Arriel 1K1  
Initial Operational Capability (IOC):
Total Production: ?
Origin: France
Corporations: Turbomeca
Parent System: Arriel 1
Initial Operational Capability (IOC): 1977
Total Production: 6,000
Family Members: Arriel 1D1, Arriel 1E2 and Arriel 1S1
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Description: The Turbomeca Arriel engine family was designed very simple with reduced parts and only five modules for ease of maintenance while delivering excellent handling characteristics and high level of reliability. Arriel 1-series have been installed on a wide range of twin-engine commercial/military helicopters. Arriel 2 is an improved variant. So far, there are 28 versions of the Arriel 1/2 engine family developing between 640 and 944 shaft-horse-power (shp). The Time Between Overhaul (TBO) for Arriel 1 engine family is 3,000 hours which can be extended in three of its five modules. Launched in 1977, Turbomeca has produced more than 10,000 engines (6,000 Arriel 1 engines logging more than 19 million flight hours) logging more than 32 million flight hours with 1,300 customers in 110 countries.

Agusta's A109 K2 helicopter is powered by two Arriel 1K1 engines.

Arriel 1K1 Applications

Private Aircraft AW109 Power Propulsion Systems Arriel 2C Arriel 2S1 Support Aircraft AW109 LUH

Arriel 1K1 Specifications

Max Continuous Power: 632 shp (471 kW)
Max Power at TakeOff: 738 shp (551 kW)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

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