190130-F-EI321-0110
After recently receiving a new look and modifications at the Ogden Air Logistics Complex, the NF-16D known as VISTA (Variable stability In-flight Test Aircraft), prepares to depart Hill Air Force Base, Utah, Jan 30, 2019. This aircraft is the only one of its kind in the world and is the flag-ship of the United States Air Force Test Pilot School. This F-16 has been highly modified, allowing pilots to change the aircraft flight characteristics and stability to mimic that of other aircraft. (U.S. Air Force photo by Alex R. Lloyd)