Rotax 912 iS / iSC Sport

100 hp

Based on the proven concept of the Rotax 912 S/ULS engine the new Rotax 912 iS Sport engine offers all well known advantages of the Rotax 4-stroke engine series complemented by additional features, for example, the engine management system. The complete package presents the latest technology in the aircraft engine industry and will enhance the flying and ownership experience of pilots. The Rotax 912 iS Sport engine offers a TBO (time between overhauls) of 2,000 hours.


  • 4-cylinder
  • 4-stroke liquid-/air-cooled engine with opposed cylinders
  • Dry sump forced lubrication with separate oil tank, automatic adjustment by hydraulic valve tappets
  • Redundant electronic fuel injection
  • Engine management system
  • Electric starter
  • Propeller speed reduction unit
  • Air intake system


Weight kg lb
Engine with propeller speed reduction unit i = 2.43 with overload clutch 63.6 140.2
Exhaust system 4.8 10.5
Air guide hood 0.4 0.8
External alternator 3.0 6.6
Fuel pumps assy. 1.6 3.5
Engine mount 2.0 4.4



73.5 kW 100 hp 5800 1/min
72.0 kW ** 98 hp 5500 1/min
132 Nm *** 97 ft. lb. 5500 1/min
MAX RPM* 5800 1/min


* Limited for max. 5 min.
** Max. continuous power at 5500 1/min 
*** MOGAS, no hydraulic governor



84.0 mm 3.31 in 61.0 mm 2.4 in
1352 ccm 82.6 cu in min. MON 85 RON 95* min. AKI 91*


* leaded, unleaded, AVGAS 100LL or E10 
1) iS = non-certified
2) iSc = certified acc. to CS-E

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