More J-20 info. Cost and development issues.
https://www.strategypage.com/htmw/htair ... 01002.aspxtight. China also revealed that development of the J20 has, cost $4.4 billion as of 2018 and that the construction cost for each aircraft is $110 million. In addition to the manufacturing difficulties, there were performance problems with the prototypes and six production models turned over to the Chinese Air Force by 2018.
Also did you guys know they are having these kinds of
Development issues?
China has had persistent problems developing high-performance jet engines. China has been developing the more powerful (and supercruise ready) WS-15 engine since the 1990s, for a larger aircraft like the J20. Despite a lot of effort, the WS-15 was still not able to work reliably enough for service (rather than a prototype) aircraft. Officials also confirmed rumors that a WS-15 exploded during a 2015 static (on the ground) test. That failure had been a secret but when an engine this big fails by blowing up the incident is difficult to hide. It also turned out that the WS-1