Rotax 912 i series Operator's Manual

Effectivity: 912 i Series BRP-Powertrain page 7-12
OM Edition 1/Rev. 0 January 01/2012
d05871.fm
7.5) Propeller gearbox
Reduction ratio For the engine type 912 iSc/iS one reduction ratio is available.
Torsional shock
absorber
The design incorporates a torsional shock absorber. The shock
absorbing is based on progressive torsional cushioning due to axi-
al spring load acting on a dog hub.
Governor Alternatively a hydraulic governor for constant speed propeller
can be used. The drive is via the propeller reduction gear.
Reduction ratio 912 iSc/iS
crankshaft: propeller shaft 2.43:1

Rotax 912 i series Specifications

General

Number of Cylinders	4
Max Power	100 hp (73.5 kW)
Max Power Output RPM	5800 rpm
Ignition System	Dual electronic ignition
Oil System	Dry sump, forced lubrication with separate oil tank
Reduction Gear Ratio	2.43:1
TBO	2000 hours
Engine Type	4-stroke, horizontally opposed
Displacement	1352 cm³
Bore x Stroke	84 mm x 61 mm
Max Torque	128 Nm
Fuel Type	Avgas 100LL or unleaded automotive gasoline
Fuel System	Electronic fuel injection
Cooling System	Liquid/air-cooled