@tphuang, could you provide your opinion on the reliability of
gongke101 on CJDBY regarding Chinese engine development? He's been making a few claims recently and they're pretty significant if true. These include:
1. The program to locally produce the AI-222-25
. Probably will be replaced by a program to locally produce the AI-222-25F, which is the afterburning version. The aborted 222-25 copy
is the WS-17 (above link, post 19) but the renewed 25F-copy project will
(post 180).
2. The Taishan program
, to be replaced by its non-afterburning version, currently without a code name but with a possible
(post 83). Confusingly, the Taishan is apparently the WS-13 but he says the
(post 45). Did 624th Institute develop the WS-13E without waiting for the original WS-13 to become ready and has now decided to drop the original WS-13 completely?
3. The WS-13E should have its design finalised in 2021 if all goes well (above link, post 53). That seems a little late to me considering it's a glorified RD-93. They might as well drop the whole WS-13 series and spend the resources to develop an EJ200-class engine.
4. Back in 2004/5, the plan was to have the WS-15 finalise its design by 2020, or 2018 if everything proceeds smoother than expected (above link, post 56). Not sure if the plan has changed since.
5. 606th and 624th
both have a F119-class engine under development, 624th with the WS-15 and 606th with a design
(post 57).
How much of this do you think is credible? He says he's going to begin work at GuiFei soon.
Regarding the Taihang family, someone from CJDBY went to ask an official at the engine booth at Zhuhai and got confirmation that the
, which translates to 137kN. The official also indicated that a 14.5 tonne thrust version is under development.