According to a report pulished in The Daily Telegraph, Allen's new company named Stratolaunch will start with unnamed space vehicles which will be used to transport government and commercial cargo and satellites and to carry out human missions later on.
Sources said that the spaceship will use engines from six 747 jets and will have a wingspan of 380ft. Moreover, the first test of the aircraft is scheduled to be held in early 2015.
The project was launched after NASA's final Space Shuttle Program ended after 30 years. In 1983 Allen had quit Microsoft to pursue his own dreams. According to Forbes magazine, Allen has wealth worth $13.2 billion making him the 57th richest man in the world.