# Turbomeca Arriel

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French turboshaft engine

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

The **Turbomeca Arriel** is a series of French [turboshaft](/source/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](/source/H125) and [H130](/source/H130) single-engine helicopters, having logged one million flight hours since 2011. After endurance tests and fleet data analysis, their [TBO](/source/Time_between_overhaul) increased by 25% to 5,000 hours and mandatory inspection rose to 15 years with no hourly limit, lowering maintenance costs.[2]

In 2021 Safran opened a production facility in [Grand Prairie, Texas](/source/Grand_Prairie%2C_Texas) for production of Arriel 2E engines, which had previously only been produced in France.[3]

## Applications

- [AgustaWestland AW109](/source/AgustaWestland_AW109)

- [Eurocopter AS365 Dauphin](/source/Eurocopter_AS365_Dauphin)

- [Eurocopter AS565 Panther](/source/Eurocopter_AS565_Panther)

- [Eurocopter MH-65 Dolphin](/source/Eurocopter_MH-65_Dolphin)

- [Eurocopter EC130](/source/Eurocopter_EC130)

- [Eurocopter EC145](/source/Eurocopter_EC145)

- [Eurocopter EC155](/source/Eurocopter_EC155)

- [Eurocopter AS350 Écureuil](/source/Eurocopter_AS350_%C3%89cureuil)

- [Harbin Z-9](/source/Harbin_Z-9)

- [Harbin Z-19](/source/Harbin_Z-19)

- [Kopter AW09](/source/Kopter_AW09)

- [MBB/Kawasaki BK 117](/source/MBB%2FKawasaki_BK_117)

- [Robinson R88](/source/Robinson_R88)

- [Sikorsky S-76](/source/Sikorsky_S-76)

## Specifications (Arriel 2)

*Data from* *EASA Type Certificate Data Sheet* for Model 2B.[4]

#### General characteristics

- Type: [Turboshaft](/source/Turboshaft) [engine](/source/Aircraft_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](/source/Axial_compressor) plus single-stage [centrifugal](/source/Centrifugal_compressor)

- [Combustors](/source/Combustor): [Annular combustion chamber](/source/Combustor#Annular)

- [Turbine](/source/Turbine): Single-stage [power turbine](/source/Free-turbine_turboshaft), two-stage [gas generator](/source/Gas_generator) turbine

- Fuel type: [Jet A1](/source/Jet_fuel)

#### Performance

- Maximum power output: 747 shp (557 kW)

- [Overall pressure ratio](/source/Overall_pressure_ratio): 8:1

- Turbine inlet temperature: 915 °C (1,679 °F)

- [Power-to-weight ratio](/source/Power-to-weight_ratio): 4.2 kilowatts per kilogram (2.6 hp/lb) approx

## See also

**Related lists**

- [List of aircraft engines](/source/List_of_aircraft_engines)

## References

1. **[^](#cite_ref-1)** Gunston 1989, p.170.

1. **[^](#cite_ref-AIN27jun2018_2-0)** Mark Huber (June 27, 2018). ["Safran Boosts Arriel 2D TBO by 25 Percent"](https://www.ainonline.com/aviation-news/business-aviation/2018-06-27/safran-boosts-arriel-2d-tbo-25-percent). *AIN online*.

1. **[^](#cite_ref-AvWebOct2021_3-0)** O'Connor, Kate (19 October 2021). ["Safran Opens Arriel 2E Assembly Line In U.S."](https://www.avweb.com/ownership/engines/safran-opens-arriel-2e-assembly-line-in-u-s/) *AVweb*. Retrieved 20 October 2021.

1. **[^](#cite_ref-4)** [EASA Type Certificate Data Sheet](https://www.easa.europa.eu/en/downloads/7801/en) Retrieved: 2 December 2025

- Gunston, Bill (1986). *World Encyclopedia of Aero Engines*. Wellingborough: Patrick Stephens. p. 166.

## External links

Wikimedia Commons has media related to [Turbomeca Arriel](https://commons.wikimedia.org/wiki/Category:Turbomeca_Arriel).

- [Turbomeca Arriel official site](https://www.safran-helicopter-engines.com/helicopter-engines/lower-1000-shp/arriel)

v t e Turbomeca and Safran aero engines Gas generators/Auxiliary power units Orédon Palouste Turbojets Arbizon Gabizo Marboré Ossau Palas Piméné Turbofans Aspin Astafan Aubisque Turboprops/Turboshafts Aneto Ardiden Arrano Arriel Arrius Artouste/Marcadau Astazou Bastan Makila TM 333 Turmo Joint development MTU Turbomeca Rolls-Royce: MTR390 (Turboshaft) Rolls-Royce Turbomeca: Adour (Turbofan) RTM322 (Turboshaft) Snecma/Turbomeca: Larzac (Turbofan)

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Adapted from the Wikipedia article [Turbomeca Arriel](https://en.wikipedia.org/wiki/Turbomeca_Arriel) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Turbomeca_Arriel?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.