Safran Aneto

Aneto
Type Turboshaft
National origin France
Manufacturer Safran Helicopter Engines
Major applications Leonardo AW189K
Developed from Rolls-Royce Turbomeca RTM322

The Safran Aneto is a turboshaft family targeted for the super-medium and heavy helicopters, developed by Safran Helicopter Engines, unveiled at London's Helitech on 3 October 2017 and covering the 2,500 to 3,000 hp (1,900 to 2,200 kW) range. The first 2,500 shp -1K was selected to power the Leonardo AW189K twin to extend its capabilities, it flew in March 2017 and is scheduled to be introduced in the fourth quarter of 2018. Built upon the Safran Tech 3000 technological demonstrator, it aims to gradually offer up to 15 % better fuel economy over current competitors to improve payload-range and offers 25 % better power density than existing engines of same volume. Offered for new or for existing model, fewer scheduled maintenance tasks, longer maintenance intervals and health monitoring should improve maintainability.[1]

Suited for 8-15 tons helicopters, it is developed from the RTM322: the -1K has a similar architecture but no common parts. The more powerful 3,000+ shp “Dash 3” should appear in the early 2020s and will feature a new compressor and hot section. Parts made by additive manufacturing are used in the gyratory combustion chamber and the inlet guide vane system. Compatible with hybrid and distributed propulsion systems, in cruise flight one of the two engines could be shut down and restarted when needed. In the AW189, it is offered along the incumbent General Electric CT7, needing minor changes to the top-deck structure and engine cowls. Exempted from U.S. International Traffic in Arms Regulations, it could power the AW189’s military derivative, the AW149 or a future attack helicopter based on its dynamic systems.[2]

Developed from a French Aviation Authority study, the Safran Power Pack Eco Mode on the Airbus Helicopters Racer allows it to shut down one of engines in cruise, lowering fuel consumption by 15%, and quickly and automatically reactivate it with an electric starter to its maximum power for acceleration, landing or emergencies.[3]

Applications

Specifications

Data from Aneto-1K, AIN[5]

General characteristics

Components

  • Compressor: three axial stages + one centrifugal stage
  • Combustors: gyratory
  • Turbine: two-stage high-pressure + two-stage power

Performance

  • Maximum power output: 2,544 hp (1,897 kW) (one engine inoperative: 2,977 hp, 2,220 kW)
  • Power-to-weight ratio:

See also

Related development

Comparable engines

Related lists

References

  1. 1 2 "Safran unveils Aneto – its new range of engines for the super-medium and heavy helicopter market" (Press release). Safran. 3 Oct 2017.
  2. ↑ Tony Osborne (Oct 3, 2017). "AW189 First To Get New Safran Turboshaft". Aviation Week Network.
  3. 1 2 Mark Huber (February 27, 2018). "Airbus Selects Safran's Aneto for Racer". AIN.
  4. ↑ Dominic Perry (3 Oct 2017). "Safran launches new Aneto engine on Leonardo AW189". Flightglobal.
  5. ↑ Ian Sheppard (October 3, 2017). "Safran Unveils New Aneto Helicopter Engine Family". AIN.
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