EDWARDS AIR FORCE BASE, Calif. (AFPN) -- The F-22 Raptor passed the 400-flight-hour mark here recently. Since the summer of 1998, the Edwards F-22 Combined Test Force has flown two aircraft during 183 evaluation missions. Raptors 4001 and 4002 have meet four out of five Department of Defense flight-test requirements for 1999. The last is expected to be met in December. (Air Force photo)
