Fourth Atlas-V Spaceplane Launch Heralds X-37B Program Shift As Centaur To Deploy Naval Satellites at Higher Inclination

The X-37B Orbital Test Vehicle (OTV) at Vandenberg Air Force Base after completing 674 days in space. A total of three X-37B missions have been completed, totaling 1,367 days on orbit. OTV-4, launching on the AFSPC-5 mission May 20, is more focused on military spaceplane payload development instead of X-37B flight testing of its [...]