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
Area 51 redactor appears to have missed one mention: page 15 (page 17 in the PDF), section No. 2 ends "Three OXCART aircraft and the necessary task force personnel will be deployed from Area 51 to Kadena." On 25 June 2013, CIA released an official history of the U-2 and OXCART projects that officially acknowledged the existence of Area 51. The release was in response to a Freedom of Information Act request submitted in 2005 by Jeffrey T. Richelson of George Washington University's National Security Archive, and contain numerous references to Area 51 and Groom Lake, along with a map of the