Subscribe to download
Boeing X-37B Orbital Test Vehicle

1 - toggle bay doors
2 - deploy arm
3 - toggle deploy direction (in/out)

The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. It is boosted into space by a launch vehicle, then re-enters Earth's atmosphere and lands as a spaceplane. The X-37 is operated by the United States Space Force for orbital spaceflight missions intended to demonstrate reusable space technologies. It is a 120%-scaled derivative of the earlier Boeing X-40. The X-37 began as a NASA project in 1999, before being transferred to the U.S. Department of Defense in 2004. Its first flight was during a drop test in 2006. X-37s have completed five orbital missions.

The spaceplane's first mission, USA-212, was launched in April 2010 and returned to Earth in December 2010. A second X-37 was launched on mission USA-226 in March 2011 and returned in June 2012. The third mission was USA-240, which launched in December 2012 and landed in October 2014. The fourth mission, USA-261, launched in May 2015 and landed in May 2017. The fifth and latest X-37 mission, USA-277, was launched on 7 September 2017, and was the longest X-37 mission to date, landing on 27 October 2019 after 780 days in orbit. - Wiki