Researchers at MIT, led by Dr Mark Drela and tasked by NASA, have come up with a double-wide design: instead of the traditional single cylindrical body, two partial cylinders are joined together with three engines at the back of the plane between the doubletail.
It is true that an appreciation might modestly and temporarily slow China's growth as the economy changes gear but, since China's exports contain lots of imported inputs, it is hard to see even a double-digit yuan appreciation sending exports into a tail-spin.