 Beginning in the spring of 1999, the Global Hawk performed a series of operational evaluation flights, some of which were remarkable demonstrations of the aircraft's capability.One of the prototypes flew from Eglin Air Force Base in Florida to Alaska and back again, nonstop, in just under 25 hours.In May 2000, a prototype flew up the Atlantic coast of the US from Eglin AFB, transmitting radar images to a US Army ground station at Fort Bragg, North Carolina, and the aircraft carrier USS "George Washington", at dock at Norfolk, Virginia.