Safran Arrano

{{Short description|Turboshaft engine for helicopters}} {{infobox aero engine | name = Arrano | image = Airbus Helicopters, F-WWPL, Airbus Helicopters H160 (49579577323).jpg | caption = The Arrano is the default engine option powering the Airbus Helicopters H160 |engine_type=Turboshaft |manufacturer= Safran Helicopter Engines |national_origin=France |first_run=February 2014<ref name=arrano/> |major_applications= Airbus Helicopters H160 |number_built = |developed_from = |developed_into = |variants_with_their_own_articles = }} {{update|date=July 2025}} The '''Safran Arrano''' is a turboshaft engine for two-to-three ton single-engine and four-to-six ton twin-engine helicopters, developed by Safran Helicopter Engines, outputting {{cvt|1100|to|1300|hp}}.

== Development == First bench tested in February 2014 in Bordes, Pyrénées-Atlantiques, its thermodynamic core comes from the Clean Sky Tech 800 demonstrator, first tested in April 2013.<ref name="arrano" /> It powers the Airbus Helicopters H160 which made its maiden flight in Marignane on 27 January 2016.<ref>{{cite press release |url= https://www.safran-helicopter-engines.com/media/h160-completes-first-flight-turbomeca-arrano-20160127 |title= H160 completes first flight with Turbomeca Arranot |publisher= Safran |date= 27 Jan 2016}}</ref>

By October 2017, it has amassed 4,000h of testing and 700h of flight time, the first production units should be delivered in early 2018 and the H160 should enter service in 2019. It passed blade-out tests, continued operation with no lubrication, altitude trials in 2016 in Saclay and in 2017 endurance should be tested in all operating conditions for certification.<ref name=Flight4oct2017>{{cite news |url= https://www.flightglobal.com/news/articles/safran-nears-certification-for-arrano-helicopter-eng-441805/ |title= Safran nears certification for Arrano helicopter engine |date= 4 Oct 2017 |author= Dominic Perry |work= Flightglobal}}</ref> By October 2018, the programme had accumulated 7,500h, including 1,500h of flight time, certification testing was close to the end and most of the documentation should be submitted by the end of the year.<ref name="Flight17oct2018">{{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>

The turboshaft received its type certificate during the June 2019 Paris Air Show, before EASA approval for the H160 planned for the fourth quarter and first delivery to a US customer for corporate transport in May 2020.<ref>{{cite news |url= https://www.flightglobal.com/news/articles/paris-safran-secures-arrano-engine-approval-459122/ |title= Safran secures Arrano engine approval |date= 19 June 2019 |author= Dominic Perry |work= FlightGlobal}}</ref>

== Design == It should reduce brake specific fuel consumption by 10 to 15% compared to previous engines, contribute to increase new helicopters payload-range performance, with reduced size and is designed to facilitate maintenance and repairs. In cruise, its thermodynamic cycle is improved by variable-pitch inlet guide vanes above the compressor. Direct metal laser sintering (selective laser melting) is used for serial production of the combustion chamber injectors.<ref name="arrano">{{cite web |url= https://www.safran-helicopter-engines.com/helicopter-engines/1000-2000-shp/arrano |title= Arrano |publisher= Safran Helicopter Engines}}</ref>

== Applications == * Airbus Helicopters H160

== Specifications == {{jetspecs| |ref=EASA<ref name="TCDS">{{cite web |url= https://www.easa.europa.eu/sites/default/files/dfu/TCDS%20ARRANO%201%20Initial%20Issue.pdf |title= Type certificate data sheet E.095 for ARRANO 1 engine series |date= 18 June 2019 |publisher= EASA |access-date= 20 June 2019 |archive-date= 20 June 2019 |archive-url= https://web.archive.org/web/20190620071130/https://www.easa.europa.eu/sites/default/files/dfu/TCDS%20ARRANO%201%20Initial%20Issue.pdf |url-status= dead }}</ref> |type=turboshaft |length={{cvt|1219|mm}} |diameter={{cvt|817*623.2|mm}} |weight={{cvt|175.1|kg}} |compressor=annular inlet integrating inlet guide vanes, two-stage centrifugal compressor (44,139 RPM) |combustion= reverse flow combustion chamber, controlled by a Full Authority Digital Engine Control |turbine=single-stage high pressure turbine and single-stage low pressure turbine (power turbine) driving a reduction gearbox at the front of the engine (7,939 RPM power drive) |fueltype= |oilsystem= |power= {{cvt|851|kW}} (at takeoff, 30s one engine inoperative: {{cvt|1061|kW}}) |thrust= |compression= |aircon= |turbinetemp= 800°C Gas generator exhaust temperature (30s one engine inoperative: 991°C) |fuelcon= |specfuelcon= |power/weight={{cvt|{{#expr:851/175.1round2}}|kW/kg}} |thrust/weight= }}

== See also == {{aircontent |see also= |related=

|lists=

|similar engines= * Pratt & Whitney Canada PW200<ref name="Flight18Feb2015">{{cite news |url= http://www.flightglobal.com/news/articles/airbus-helicopters-drops-pw210-engine-on-39repositioned39-409180/ |title= Airbus Helicopters drops PW210 engine on 'repositioned' X4 |author= Dominic Perry |work= Flight International |date= 18 February 2015}}</ref> * Pratt & Whitney Canada PT6<ref name="Flight18Feb2015" /> }} * HAL HTSE-1200

== References == {{reflist}}

== External links == * {{official website|https://www.safran-helicopter-engines.com/helicopter-engines/1000-2000-shp/arrano}}

Category:2010s turboshaft engines Aneto