Rolls-Royce Turbomeca RTM322: Difference between revisions
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The '''Rolls-Royce Turbomeca RTM322''' is a [[turboshaft]] engine produced by Safran Helicopter Engines. |
The '''Rolls-Royce Turbomeca RTM322''' is a [[turboshaft]] engine currently produced by [[Safran Helicopter Engines]]. The RTM322 was originally conceived and manufactured by [[Rolls-Royce Turbomeca Limited]], a joint venture between [[Rolls-Royce Limited|Rolls-Royce]] and [[Safran Helicopter Engines|Turbomeca]] (now Safran Helicopter Engines). The engine was designed to suit a wide range of military and commercial [[helicopter]] designs. The RTM322 can also be employed in maritime and industrial applications. |
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The '''Safran Aneto''' is a later development targeted for the super-medium and heavy [[helicopter]]s, developed by |
The '''Safran Aneto''' is a later development targeted for the super-medium and heavy [[helicopter]]s, developed by Safran Helicopter Engines covering the {{cvt|2500|to|3000|hp}} range.<!--<ref name=3oct2017PR/>--> |
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==Development== |
==Development== |
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The engine was designed for the [[Boeing AH-64 Apache|Hughes AH-64 Apache]] and [[Sikorsky UH-60 Black Hawk|Sikorsky UH-60 Blackhawk]], competing with the [[General Electric T700]] and the [[Pratt & Whitney Canada PW100]].<!--<ref name=Flight5jan1985>--> |
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The partners shared |
The partners shared the £100 million development costs equally, Rolls-Royce made the [[turbine]]s, the [[combustor]], and the inlet particle separator while Turbomeca produced the [[Axial compressor|axial]]-[[centrifugal compressor]] and [[intake]].<!--<ref name=Flight5jan1985>--> |
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The engine first ran on 15 December 1984, with eight bench [[prototype]]s for 30,000 cycles and 13,000 test hours, and four for flight tests, initially aiming for [[type certificate|type certification]] to be issued in 1987.<ref name="Flight5jan1985">{{cite magazine |url= https://www.flightglobal.com/FlightPDFArchive/1985/1985%20-%200048.PDF |title= First RTM 322 runs |magazine= Flight International |date= 5 January 1985}}</ref> |
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The first order for the RTM322 was received in 1992 to power 44 [[Royal Navy]] [[AgustaWestland AW101|AugustaWestland Merlin HM1]]s which subsequently entered service in 1998.<ref>{{cite web |url= http://www.rolls-royce.com/defence/products/helicopters/rtm_322.jsp |title= RTM322| access-date = 2009-03-16 | publisher = Rolls-Royce plc}}</ref> |
The first order for the RTM322 was received in 1992 to power 44 [[Royal Navy]] [[AgustaWestland AW101|AugustaWestland Merlin HM1]]s which subsequently entered service in 1998.<ref>{{cite web |url= http://www.rolls-royce.com/defence/products/helicopters/rtm_322.jsp |title= RTM322| access-date = 2009-03-16 | publisher = Rolls-Royce plc}}</ref> |
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Over 1,100 engines are in service, having logged over one million flight hours, powering 60% of the AW101 fleet and 80% of in-service |
Over 1,100 engines are in service, having logged over one million flight hours, powering 60% of the [[AgustaWestland AW101|Agusta-Westland AW101]] fleet and 80% of in-service [[NHIndustries NH90|NH90]]<nowiki/>s.<ref name="SafranRTM322">{{cite web |url= https://www.safran-helicopter-engines.com/helicopter-engines/over-2000-shp/rtm322 |work= Over 2,000 shp Propulsion solution |title= RTM322 |publisher= Safran Helicopter Engines}}</ref> |
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In 2013, Turbomeca (part of the [[Safran|Safran Group]], and now known as Safran Helicopter Engines) acquired the entire programme, becoming responsible for both production and product support.<ref name="SafranRTM322">{{cite web |url= https://www.safran-helicopter-engines.com/helicopter-engines/over-2000-shp/rtm322 |work= Over 2,000 shp Propulsion solution |title= RTM322 |publisher= Safran Helicopter Engines}}</ref> Safran Helicopter Engines has since developed a new engine derived from the RTM322, known as the Aneto. |
In 2013, Turbomeca (part of the [[Safran|Safran Group]], and now known as Safran Helicopter Engines) acquired the entire programme, becoming responsible for both production and product support.<ref name="SafranRTM322">{{cite web |url= https://www.safran-helicopter-engines.com/helicopter-engines/over-2000-shp/rtm322 |work= Over 2,000 shp Propulsion solution |title= RTM322 |publisher= Safran Helicopter Engines}}</ref> Safran Helicopter Engines has since developed a new engine derived from the RTM322, known as the Aneto. |
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[[File:Safran aneto.png|thumb|Safran Aneto]] |
[[File:Safran aneto.png|thumb|Safran Aneto]] |
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The first 2,500 shp -1K was selected to power the [[AgustaWestland AW149|Leonardo AW149]] and [[AgustaWestland AW189|Leonardo AW189K]] twin to extend its capabilities, it flew in March 2017 and |
The first 2,500 shp -1K was selected to power the [[AgustaWestland AW149|Leonardo AW149]] and [[AgustaWestland AW189|Leonardo AW189K]] twin to extend its capabilities, it flew in March 2017 and was scheduled to be introduced in the fourth quarter of 2018.<ref name="3oct2017PR">{{cite press release |url= https://www.safran-helicopter-engines.com/media/safran-unveils-aneto-its-new-range-engines-super-medium-and-heavy-helicopter-market-20170929 |title= Safran unveils Aneto – its new range of engines for the super-medium and heavy helicopter market |publisher= Safran |date= 3 Oct 2017}}</ref> |
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The more powerful 3,000+ shp “Dash 3” should appear in the early 2020s and will feature a new compressor and hot section.<ref name="AvWeek3oct2017">{{cite news |url= http://aviationweek.com/technology/aw189-first-get-new-safran-turboshaft |title= AW189 First To Get New Safran Turboshaft |date= Oct 3, 2017 |author= Tony Osborne |work= Aviation Week Network}}</ref> |
The more powerful 3,000+ shp “Dash 3” should appear in the early 2020s and will feature a new compressor and hot section.<ref name="AvWeek3oct2017">{{cite news |url= http://aviationweek.com/technology/aw189-first-get-new-safran-turboshaft |title= AW189 First To Get New Safran Turboshaft |date= Oct 3, 2017 |author= Tony Osborne |work= Aviation Week Network}}</ref> |
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The required documentation |
The required documentation was expected to be handed to the [[European Aviation Safety Agency|EASA]] in early 2019 for a second quarter certification.<ref name="Flight17oct2018">{{cite news |url= https://www.flightglobal.com/news/articles/leonardo-still-waiting-on-launch-customer-for-aw189k-452779/ |title= Leonardo still waiting on launch customer for AW189K |date= 17 Oct 2018 |author= Dominic Perry |work= Flightglobal}}</ref> |
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By October 2018, the programme had accumulated 4,000 hours, including 105 hours of flight time. Sikorsky |
By October 2018, the programme had accumulated 4,000 hours, including 105 hours of flight time. In 2018 Sikorsky was considering [[Re-engine|re-engining]] its [[General Electric T700|CT7]]-powered [[Sikorsky S-92|S-92]].<ref name="Flight17oct2018engines">{{cite news |url= https://www.flightglobal.com/news/articles/safran-powering-ahead-with-helicopter-engine-program-452782/ |title= Safran powering ahead with helicopter engine programmes |date= 17 Oct 2018 |author= Dominic Perry |work= Flightglobal}}</ref> |
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The {{cvt|1063|kW}} Aneto-1K was added on the RTM 322 [[type certificate]] on 12 December 2019.<ref name="TCDS">{{cite web |url= https://www.easa.europa.eu/en/document-library/type-certificates/engine-cs-e/easae009-rtm-322-aneto-1-series-engines |title= Type-certificate data sheet No. E. 009 for RTM 322 / ANETO-1 series engines |publisher= EASA |date= 6 May 2020}}</ref> |
The {{cvt|1063|kW}} Aneto-1K was added on the RTM 322 [[type certificate]] on 12 December 2019.<ref name="TCDS">{{cite web |url= https://www.easa.europa.eu/en/document-library/type-certificates/engine-cs-e/easae009-rtm-322-aneto-1-series-engines |title= Type-certificate data sheet No. E. 009 for RTM 322 / ANETO-1 series engines |publisher= EASA |date= 6 May 2020}}</ref> |
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Built upon the Safran Tech 3000 technological demonstrator, it aims to gradually offer up to 15% better [[Fuel economy in aircraft|fuel economy]] over current competitors to improve [[payload-range]] and offers 25% better [[power density]] than existing engines of same volume.<!--<ref name=3oct2017PR/>--> Offered for new or for existing models, fewer scheduled maintenance tasks, longer maintenance intervals and health monitoring should improve [[maintainability]].<ref name="3oct2017PR">{{cite press release |url= https://www.safran-helicopter-engines.com/media/safran-unveils-aneto-its-new-range-engines-super-medium-and-heavy-helicopter-market-20170929 |title= Safran unveils Aneto – its new range of engines for the super-medium and heavy helicopter market |publisher= Safran |date= 3 Oct 2017}}</ref> |
Built upon the Safran Tech 3000 technological demonstrator, it aims to gradually offer up to 15% better [[Fuel economy in aircraft|fuel economy]] over current competitors to improve [[payload-range]] and offers 25% better [[power density]] than existing engines of same volume.<!--<ref name=3oct2017PR/>--> Offered for new or for existing models, fewer scheduled maintenance tasks, longer maintenance intervals and health monitoring should improve [[maintainability]].<ref name="3oct2017PR">{{cite press release |url= https://www.safran-helicopter-engines.com/media/safran-unveils-aneto-its-new-range-engines-super-medium-and-heavy-helicopter-market-20170929 |title= Safran unveils Aneto – its new range of engines for the super-medium and heavy helicopter market |publisher= Safran |date= 3 Oct 2017}}</ref> |
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Suited for 8–15 ton helicopters, it is developed from the RTM322: the -1K has a similar architecture but no common parts.<!--<ref name=AvWeek3oct2017/>--> Parts made by [[additive manufacturing]] are used in the gyratory [[combustion chamber]] and the inlet guide vane system.<!--<ref name=AvWeek3oct2017/>--> Compatible with [[Hybrid electric vehicle#Aircraft|hybrid]] and [[distributed propulsion]] systems, in cruise flight one of the two engines could be shut down and restarted when needed.<!--<ref name=AvWeek3oct2017/>--> 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 |
Suited for 8–15 ton helicopters, it is developed from the RTM322: the -1K has a similar architecture but no common parts.<!--<ref name=AvWeek3oct2017/>--> Parts made by [[additive manufacturing]] are used in the gyratory [[combustion chamber]] and the inlet guide vane system.<!--<ref name=AvWeek3oct2017/>--> Compatible with [[Hybrid electric vehicle#Aircraft|hybrid]] and [[distributed propulsion]] systems, in cruise flight one of the two engines could be shut down and restarted when needed.<!--<ref name=AvWeek3oct2017/>--> 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.<ref name="AvWeek3oct2017">{{cite news |url= http://aviationweek.com/technology/aw189-first-get-new-safran-turboshaft |title= AW189 First To Get New Safran Turboshaft |date= Oct 3, 2017 |author= Tony Osborne |work= Aviation Week Network}}</ref> |
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Developed from a [[French Aviation Authority]] study, the Safran Power Pack Eco Mode on the [[Eurocopter X3#RACER|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.<ref name="AIN27feb2018">{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2018-02-27/airbus-selects-safrans-aneto-racer |title= Airbus Selects Safran's Aneto for Racer |author= Mark Huber |date= February 27, 2018 |work= AIN}}</ref> The Aneto [[Brake-specific fuel consumption|specific fuel consumption]] should be 10% better <!--original ref is "higher" but it must be a mistake as the younger RTM322 has a 255 g/kW/h SFC compared to the 263-283 g/kW/h older CT7--> than the competing [[GE T700|CT7]]s.<ref name="Flight17oct2018" /> |
Developed from a [[French Aviation Authority]] study, the Safran Power Pack Eco Mode on the [[Eurocopter X3#RACER|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.<ref name="AIN27feb2018">{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2018-02-27/airbus-selects-safrans-aneto-racer |title= Airbus Selects Safran's Aneto for Racer |author= Mark Huber |date= February 27, 2018 |work= AIN}}</ref> The Aneto [[Brake-specific fuel consumption|specific fuel consumption]] should be 10% better <!--original ref is "higher" but it must be a mistake as the younger RTM322 has a 255 g/kW/h SFC compared to the 263-283 g/kW/h older CT7--> than the competing [[GE T700|CT7]]s.<ref name="Flight17oct2018" /> |
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Revision as of 21:12, 15 July 2024
| RTM322 | |
|---|---|
| |
| RTM322 cutout at Le Bourget 2009 | |
| Type | Turboshaft |
| Manufacturer | Rolls-Royce Turbomeca Limited then Safran Helicopter Engines |
| First run | 15 December 1984[1] |
| Major applications | AgustaWestland Apache AgustaWestland AW101 NHI NH90 |
The Rolls-Royce Turbomeca RTM322 is a turboshaft engine currently produced by Safran Helicopter Engines. The RTM322 was originally conceived and manufactured by Rolls-Royce Turbomeca Limited, a joint venture between Rolls-Royce and Turbomeca (now Safran Helicopter Engines). The engine was designed to suit a wide range of military and commercial helicopter designs. The RTM322 can also be employed in maritime and industrial applications.
The Safran Aneto is a later development targeted for the super-medium and heavy helicopters, developed by Safran Helicopter Engines covering the 2,500 to 3,000 hp (1,900 to 2,200 kW) range.
Development
The engine was designed for the Hughes AH-64 Apache and Sikorsky UH-60 Blackhawk, competing with the General Electric T700 and the Pratt & Whitney Canada PW100. The partners shared the £100 million development costs equally, Rolls-Royce made the turbines, the combustor, and the inlet particle separator while Turbomeca produced the axial-centrifugal compressor and intake.
The engine first ran on 15 December 1984, with eight bench prototypes for 30,000 cycles and 13,000 test hours, and four for flight tests, initially aiming for type certification to be issued in 1987.[1]
The first order for the RTM322 was received in 1992 to power 44 Royal Navy AugustaWestland Merlin HM1s which subsequently entered service in 1998.[2] Over 1,100 engines are in service, having logged over one million flight hours, powering 60% of the Agusta-Westland AW101 fleet and 80% of in-service NH90s.[3]
In 2013, Turbomeca (part of the Safran Group, and now known as Safran Helicopter Engines) acquired the entire programme, becoming responsible for both production and product support.[3] Safran Helicopter Engines has since developed a new engine derived from the RTM322, known as the Aneto.
Safran Aneto
The first 2,500 shp -1K was selected to power the Leonardo AW149 and Leonardo AW189K twin to extend its capabilities, it flew in March 2017 and was scheduled to be introduced in the fourth quarter of 2018.[4] The more powerful 3,000+ shp “Dash 3” should appear in the early 2020s and will feature a new compressor and hot section.[5] The required documentation was expected to be handed to the EASA in early 2019 for a second quarter certification.[6] By October 2018, the programme had accumulated 4,000 hours, including 105 hours of flight time. In 2018 Sikorsky was considering re-engining its CT7-powered S-92.[7]
The 1,063 kW (1,426 hp) Aneto-1K was added on the RTM 322 type certificate on 12 December 2019.[8]
Design
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 control by a FADEC.[8]
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.[4]
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 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.[5]
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.[9] The Aneto specific fuel consumption should be 10% better than the competing CT7s.[6]
Applications
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[11]
Specifications
| Variant[8] | RTM322-01/1 | RTM322-01/9 | Aneto-1K |
|---|---|---|---|
| Type | Turboshaft | ||
| Compressor | Three axial stages + one centrifugal stage | ||
| Combustor | Reverse flow annular | ||
| Turbine | Two-stage high-pressure + two-stage power | ||
| Length | 1,171–1,181 mm (46.1–46.5 in) | ||
| Diameter | 615–708 mm (24.2–27.9 in) | ||
| Dry weight | 255 kg (562 lb) | 232 kg (511 lb) | 260 kg (570 lb) |
| Take-off power | 1,611 kW (2,160 hp) | 1,611 kW (2,160 hp) | 1,063 kW (1,426 hp)[a] |
| Gas generator speed | 36,300 rpm | ||
| Power turbine speed | 20,900 rpm | 20,841 rpm | 21,000 rpm |
| Power:weight ratio | 6.1 kW/kg (3.7 hp/lb) | 6.9 kW/kg (4.2 hp/lb) | 4.1 kW/kg (2.5 hp/lb) |
| BSFC | 255 g/(kW⋅h) 0.420 lb/(hp⋅h)[12] |
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- ^ one engine inoperative: 1,572 kW (2,108 hp)
See also
Comparable engines
Related lists
References
- ^ a b "First RTM 322 runs" (PDF). Flight International. 5 January 1985.
- ^ "RTM322". Rolls-Royce plc. Retrieved 16 March 2009.
- ^ a b "RTM322". Over 2,000 shp Propulsion solution. Safran Helicopter Engines.
- ^ a b c "Safran unveils Aneto – its new range of engines for the super-medium and heavy helicopter market" (Press release). Safran. 3 October 2017.
- ^ a b Tony Osborne (3 October 2017). "AW189 First To Get New Safran Turboshaft". Aviation Week Network.
- ^ a b Dominic Perry (17 October 2018). "Leonardo still waiting on launch customer for AW189K". Flightglobal.
- ^ Dominic Perry (17 October 2018). "Safran powering ahead with helicopter engine programmes". Flightglobal.
- ^ a b c "Type-certificate data sheet No. E. 009 for RTM 322 / ANETO-1 series engines". EASA. 6 May 2020.
- ^ a b Mark Huber (27 February 2018). "Airbus Selects Safran's Aneto for Racer". AIN.
- ^ Dominic Perry (3 October 2017). "Safran launches new Aneto engine on Leonardo AW189". Flightglobal.
- ^ alphadefense.in (15 July 2024). "Exclusive: ANETO–1H Engine for IMRH and DBMRH". alphadefense.in. Retrieved 15 July 2024.
- ^ "Gas Turbine Engines" (PDF). Aviation Week. January 2008.
External links
Wikimedia Commons has media related to Rolls-Royce Turbomeca RTM322.