Crazy Planes

Get ready to see some of the biggest, heaviest planes ever made: "A concept aircraft currently under development at Boeing’s Phantom Works Research and Development unit might be the largest airplane to ever fly, but it won’t set any altitude records. Its called the Pelican and it would have a normal cruising altitude of only twenty feet because it uses the concept of ground effect to achieve lift. Performance specifications say this ground effect vehicle (GEV) will have a wingspan of 150 meters and be able to carry up to 1,400 tons of cargo."