Shenyang Unveils J-31 China's 2nd 5th Generation Stealth Fighter Jet

China's J-31 Stealth Fighter Jet

 China's Sheyang Aircraft Corporation(SAC) one of the leading aircraft 

design and manufacturing corporations of China’s aviation industry and 

a competitor of Chengdu Aircraft Corporation(CAC) Which is the maker 

of china's first low  observable or stealth Fighter J-20 Black Eagle 

has Unveils its J-31 or J-21 Stealth Fighter Through leaking the 

images of J-21 or J-31 on internet.

China's J-31 Stealth Fighter Jet

The numerous images of the J-31 or J-21 show that the aircraft is very 

different from the large, canard-delta J-20 Black Eagle. The Shenyang 

fighter appears to be much smaller than the J-20, with about two-

thirds as much installed power. It is a quad-tail design with a 

moderately swept clipped-delta wing and large canted vertical tails, 

with a similar overall layout to the Lockheed Martin F-22—but more 

like the F-35A Joint Strike Fighter in terms of overall size. Weapon 

bays occupy the entire lower body aft of the inlets and ahead of the 

engine bays. Flight controls are conventional, with separate rudders 

and single-piece flaperons.

As in the case of the J-20 Black Eagle, most of the stealth-shaping 

techniques are very similar to those on Lockheed Martin fighters, but 

the engine nozzles are conventional. The nozzle shape on the prototype 

is close to that of the Guizhou WS-13 or Klimov RD-93 engine which is  

install on the Chengdu JF-17 fighter, minus the tapered “collar” that 

fairs the latter's nozzle into the aft fuselage. Thrust vectoring has 

been studied in China but has not yet been demonstrated in flight.

China's J-31 Stealth Fighter Jet

One common feature of the J-20 and J-31 is that both, from images seen 

to date, appear to be beyond an “X-plane” stage. Both are equipped 

with weapon bays; both are full-scale demonstrators, and neither 

appears to use any components of existing aircraft. However, the 

timing of the development of operational variants and full-scale 

production remains uncertain. China is continuing the development of 

conventional non-stealthy fighters, and it remains to be seen when 

industry there can start producing competitive domestic engines and 

break the nation's dependency on imported Russian power. (So far, all 

production JF-17s have been RD-93-powered although a Chinese 

replacement, the Guizhou WS-13, is under development.)

The J-31 bears a  resemblance to Lockheed Martin’s F-35, and even 

reportedly has the codename F-60. Though absolutely no characteristics 

of the prototype have been unveiled, one major difference is obvious: 

unlike its American relative, China’s F-60 has two engines.