A ground effect vehicle (GEV) uses the "ground effect," which is the decrease in aerodynamic drag that an object experiences when it approaches a surface to achieve lift and boost efficiency. This air cushion between the surface and the object reduces drag and enables the object to gain lift at lower speeds. One famous example of this kind of vehicle was the Soviet-era ekranoplan which could travel only a few meters above the water's surface and had a massive, 70-meter-long wing. The vehicle, built for military applications such as moving people and equipment over water, could move at speeds up...