Two prototype aircraft were tested off the coast of Haikou , in China of the Hainan Province . The CYG-11 plane can reach a top speed of 155mph and boasts a maximum range of 930 miles . The super-efficient craft uses increased lift and reduced drag from its wings to fly 16ft ( 5m ) above thewaves . Engineers hope the groundbreaking aircraft could be used on 'motorways of the sea ' in the future .
Two prototype aircraft were tested off the coast of Haikou , in the Hainan Province of China . The CYG-11 plane can reach a top speed of 155mph and boasts a maximum range of 930 miles . The super-efficient craft uses increased lift and reduced drag from its wings to fly 16ft ( 5m ) above thewaves . Engineers hope the groundbreaking aircraft could be used on 'motorways of the sea ' in the future .