Rotax 912ULS Technical Specifications!

Rotax 912 ULS Technical Specifications

General Features
  • 4-stroke engine specially developed for recreational aircraft. Also exists in a certified version: Rotax 912 S
  • 4 horizontally opposed cylinders, "boxer" configuration
  • Free air cooled cylinders, liquid cooled cylinder heads with integrated pump and expansion tank
  • Dry sump forced lubrication with integrated pump and separate oil tank
  • 8 valves, automatic adjustment by hydraulic valve tappet
  • Dual Capacitor Discharge Ignition (DCDI) with RFI noise suppression
  • Two Bing Constant Depression (CD) carburetors
  • Mechanically driven diaphragm fuel pump
  • Integrated heavy duty electric starter
  • Integrated reduction gearbox, ratio of 2.43:1 with slipper clutch as standard
  • Various liquid and oil radiators available
  • Many option available such as: Vacuum pump, external alternator, hydraulic propeller governor
  • Operates on automotive fuel with a minimum octane rating of 91
  • Time Between Overhauls (TBO): upto 2000 hours

The table below includes data for the Rotax 912 ULS.

Maximum Power (5 mins): 100HP / 73.5KW @ 5800 RPM
Maximum Power (sustained) 95HP / 69.0KW @ 5500 RPM
Maximum Torque 94ft-lb / 128NM @ 5100 RPM
Bore 3.31" / 84mm
Stroke 2.40" / 61.0mm
Displacement: / 1352cm�
Compression ratio: 10.5:1
IGNITION SYSTEM: Breakerless Ducati DCDI
(Dual capacitor discharge ignition)
with magneto generator.

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AeroFix Aviation Ltd
United Kingdom
Telephone: 07779 147 229