I suggest everyone ignore the Sandy Indian troll. Obviously, he's totally clueless. Look at the date of my first citation. It is almost three years old. The debate about Chinese domestic engines was resolved almost three years ago.
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Four new Chinese J-11B Shenyang Flanker fighters with domestic WS-10A engines
New-type Fighters in training (2) - People's Daily Online
"New-type Fighters in training (2)
(China Military Online)
September 17,
2012
Recently，four new-type fighters of an aviation unit of the air force under the Jinan Military Area Command (MAC) of the Chinese People's Liberation Army (PLA) flew to unfamiliar sea waters and organized training on such subjects as electronic confrontation and medium-range missile attack, penetration and assault, valley flight and so on, in a bid to lay a solid foundation for actual combat.
The fighter formation is in hedge-hopping flight. (Photo by Cui Wenbin/Chinamil)"
[Note: Thank you to Greyboy2 for the newslink.]
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Chinese WS-10A engines are already in mass production (see picture below)
Could the WS-10A engine power the J-10, J-11B, and J-15 aircraft? The answer is "yes" if two conditions are met. Firstly, Chinese production of WS-10A engines must be sufficient to meet the demand (including production of parts for maintenance and replacement engines at the end of the expected lifetime) for all three aircraft.
Secondly, I don't know if WS-10A engines are interchangeable with AL-31F engines. If they are not readily interchangeable without modifying the fuselage then the current fighters with AL-31F engines will most likely stay with AL-31F replacement engines.
J-10B Vigorous Dragon flying with WS-10A engine
J-11B flying with WS-10A engines
J-15 Flying Shark with WS-10A engines
To conclude the discussion on the use of domestic WS-10A engines on the J-10, J-11B, and J-15, there is a new photograph of a J-11BS equipped with WS-10A engines.
"A [J-11BS] tandem twin-seat combat-capable training aircraft for J-11B pilots."
[Note: Thank you to SiegeCrossbow for the J-11BS picture.]
