weasel1962 wrote:PLAAF just revealed the WJ-700 UCAV maiden flight. The UCAV is claimed to be a high altitude, higher-speed (~380 knots), payload and high endurance (20hr) UCAV. Capable of carrying anti-ship missiles (150km ranged C705) and ARMs (100km ranged CM102). Not that stealthy yet.
Imagine J-20s acting as a quarterback for expendable stealthy UCAVs with the same payload/performance above. Sure looks like an evolving role for the J-20 from being just a pure interceptor.
AFAIK the J-20 is a pure interceptor in the same way the F-35 is a pure striker; both of them (even if you go with low 1350 km internal fuel radius for the J-20) can shave fuel range and get fairly good T/W and wing loading figures. As I've stated here, if they can get it to 2000 km on internal fuel, it actually becomes a fairly good defensive air superiority fighter in that it can supercruise (WS-10 is a high bypass engine on the level of the F110, it needs WS-15) within home airspace from a variety of bases. The J-20 might not be superior to either the F-22 or F-35 as an air superiority fighter on a tactical level, but on an operational level, the ability to concentrate J-20s as needed from home basing makes them difficult to engage as the J-20s can attempt defeat in detail using superior speed and superior or comparable agility under low fuel conditions.
That said, the WJ-700 is pretty garbage; it's a UCAV that seems targeted for export in the "Predator Clone" market. Launching C705s means that it's designed to launch short-ranged last-last-generation Chinese AShMs, when they themselves operate YJ-12s that are roughly a clone of the Russian Klub.
More interesting Chinese UCAVs might be the high-speed Anjian drone:

This, however, one suspects won't have a proper weapons bay and might be as crippled as the J-20 when it comes to strike capabilities. The J-20 is a bad striker since its weapons bay is too short to load "proper" Chinese AShMs; it can launch F-35-style AShMs with its weapons bay design, but China, officially, doesn't seem to have operational F-35-type short AShMs. The Anjian UCAV looks as though it'd likely suffer from the same deficit in weapons bay length.