article_snippet.sent: the CYG-11 seaplane uses reduced drag and increased lift from wing-in-ground effect to glide .
article_snippet.sent: these strange vehicles takes advantage of an aerodynamic phenomenon known as the wing-in-ground effect - where lift is increased and drag decreased when an aircraft's wings are close to the ground.
article_snippet.sent: By placing an aircraft's wings low on the fuselage of Two prototype aircraft, this effect is increased and the the result is an aircraft that essentially floats on a cushion of air.
article_snippet.sent: Two prototype aircraft races over the wavetops at a height of between three to five metres (9-15 feet).
article_snippet.sent: the plane can be used like a catamaran initially until the plane builds up enough speed to lift off from the ocean .
article_snippet.sent: Two prototype aircraft is designed to fly at low level between 3 m and 5 m above the surface of the ocean .
article_snippet.sent: Powered by two large propellers at the front of Two prototype aircraft, the CYG-11 can be driven in the sea much like a catamaran.
article_snippet.sent: Once it reaches flight speed Two prototype aircraft's wings will begin to lift the aircraft's wings off the ocean and the aircraft's wings will glide along on a cushion of air.
highlights_snippet.sent: The super-efficient craft uses increased lift and reduced drag from  The super-efficient craft wings to fly 16ft (5m) above thewaves .
  