Arriel 2B1B

Engine model
Manufacturer Safran Helicopter Engines
Engine type Turboshaft

Technical specifications

Design
Compressor stages
2
Control system Dual channel EECU + optional auxiliary back-up control
Gas generator stages
2
Power turbine stages
1
Dimensions
Height
0.62 m
2.03 ft
Length
1.14 m
3.74 ft
Width
0.49 m
1.61 ft
Power limits
Max. continuous power
543 kW
728 hp
Max. takeoff power
557 kW
747 hp
Rotation speeds
N1 RPM
52,110
N2 RPM
39,095
Output shaft RPM
6,000
Torque limits
Max. continuous torque
91.3 daN/m
673.4 lbf⋅ft
Max. takeoff torque
91.3 daN/m
673.4 lbf⋅ft
Max. transient overtorque
132.2 daN/m
975.1 lbf⋅ft
Weights
Dry weight
132 kg
291 lb