Main Rotax Website

ROTAX 915 iS (141 hp)

Engine 915 iS

4- stroke, 4-cylinder 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 system, engine management system, integrated reduction gearbox.

non certified
conforms to ASTM 2339-04 LSA


  1. Data sheets

Standard configuration

version iS 2
(for fixed pitch propeller)

  1. integrated reduction gearbox i = 2,54 with slipper clutch
  2. engine management system
  3. electronic fuel injection
  4. propeller shaft
  5. electric starter and relay
  6. oil filter and oil tank, without hoses
  7. airbox
  8. coolant expansion tank
  9. coolant pump and internal coolant hoses
  10. UNF connection for oil pump
  11. Dual integrated AC generator (14V 16A DC; 14V 30A DC)
  12. CAN aerospace avionics interface
  13. turbo charger with electronic controlled waste gate
  14. engine suspension frame, without silent blocks
  15. stainless steel exhaust system
  16. Intercooler

version iS 3
(for „constant speed” propellers, controlled hydraulically)

Configuration same as for version 2 additionally equipped with:

  1. drive for hydraulic governor and cover for sealing of governor flange
ROTAX 915 iS (141 hp)