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
Harbin Z-9
Harbin Z-19
Number built 10,000

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]

The Zhuzhou WZ-8 (Turboshaft) and WJ-9 (Turboprop) was the designation for Turbomeca Arriel production in China.

Applications

Specifications (Arriel 1)

Data from FAA Type Certificate Data Sheet.[3]

General characteristics

  • Type: turboshaft
  • Length: 112.2 cm (44.2 in)
  • Diameter: 60 cm (24 in)
  • Dry weight: 111 kg (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: 5kw/kg approx

See also

Related lists

References

  1. ↑ Gunston 1989, p.170.
  2. ↑ Mark Huber (June 27, 2018). "Safran Boosts Arriel 2D TBO by 25 Percent". AIN online.
  3. ↑ FAA Type Certificate Data Sheet Retrieved: 2 November 2008
  • Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 166.
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