| 词条 | Airbus RACER | ||||||||||||||||
| 释义 |
The Airbus RACER (Rapid and Cost-Effective Rotorcraft) is an experimental high-speed compound helicopter developed by Airbus Helicopters from the Eurocopter X³. Revealed at the June 2017 Paris air show, final assembly will start in 2019 for a 2020 first flight. Cruising up to {{cvt|400|km/h|knots|0}}, it aims for a 25% cost reduction per distance over a conventional helicopter. DevelopmentOn 20 June 2017 at the Paris air show, Airbus Helicopters revealed a high-speed demonstrator configuration based on the X3. Developed within the Clean Sky 2 research programme, final assembly will start in 2019 for a 2020 first flight.[1] Its aerodynamic configuration was validated in 2017.[5] In February 2018, the {{cvt|2,500|hp}} Safran Aneto-1X was preferred over the RTM322 initially selected, it is 25% more compact for the same power.[1] By October 2018, design of key subsystems was completed before the first components started manufacturing with long-lead items, as the lateral drive shaft production began. The lateral pusher propellers generate thrust and are isolated from passengers during ground operations by the box wings which serve to generate lift at cruise velocity, this allows the main rotor to be slowed by up to 15% as the craft's air speed increases and prevents the rotor blades breaking the sound barrier which would reduce performance. Driven by two engines capable of shutting down and restarting once inflight to save fuel and increase range, it will have a low weight and low maintenance hybrid metallic-composite airframe and lower weight high voltage direct current electrical generation.[3] See also{{Portal|Aviation}}{{Aircontent|related=
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}} References1. ^{{cite news |url= https://www.verticalmag.com/news/airbus-picks-safrans-aneto-engine-racer-compound-demonstrator/ |title= Airbus picks Safran’s Aneto engine for Racer compound demonstrator |date= February 27, 2018 |author= Thierry Dubois |work= Vertical magazine }} {{Eurocopter}}{{Airbus Group aircraft}}{{Gyrodyne}}2. ^1 -->GE's Avio Aero in Italy launched procurement and manufacturing of the lateral gear boxes housings, GE Aviation Systems in UK is building the wing’s titanium cradle, INCAS/Romaero in Romania started manufacturing the composite side panel and Aernnova in Spain the tail parts primary structure.Final assembly in Q4 2019 will precede the 2020 flight demonstration, including 200 flight hours.It will open the flight envelope and assess performance, before demonstrating missions like EMS, SAR and private transport, maturing low-noise flight procedures.{{cite press release |url= https://www.airbus.com/newsroom/press-releases/en/2018/10/racer-high-speed-demonstrator-passes-preliminary-design-review-m0.html |title= Racer high-speed demonstrator passes preliminary design review milestone |date= 16 October 2018 |publisher= Airbus }} 3. ^1 2 3 4 5 6 {{cite press release |url= http://www.airbus.com/newsroom/press-releases/en/2017/06/Airbus-Helicopters-reveals-Racer-high-speed-demonstrator-configuration.html |date= 20 June 2017 |title= Airbus Helicopters reveals Racer high-speed demonstrator configuration |publisher= Airbus }} 4 : Airbus Helicopters aircraft|Compound helicopters|Twin-turbine helicopters|Slowed rotor |
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