J-31 Stealth Jet Still Needs Fifth Generation Engine To Compete With Rivals

Without a Fifth Generational Aero-Engine, the J-31, China’s second fifth-generation
designed by Shenyang Aircraft Corporation, is unable to compete
against Lockheed Martin’s F-35, according to the Guancha Syndicate based
in Shanghai.

The J-31 is currently equipped with two RD-93 engines imported from
Russia. However, the Russian engine was designed for fourth-generation
such as the MiG-29. The thrust of two RD-93 combined cannot
match a single F-135 engine on an F-35 fighter, according to the report.
When compared with the two F-119 engines of F-22 Raptors, the gap is
even wider. In addition, the Russian-built engines also shortened the
range of the J-31.


Pointing out that the J-31 was unable to fly directly from Shenyang
in northeastern China to Guangdong province in the south for the Zhuhai
Airshow, the Guancha Syndicate said that the range of the aircraft is
estimated at no more than 2,000km. This is only half the range of the
J-11 fourth-generation fighter, designed based on the Russian Su-27. It
then indicated that this is why several modifications had been revealed
for the J-31, also designated the FC-31, at the Zhuhai Airshow.

During the last Zhuhai Airshow in 2012, the development of a new
engine called Tianshan was announced by the Aviation Industry
Corporation of China. The thrust of this new engine is estimated to be a
9,500 kilogram-force, which is much more powerful than the RD-93 which
only has an 8,300 kgF. With a new design of vertical tails and
aerodynamic shape, the J-31 will look more like a smaller F-22 then an