Turbomeca Arriel

Arriel
Cutaway of a Turbomeca Arriel
Type	Turboshaft
National origin	France
Manufacturer	Turbomeca
First run	1974
Major applications	Agusta A109 HH-65C Dolphin Sikorsky S-76

The Turbomeca Arriel is a highly-successful series of French turboshaft engines that first ran in 1974. Weighing 109 kg (240 lb), the Arriel 1 has a power output of 520 kW (700 hp). As of 2007, nearly 7,000 examples had been produced.

Applications

• Agusta A109
• Eurocopter Dauphin
• Eurocopter Ecureuil
• MBB/Kawasaki BK 117
• Eurocopter EC145
• Sikorsky S-76

Specifications (Arriel 1)

Data from:

General characteristics

• Type: Twin spool free turbine Turboshaft
• Length: 44.2 in
• Diameter: 23.5 in
• Dry weight: 245 lb

Components

• Compressor: Single stage axial plus single stage centrifugal
• Combustors: Annular combustion chamber
• Turbine: Single stage power turbine, two stage gas generator turbine
• Fuel type: Jet A1

Performance

• Maximum power output: 681 shp (508 kW)
• Turbine inlet temperature: 840 C
• Power-to-weight ratio:

References

• Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. pp. 166. 

External links

• Turbomeca website