Turbomeca Arriel
turboshaft helicopter engine family
The Turbomeca Arriel is a series of French turboshaft engines that first ran in 1974.
Delivering 650 to 1,000 hp (480 to 750 kW), over 12,000 Arriel engines have been produced from 1978 to 2018, logging more than 50 million flight hours for 40 helicopter applications.
In June 2018, 1,000 Arriel 2D were in service, powering H125 and H130 single-engine helicopters, having logged one million flight hours since 2011.
After endurance tests and fleet data analysis, their TBO increased by 25% to 5,000 hours and mandatory inspection rose to 15 years with no hourly limit, lowering maintenance costs.
In 2021 Safran opened a production facility in Grand Prairie, Texas for production of Arriel 2E engines, which had previously only been produced in France.
Applications
AgustaWestland AW109
Eurocopter AS365 Dauphin
Eurocopter AS565 Panther
Eurocopter MH-65 Dolphin
Eurocopter EC130
Eurocopter EC145
Eurocopter EC155
Eurocopter AS350 Écureuil
Harbin Z-9
Harbin Z-19
Kopter AW09
MBB/Kawasaki BK 117
Robinson R88
Sikorsky S-76
Specifications (Arriel 2)
Data from EASA Type Certificate Data Sheet for Model 2B.
General characteristics
Type: Turboshaft engine
Length: 1.181 m (3 ft 10.5 in)
Diameter: 0.616 m (2 ft 0.3 in)
Dry weight: 134 kg (295 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: 747 shp (557 kW)
Overall pressure ratio: 8:1
Turbine inlet temperature: 915 °C (1,679 °F)
Power-to-weight ratio: 4.2 kilowatts per kilogram (2.6 hp/lb) approx
See also
Related lists
List of aircraft engines
References
Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 166.
“Turbomeca Arriel” enters the record as turboshaft helicopter engine family. Crown Archives preserves that source wording while asking what Turbomeca, Arriel and turboshaft can confirm, complicate or overturn.
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