Turbomeca Arrius

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Turbomeca Arrius 1B
Type Turboshaft
National origin France
Manufacturer Safran Helicopter Engines
First run 1981
Major applications Eurocopter EC120 Colibri
Eurocopter EC135
Kamov Ka-226
Number built 2800

The Turbomeca Arrius is one of a family of turboshaft engines for helicopter use, first produced in 1981. As of 2012, some 2,700 units had been sold. Power ranges between 357 kW (479 shp) and 530 kW (716 shp) for different versions. Following Turbomeca tradition, the Arrius was named after a Pyrenean peak (pic d'Arrius), located in the Ossau Valley near Pau.


Arrius 1A
Arrius 1A1
Arrius 1M
Arrius 2B1
Arrius 2B1A
Arrius 2B2
Arrius 2F
Arrius 2K1
Arrius 2K2
Arrius 2G1
Arrius 2R



Specifications (Arrius 1A)[edit]

Data from FAA Type Certificate Data Sheet.[1]

General characteristics

  • Type: Twin-spool free-turbine turboshaft
  • Length: 63 in (1601 mm)
  • Diameter: 17.2 in (436 mm)
  • Dry weight: 223.3 lb (101.3 kg)


  • Compressor: Single stage centrifugal
  • Combustors: Annular reverse flow combustion chamber
  • Turbine: Single stage power turbine, single stage gas generator turbine


  • Maximum power output: 520 shp (388 kW)
  • Turbine inlet temperature: 870 °C

See also[edit]

Related lists



  1. ^ FAA Type Certificate Data Sheet Retrieved: 2 November 2008


  • "Aircraft Intelligence". Flight. Vol. LXIII, no. 2309. 24 April 1953. p. 513.

External links[edit]