Area 51 YF-117A. At 6:05 am on 18 June 1981 Lockheed Skunk Works test pilot Hal Farley lifted the nose of YF-117A "79–780"' off the runway of Area 51. Meanwhile, Tactical Air Command (TAC) decided to set up a group-level organization to guide the F-117A to an initial operating capability. That organization became the 4450th Tactical Group (Initially designated "A Unit"), which officially activated on 15 October 1979 at Nellis AFB, Nevada, although the group was physically located at Area 51. The 4450th TG also operated the A-7D Corsair II as a surrogate trainer for the F-117A, and these operations continued until
Texas State Highway Spur 51 action was deferred, and later this plan of cancelling Spur 51 was gone. Texas State Highway Spur 51 Spur 51 is a state highway spur in Denton, Texas. It starts at State Highway 114 (SH 114), and ends on Elizabethtown Road. The road is not signed, but the designation has not been cancelled. The number originally belonged to Loop 51, designated on September 25, 1939, from U.S. Highway 77 (US 77) through Yoakum to US 77 (now Alternate US 77). The designation was changed to Business US 77-Q on June 21, 1990. The current route was designated on August 28,