The launch customer of SpaceShipTwo is Virgin Galactic , who have ordered five vehicles . The first SS2 was named VSS '' Enterprise '' . The " VSS " prefix stands for " Virgin Space Ship " . VSS '' Enterprise '' was the first to fly ; it was destroyed in a crash on 31 October 2014 . The build of VSS '' Unity '' was about 65 percent complete in early November 2014 , and Virgin Galactic expected it to be complete in 2015 . It was unveiled in February 2016 and performed its first powered flight in April 2018 . The third SpaceShipTwo was expected to commence construction by the end of 2015
destroyed in a crash
VSS Enterprise crash
SpaceShipTwo