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

China's J-31 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
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
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.


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