Space Test Support and Satellite Environmental Testing Nuclear Weapons Effects Testing. Hypersonic/Long Range Systems Hypersonic/Long Range Systems is a collaborative effort between the Army and its Sister Services to deliver precision-strike dominance on land, sea, in the air and beyond , ranging from hypersonic missiles with a range of more than 1,000 miles, to an upgraded long-barrel howitzer. White Sands Missile Range is helping this leap-ahead technology as it transitions from the science and technology community and into the hands of operators by providing the capability to test, track, and analyze its awesome range and speed. White Sands Missile Range is the largest fully instrumented, open-air test range in the Department of Defense, providing test support to our sister services, allies, coalition partners, and defense technology innovators. Altogether, we constitute 17 percent of all U.S. Army land. All of the following Army installations combined would fit inside the boundaries of White Sands Missile Range: Fort Benning, Fort Bragg, Fort Campbell, Fort Hood, Fort Irwin, Fort Knox, Fort Polk, Fort Sill and Fort Stewart.