NGAD demonstrator aircraft. I think it is safe to say that the latest versions of these aircraft would be significantly superior in terms of all their core elements, especially low observables and engine design. Subsystem technologies, including sensors and communications, and more, are also likely to be ahead of their Chinese counterparts. As is the ability to integrate all these elements together and fuse their combined capabilities into a single usable package, one that can fold into a highly networked joint force operation.