2.4. Engine limitations
2.4.1. Rotax 912 ULS
Specications stated in this article are not complete.
Detailed data of the engine is stated in the engine
Operator‘s Manual.
R 912 ULS Value
Takeo RPM 5800 (max 5 minutes)
Max. RPM 5500
Idle RPM 1400
Oil pressure
max: 7 bar (102 psi), min 0.8 bar (12 psi) below 3500 rpm
normal: 2.0 - 5.0 bar (29-73 psi) above 3500 rpm
Oil temperature
min: 50°C (120°F), max 130°C (266°F)
normal: approx. 90 to 110°C (190-230°F)
Cylinder heat temp. max: 135°C (275°F)
Exgaust gas
max: 880°C (1616°F) at takeo
max: 850°C (1560°F) during y
normal: 800°C (1470°F)
Fuel pressure
min: 0.15 bar (2.2 psi), max 0.4 bar (5.8 psi)
max 0.5 bar (7.26 psi) - for applicate only for fuel pump from
S/N 11.0036
Fuel consumption
27.0 l/h (7.1 gal/h) at takeo performance
25.0 l/h (6.6 gal/h) at max. continous performance
18.5 l/h (4.9 gal/h) 75% at max. continous performance
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