Arriel 1S1

Engine model
Manufacturer Safran Helicopter Engines
Engine type Turboshaft

Technical specifications

Design
Compressor stages
2
Control system Hydromechanical
Gas generator stages
2
Power turbine stages
1
Dimensions
Height
0.79 m
2.59 ft
Length
1.54 m
5.05 ft
Width
0.49 m
1.61 ft
Power limits
Max. continuous power
541 kW
725 hp
Max. takeoff power
541 kW
725 hp
Rotation speeds
N1 RPM
52,110
N2 RPM
44,421
Output shaft RPM
6,409
Weights
Dry weight
130 kg
287 lb

Aircraft models

Manufacturer Name Aircraft family
Sikorsky S-76C Helicopter