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Initial Operational Capability (IOC):
Also Known As: Arrius 2K2
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Description: The Arrius is a family of turboshaft engines introduced in 1981 to power a wide range of rotary-wing single and twin-engine aircraft. More than 2,700 engines have been produced by Turbomeca (Safran Group) for 430 customers in 60 countries as of early 2011. These engines have logged more than 5 million flight hours so far. This engine family features extreme simplicity design and mainly consists of five basic variants: Arrius 1A/1M, Arrius 2F, Arrius 2B1/2B2, Arrius 2K1/2K2 and Arrius 2G/2G1. Only the Arrius 2F/G/B/K variants remain in production today. Their maximum power at take-off ranges from 479-shp to 730-shp.
The Arrius 2K1 turboshaft engine was certified in late 2001 and powers the AgustaWestland A109E Power twin-engine helicopter. The Arrius 2K2 powers the A109 LUH helicopter. Both engines are controlled by an Electronic Engine Control Unit (EECU) which provides automatic starting, engine protection, training mode and engine life management functions. The Time Between Overhaul (TBO) is 3,000 hours and offer 40 percent power increase compared to early Arrius engines.
Arrius 2K1 Applications
Arrius 2K1 Specifications
Height: 638 millimeter (25.1 inch)
Length: 973 millimeter (38.3 inch)
Width: 538 millimeter (21.2 inch)
Max Continuous Power: 571 shp (426 kW)
Max Power at TakeOff: 670 shp (500 kW)
Time Between Overhaul: 3,000 hour
CEP: Circular Error Probable
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Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
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