The impression here is of a big, long aircraft, 70+ feet from nose to tail, which would make sense for a number of reasons. Rob Hewson at Janes has reported that Russia has supplied 32,000-pound thrust 117S engines for the J-20, which would be adequate for an aircraft in the 80,000 pound class with perhaps lower supercruise performance and agility than an F-22, but with larger weapon bays and more fuel writes aerospace analyst Bill Sweetman, editor of Aviation Week/DTI.
I wonder if the weapons bay is big enough to accommodate a Harpoon-class anti-ship missile? Perhaps nuke-tipped?
It will make a bigger hole in the ground.