History
As an RTM322 variant, the Aneto is a two spool turboshaft with a three stage axial compressor and a single stage centrifugal compressor turning at 36,300 rpm, a reverse flow annular combustor, a two stage gas generator axial turbine and a two stage axial power turbine with a forward transmission shaft turning at 21,000 rpm. Fitted with an inlet particle separator, its accessory gearbox is driven by the gas generator and the engine is controlled by a FADEC.
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 models, fewer scheduled maintenance tasks, longer maintenance intervals and health monitoring should improve maintainability.
Suited for 8–15 ton helicopters, it is developed from the RTM322: the -1K has a similar architecture but no common parts. 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 as an alternative to 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.
Developed from a French Aviation Authority study, the Safran Power Pack Eco Mode on the Airbus Helicopters Racer allows it to put one of the two engines on standby during cruise flight, lowering fuel consumption by 15%, and quickly and automatically reactivate it with an electric starter to its maximum power for acceleration, landing or emergencies. The Aneto specific fuel consumption should be 10% better than the competing CT7s.
Aneto
- Leonardo AW149
- Leonardo AW189K: Aneto-1K, 2,500 shp; March 2017 first flight, fourth quarter of 2018 introduction.[4]
- Proposed for the Airbus Helicopters X6[10] (suspended)
- Airbus Helicopters Racer high-speed demonstrator: Aneto-1X, 2,500 shp.[9]
- Indian Multi Role Helicopter: Aneto-1H
