Turbomeca Arriel
French turboshaft engine
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The Turbomeca Arriel is a series of French turboshaft engines that first ran in 1974.[1] 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.[2]
| Arriel | |
|---|---|
| Cutaway of a Turbomeca Arriel | |
| Type | Turboshaft |
| National origin | France |
| Manufacturer | Turbomeca Safran Helicopter Engines |
| First run | 1974 |
| Major applications | Agusta A109 Eurocopter MH-65 Dolphin Sikorsky S-76 Harbin Z-9 Harbin Z-19 |
| Number built | 10,000 |
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.[3]
Applications
Specifications (Arriel 2)
Data from EASA Type Certificate Data Sheet for Model 2B.[4]
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
