Rotax 916 iS

The Rotax 916 iS is an Austrian piston aircraft engine, designed and produced by Rotax of Gunskirchen for use in light aircraft, light sport, ultralight, homebuilt aircraft and Unmanned aerial vehicle.

The engine was publicly introduced in March 2023 and first used in the CubCrafters Carbon Cub UL.

Design and development
The engine is a turbocharged four-cylinder, four-stroke, horizontally-opposed, 1352 cc displacement, gasoline engine design, with a mechanical gearbox reduction drive with a reduction ratio of 2.54:1. It employs dual electronic ignition and produces 160 hp at 5800 rpm for takeoff and 137 hp at 5500 rpm continuous operation, with a maximum operating altitude of 23000 ft.

It has electronic fuel injection; air cooling, with liquid-cooled cylinder heads; a stainless steel exhaust system; a dry sump, forced lubrication system with a separate oil tank; FADEC control and a 12 volt or 24 volt electric starter.

The initial time between overhaul is 2,000 hours.

Operational history
The Rotax 916 iS was chosen to power the CubCrafters Carbon Cub UL due to the engine's light weight and ability to burn unleaded automotive gasoline, to facilitate exports to areas of the globe where avgas is not available, such as South America and Africa.

Cub Crafters said of the engine that the "key to the development of the new aircraft is CubCrafters’ collaboration with BRP-Rotax, which is launching their new 160 HP turbocharged engine on the Carbon Cub UL. The new 916 iS engine is lighter, more fuel efficient, and can produce more power than the normally aspirated CC340 engine on the Carbon Cub SS in higher density altitude scenarios."

Applications

 * CubCrafters Carbon Cub UL


 * Zlin Aviation Norden UL and LSA
 * Elbit Hermes 900
 * TL Sport Sparker
 * Sling (TSi, HW)
 * SW-51 MUSTANG
 * VL3