Rotax 912
| Rotax 912 | |
|---|---|
| Rotax 912ULS 100 hp (75 kW) installation in a 3Xtrim 3X55 Trener | |
| Type | Piston aircraft engine |
| National origin | Austria |
| Manufacturer | Rotax Aircraft Engines |
| First run | 1984 |
| Major applications | Light sport aircraft Ultralight aircraft |
| Produced | 1989–present |
| Variants | Rotax 914 Rotax 915 iS |
The Rotax 912 is a horizontally-opposed four-cylinder, naturally-aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, later versions are fuel injected. Dominating the market for small aircraft and kitplanes, Rotax produced its 50,000th 912-series engine in 2014. Originally available only for light sport aircraft, ultralight aircraft, autogyros and drones, the 912-series engine was approved for certified aircraft in 1995.