Air Vehicle 1 (AV-1) was the first Global Hawk aircraft. Built by Teledyne Ryan Aeronautical, it made the family's first flight at Edwards Air Force Base on 28 February 1998 during the Advanced Concept Technology Demonstration. The same physical aircraft later served NASA as Global Hawk 871. NASA's Airborne Science catalog identifies 871 as AV-1 and lists it as retired; Global Hawk 872 (AV-6) is a separate airframe.
Air Vehicle 1 (AV-1) was the first Global Hawk aircraft. Built by Teledyne Ryan Aeronautical, it made the family's first flight at Edwards Air Force Base on 28 February 1998 during the Advanced Concept Technology Demonstration. The same physical aircraft later served NASA as Global Hawk 871. NASA's Airborne Science catalog identifies 871 as AV-1 and lists it as retired; Global Hawk 872 (AV-6) is a separate airframe.