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Rotax 912-UL User Manual

Rotax 912-UL
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d03934
page 10 - 6
Jan. 01/2007
Effectivity: 912 ULS / S
OM Edition 1 / Rev. 0
BRP-Rotax
8. Fuel pressure:
max. ............................................ 0,4 bar ................. (5,8 psi)
min. ............................................. 0,15 bar ............... (2,2 psi)
NOTE: Exceeding the max. admissible fuel pressure will
override the float valve of the carburetor.
The delivery pressure of an additional backing
pump (e.g. electric standby pump) must not ex-
ceed 0,3 bar (4.4 psi) in order not to override the
float valve.
9. Power consumption of the hydraulic propeller governor:
max. ............................................ 600 W
10. Power consumption of the vacuum pump:
max. ............................................ 300 W
11. Power consumption of the external alternator:
max. ............................................ 1200 W
12. Deviation from bank angle
max. ............................................ 40°
NOTE: Up to this value the dry sump lubrication system
warrants lubrication in every flight situation.

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Rotax 912-UL Specifications

General IconGeneral
Displacement1211 cc
Bore x Stroke79.5 mm x 61 mm
Compression Ratio9.0:1
TBO (Time Between Overhaul)2000 hours
Engine Type4-cylinder, 4-stroke
Power Output80 hp
Cooling SystemLiquid/air-cooled
Fuel TypeAvgas 100LL or unleaded automotive gasoline
Oil Capacity3 liters
Fuel System2 carburetors
Oil SystemDry sump forced lubrication with separate oil tank
Reduction Gear Ratio2.43:1
Max Continuous Power75 hp (56 kW)

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