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 and homebuilt aircraft.[1][2]
| Rotax 916 iS | |
|---|---|
| Type | Piston aircraft engine |
| National origin | Austria |
| Manufacturer | Rotax |
| Major applications | CubCrafters Carbon Cub UL |
| Developed from | Rotax 915 iS |
The engine was publicly introduced in March 2023 and first used in the CubCrafters Carbon Cub UL.[3][4][5][6][7][8][9]
Design and development
The engine is a turbocharged four-cylinder, four-stroke, horizontally-opposed, 1,352 cc (82.5 cu in) 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 (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).[1]
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.[1]
The initial time between overhaul is 2,000 hours.[1]
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.[3][4][6][7][8][9]
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."[9]
Applications
Specifications (916 iS)
Data from Manufacturer[1]
General characteristics
- Type: Four cylinder, four stroke aircraft engine
- Bore: 84.0 mm (3.3 in)
- Stroke: 61.0 mm (2.4 in)
- Displacement: 1,352 cc (82.5 cu in)
- Dry weight: 85.8 kg (189.2 lb), including with propeller speed reduction gearbox with overload clutch, turbocharger, intercooler and exhaust system
Components
- Turbocharger: intercooled
- Fuel system: electronic fuel injection
- Fuel type: gasoline minimium MON 85, RON 95, AKI 91, leaded or unleaded, avgas 100LL, maximum ethanol 10%
- Oil system: dry sump, forced lubrication with separate oil tank
- Cooling system: air cooled with liquid cooled cylinder heads
- Reduction gear: mechanical gearbox, 2.54:1 ratio
Performance
- Power output: 160 hp (119 kW) at 5800 rpm for takeoff, 137 hp (102 kW) at 5500 rpm continuous
References
- BRP-Rotax GmbH & Co KG. "916 iS A, iSc A, iS C24, iSc C24". flyrotax.com. Archived from the original on 3 April 2023. Retrieved 3 April 2023.
- BRP-Rotax GmbH & Co KG (28 March 2023). "Press Release 916iS/c - the impossible engine". flyrotax.com. Archived from the original on 3 April 2023. Retrieved 3 April 2023.
- Bertorelli, Paul (28 March 2023). "Carbon Cub Gets A Rotax". AVweb. Archived from the original on 29 March 2023. Retrieved 29 March 2023.
- Bertorelli, Paul (1 April 2023). "Rotax and CubCrafters: Let's Hear It For Putting Light Back Into Light Aircraft". AVweb. Archived from the original on 3 April 2023. Retrieved 3 April 2023.
- Cook, Marc (31 March 2023). "Sun 'n Fun 2023: CubCrafters Unveils The New Carbon Cub UL". AVweb. Archived from the original on 3 April 2023. Retrieved 3 April 2023.
- Godlewski, Meg (30 March 2023). "CubCrafters Unveils Carbon Cub UL". Flying. Archived from the original on 3 April 2023. Retrieved 3 April 2023.
- Lynch, Kerry (30 March 2023). "CubCrafters Rolls Out UL Variant with Updated Engine". AIN OnLine. Archived from the original on 1 April 2023. Retrieved 3 April 2023.
- Cook, Marc (31 March 2023). "CubCrafters Unveils the New Carbon Cub UL". KitPlanes. Archived from the original on 3 April 2023. Retrieved 3 April 2023.
- Cub Crafters (28 March 2023). "PRESS RELEASE – CubCrafters to Offer New Rotax Powered Carbon Cub". cubcrafters.com. Archived from the original on 3 April 2023. Retrieved 3 April 2023.