The nose gear oleo strut seems unusually long. Could it be that the nose gear is specifically designed to Compress a lot under catapult pull, and then forcefully Un compress at the end of the catapult run to help the aircraft pitch up? Recall the McDonnell Douglas F-4K has precisely this feature to help it take off from british carriers. If this feature indeed exists on the Chinese AWAC, It suggest the aircraft is very heavy, much heavier than E-2, and right on the edge of the catapult’s ability to launch it.