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Shenyang J-31
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[[File:Image-420778-galleryV9-iyty.jpg|thumb|400px]]The '''Shenyang J-31''' is a fifth generation stealth fighter of Chinese origin, still undergoing an early development phase. It is developed by Shenyang Aircraft Corporation. According to early speculations, the J-31 may be part of the J-XX program of the People's Liberation Army Air Force. The first flight took place on 31st October 2012. == Designation == The aircraft's designation "J-31" has never been officially proven and was based on the number "31001" on the fuselage of the plane. Alternative designations could be "J-21" or "F60". == Design == Shortly before the J-31 was officially unveiled, first photographs of the aircraft have come up on the internet, in September 2012. Unlike the Chengdu J-20, the J-31 doesn't have canards. Additionally, the J-31 shows many similarities with the American F-22 Raptor and F-35 Lightning II and it could be considered as a "twin engine F-35C": the vertical stabilizators look very familiar with the ones used on F-35 and F-22. Interestingly, it features a "Divertless Supersonic Inlet", similar to that on the F-35. Furthermore, the frontal section shares many features with the one of the F-22. The J-31 also features an internal weapons bay, in order to improve stealthiness and aerodynamics. In comparison to the first Chinese Fifth Generation fighter, the [[Chengdu J-20]], it shows to be much smaller in size. According to new information, production of a more refined, second prototype has already begun. The information is based on what was displayed at Zhuhai Airshow 2016.<ref>[http://www.janes.com/article/65359/new-details-emerge-on-shenyang-fc-31-fifth-generation-export-fighter "New details emerge on Shenyang FC-31 fifth-generation export fighter"]</ref> Features of the new prototype include: *Possibility of a Distributed Aperture System (DAS) *Various options regarding internal and external armamement *Electro-optical Target System *In contrast to early beliefs, the new prototype is now featuring a possible Helmet Mounted Display *Possible AESA radar === Early problems === After a first public display at Zhuhai Airshow, the J-31 design revealed problems and flaws in terms of aerodynamics. To be more specific, the aircraft tended to lose a lot of energy while manoeuvring, forcing the pilot to use afterburners in order to keep the aircraft under control. <ref>[http://www.ainonline.com/aviation-news/defense/2014-11-17/chinas-fc-31-fighter-disappoints-first-display "China’s FC-31 Fighter Disappoints in First Display"]</ref> == Role == There are two possibilities, the first one is that the J-31 was designed as a direct competitor to the Chengdu J-20; the second one is that it was designed as a complement to the J-20. With the J-20 on the one hand, being an air-superiority fighter (comparable to the American F-22 Raptor) and the J-31 on the other hand, as a smaller light-weight multirole fighter (comparable to the American F-35 Lightning II). ==General Characteristics== *'''Crew: 1 (pilot)''' *'''Length: 16.9 m (55 ft 5 in)''' *'''Wingspan: 11.5 m (37 ft 9 in)''' *'''Height: 4.8 m (15 ft 9 in)''' *'''Wing area: 40 m2 (430 sq ft)''' *'''Powerplant: 2 × Klimov RD-93 afterburning Turbofans (Presumably domestic engines such as the Guizhou WS-13 would be used for production aircraft.)''' *'''Maximum speed: Mach 1.8''' *'''Combat range: 1,250 km (777 mi; 675 nmi) internal fuel (2000 km one refuel)''' *'''Ferry range: 4,000 km (2,485 mi; 2,160 nmi)''' == References == <references> [[Category:Fighters]] [[Category:Stealth Aircraft]] [[Category:Chinese aircraft]] [[Category:Jet aircraft]] [[Category:Twin engine aircraft]] [[Category:Military]] [[Category:Multiple engine aircraft]]
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