He is confident that, someday, with his crafts maneuverability and energy-saving vortex generator (a device that creates lift much like dragonfly wings) you wont need airplanes anymore.

• 他相信；总有一天；与他船的机动、节能涡发生器(显示器制造电梯很像蜻蜓翅膀)你不用飞机了.