Stratolaunch was conceived as a low earth orbit transport aircraft for a variety of missions. It is the largest composite airplane ever built and is expected to have a max takeoff weight of 1,300,000 pounds, a payload of 550,000 pounds, and a range of about 2,000 nm. Sitting on 28 wheels, it is 238 feet long, 50 feet high and has a wingspan of 385 feet. Unlike most aircraft capable of space flight, Stratolaunch will take off and land from a runway rather than a rocket launch platform.