Rotax 912 S / ULS (100hp)

Engine 912 S / 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 ft. lb. 1/min Nm ft. lb. 1/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. MON 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

1 UL = non certified    2 A = certified acc. to FAR 33

* limited for max. 5 min    ** leaded, unleaded, AVGAS 100LL or Ethanol 10