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ROTAX 912 ULS

Engine 912 ULS

Description

In comparison to the 80 hp version of the Rotax 912 series the 100 hp product line offers more power while keeping the weight. This engine series offers a time between overhauls of 2.000 hrs and the best power to weight ratio in its class - no surprise that this engine is the best selling 4-stroke engine. This series is available as non-certified (Rotax 912 ULS) and certified engine (Rotax 912 S) according to FAR33.

Facts

  1. 4-cylinder
  2. 4-stroke liquid/air-cooled engine with opposed cylinders
  3. dry sump forced lubrication with separate oil tank
  4. 2 carburetors
  5. mechanical fuel pump
  6. dual-electronic ignition
  7. electric starter
  8. propeller speed reduction unit
  9. air intake system
Version Performance Torque Max RPM
  kW hp 1/min Nm ft. lb. l/min 1/min
912 ULS1/S2 73.5 100 5800 128 94 5100 5800
Bore Stroke Displacement Fuel
84 mm 3.31 in 61 mm 2.4 in 1352 cm3 82.6 cu in. min. MOD 85 RON 95*
min. AKI 91**
WEIGHT kg ib
engine with propeller speed reduction unit i = 2.43 56.6 124.5
overload clutch 1.7 3.7
exhaust system 4.0 8.8
external alternator 3.0 6.6
PDF Data Sheet Download
1) ULS = non certified
* limited for max. 5 min
2) S = certified acc. to FAR 33
** leaded, unleaded, AVGAS 100LL or Ethanol 10