Meh, until the WS-15 debuts, I saw what I needed to see.
J-20 5th Generation Fighter VII
- Thread starter siegecrossbow
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by78
General
J-20's main wheel and brake assembly.
Us: gosh, it would sure be nice if we could get a look at J-20's cockpit, or maybe its radar or ESM suite
Them: J-20's main wheel and brake assembly, take it or leave it
But in all seriousness, it's interesting stuff, if amusingly on brand for the PLA. They know exactly what is useful to reveal and they're actively choosing not to show it.
This one should be posted in the PLAAF breaking news thread.J-20's brake assembly.
It looks like an old-school variable flap ejector nozzle, from 1960s Mach 2+ turbojets.
This used two sets of exhaust petals, an inner ring (engine exhaust) surrounded by bypass air from around the engine, and sometimes also tertiary air via blow-in doors, both sets of petals varying in size.
WS-10 exhaust inner ring
The WS-10 inner nozzle looks an awful lot like the D-30F6 nozzle on the Su-47, down to the (AFAIK unique) blow-in doors on the inner ring of petals.
Below is the late 1960s J-79-10 guided expansion nozzle, which is about the best variable flap ejector type nozzle design before the general switch to modern iris type nozzles.
Of modern engines, the M-88 springs to mind as still using an ejector-type nozzle.
If the genesis of the WS-10 is traced to a GE CFM56 core united to a new afterburner inspired from, say, R-29-300 or J-79 engine, this design choice could make sense historically.
Sorry for one liner but i've to ask, Does anyone knows thrust of WS-10C engine installed on J-20.
About 155 kilonewtons I think.
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