the 7-9 gph range. The 915iS fuel injected, turbocharged, and intercooled engine can produce 141 horsepower up to 15,000′, then sustain 135 horsepower indefinitely.
How much horsepower does a Rotax 916is have?
It employs dual electronic ignition and produces 160 hp (119 kW) at 5800 rpm for takeoff and 137 hp (102 kW) at 5500 rpm continuous operation, with a maximum operating altitude of 23,000 ft (7,010 m). It employs dual electronically controlled fuel injection, using dual channel Rockwell Collins ECUs, with dual ignition and produces 141 hp (105 kW) for take-off and 135 hp (101 kW) continuous. The engine can produce rated power up to 15,000 ft (4,572 m) and has a ceiling of 23,000 ft (7,010 m).