Would appreciate @Blitzo 's thoughts on this matter as I think this is also a plausible reason why they went with a 3-engine design
Hopefully we can get back to reality and realistic assessments until we get a first sight on the J-XD and as such this: Someone on twitter told me yesterday, that "the airport seems already finished many preparation works for the gen6 fighter, and made a huge movable fencing wall around the new big hangar." Can anyone confirm this?
Not gonna do Jack once it gets into the air though. Half the city will be see it and if you take photos of the plane in the air, you can’t be indicted.
If it has 3 engines surely they will call it the J-30.
If the rumor is true, then I think the 3rd engine will be of a different type to allow higher and faster flight. I think Mach 3 super cruise and 80,000 feet would make it a 6th generation fighter.
US is considering using B-21 as NGAD, B-21 has MTOW of 80t and only 2x F-135 with overall T/W <0.5I will say that 3-engine would make more sense for H-20 than J-XD. This entire rumor really is very confusing.
Putting 3 large engine on a "fighter jet" is certainly a huge twist for how air warfare is going.
Maybe there is just no place for another traditional fighter jet in 6th gen, since they expect UCAV to be so good in 10 years. That essentially your 6th gen fighter jet is a super maneuverable AWACS
US is considering using B-21 as NGAD, B-21 has MTOW of 80t and only 2x F-135 with overall T/W <0.5
So if requirement is just for a bomber-like aircraft two WS-15 is more than enough to get MTOW above 50t
If a design uses 3x WS-15 and there are no DEW, it can only mean PLA wants an >50t MTOW aircraft that also have 1:1 T/W, which leads to back to the question why so big.