In what has become an almost annual Christmas tradition, the Chinese military has released the first blurry photos of a brand-new warplane prototype — in this case, Beijing’s first home-built heavy transport. It closely resembles other aircraft in its class including, most notably, the U.S. Air Force’s workhorse C-17. (www.wired.com) 更多...
There are "rules" that need to be followed when designing military cargo planes: 1) Keep the fuselage as close to the ground as possible 2) Since the fuselage sits so low, you need the wings up high, hence high wings 3) Since the wings sit high, you need T-tail configuration to avoid the risk of having unstable air for the tail surfaces 4) Of course it being a cargo plane, and heavy, it needs power to get off the ground, so you get 4 engines. Keeping to these rules, you get very similar looking aircraft and originality goes out the window.
Eh, all military transports for decades have been high wing. If you make one that way you can hardly be accused of stealing. The engines are indigenous and don't appear to be nearly as high-bypass. And going forward from the wingbox the C17's fuselage gets larger while the Y-20 has a clear downward taper.