<Kanwa News Dec 10, 2002> Authoritative sources from
the Chinese military aviation industry Group One told Kanwa that some
major progress had been made in the development of the sub-systems
used on the 4th generation stealth fighter, particularly the engine.
The WS10A turbofan engines originally designed for J10A by Shenyang
Liming Motor Company may very likely be installed on this 4th generation
fighter for trial flight. The air test of WS10A had already been completed
on SU27SK, including a total 256 test items.
The sources indicated to Kanwa's correspondent that
the fundamental performance of the WS10A has already attained the
standard of AL31F. The maximum augmented thrust power of AL31FN is
12500kgf, power consumption 0.67kg/kgf.h. Sources based in China also
claimed that in streamlining the design, WS10A is even better than
AL31FN as it focused on reducing the weight. Meanwhile, the upgrading
work paid special attention to the reduction of consumption.
The research of the thrust vector control (TVC) technology
has also been going on for a long time. The basic design idea is close
to the Russian AL31F-TVN TVC engine. That is, China hopes to largely
improve the maneuverability of the engine by adding a TVC nozzle on
WS10A. Chinese Aviation experts emphasized that the Chinese version
of TVC nozzle currently under development can perform 360 degree rotating.
Earlier President Jiang Zemin inspected this project, which is one
of the key aviation development programs during the "ninth five-year
plan. Television images indicate this TVC nozzle can rotate at a range
of +-15 degree, the source says that it has also been planned that
the China-made TVC engine would be upgraded at appropriate time and
installed on J10A in order to " improve the fighter's short-distance
taking-off and landing performance and attain the maneuverability
standard of F35."<Kanwa Digest news Zhuhai>