Rotax 915 iS

Rotax 915 iS
Type Aircraft engine
National origin Austria
Manufacturer Rotax
First run 2014
Major applications Issoire APM 41 Simba 915iS
Produced Expected second half of 2017[1]
Number built Prototypes only (2015)

The Rotax 915 iS is an Austrian aircraft engine, under development by Rotax of Gunskirchen for use in ultralight aircraft, homebuilt aircraft, light-sport aircraft, small helicopters and gyroplanes. The intention is that the engine will eventually be type certified.[2][3]

The engine was first publicly displayed at AirVenture in July 2015[2] and first flown in March 2016.[4]

In January 2016 the engine was named AVweb's "Best New Engine" of 2015.[5]

Design and development

The Rotax 915 iS is a four-cylinder four-stroke, horizontally-opposed, turbocharged, air and liquid-cooled, gasoline engine design, with a mechanical gearbox reduction drive. The turbocharger has a compression ratio of 3.5:1 and the engine will have a critical altitude of 15,000 ft (4,572 m). It employs dual electronically controlled fuel injection, using dual channel Rockwell Collins ECUs, with dual ignition and produces 135 hp (101 kW).[2]

The engine is based on the Rotax 912, but differs in that it has a reinforced crankshaft, new pistons, a new gearbox and a turbocharger. Time between overhauls is expected to be 2000 hours from introduction.[2][6]

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).[6]

Availability is expected for second half of 2017[1].

Applications

Specifications (915 iS)

Data from AVweb[2] and manufacturer's website[1]

General characteristics

  • Type: four-cylinder, four-stroke, horizontally-opposed, geared aircraft engine
  • Dry weight: 84 kg (185.2 lb) dry

Components

Performance

See also

Related lists

References

  1. 1 2 3 "ROTAX 915 IS/ISC - Rotax Aircraft Engines". www.flyrotax.com. Retrieved 21 August 2017.
  2. 1 2 3 4 5 "Rotax Announces New 135-hp Turbocharged Engine". AVweb. Retrieved 22 July 2015.
  3. ↑ "Rotax-Owner.com - ROTAX 915 IS: BRP UNVEILS A NEW TURBOCHARGED ROTAX AIRCRAFT ENGINE". Rotax-Owner. Retrieved 22 July 2015.
  4. ↑ "Rotax Updates 915iS Progress". AVweb. Retrieved 7 April 2016.
  5. ↑ "AVweb's Stuff of the Year". AVweb. Retrieved 2 January 2016.
  6. 1 2 "Rotax 915iS Sport Moves Closer To Market". AVweb. Retrieved 28 July 2016.
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