(1) activates movement. (2) activates turret controls. VTOL controls left track and elevation. Trim controls right track and traverse. The KRIEG M26 Dragon is a self-propelled railgun based on the M6A4 UPS Ardent. It is manned by a crew of four: two gunners/loaders, a commander, and a driver. Armed with a powerful 2 gigawatt-rated railgun derived from the Stonehenge, it can fire 50-kilogram tungsten darts at speeds of 2,500 meters per second, generating greater impact energy than battleship guns of a century ago at ranges of up to 1,500 kilometers away. Its principal role is long-range counter-battery fire, suppression of enemy air defenses, and long-range divisional fire support. With a four-shot magazine, it can expend it within six seconds after the first shot, and a GPS-guided shot is available.