April 13 first flew world’s largest plane Stratolaunch Model 351. Flight at an altitude of 5 km lasted for 2.5 hours and ended with a successful landing.
Wingspan dvuhfyuzelyazhny giant is a record of 117 meters, and to raise into the air, used 6 engines — it is based on two decommissioned Boeing 747. Model 351 was created for the withdrawal of the spacecraft into orbit.
During the development of the Stratolaunch Model 351, which lasted 8 years, its creators encountered a problem: the death of the founder and inspirer of the project Paul Allen, and the emergence of competitors, who are able to deliver cheap ships into space. Example — rocket with SpaceX returned accelerators.