First flown in 1981, the  F-117 was kept secret until its first
      operational use in 1989 in Panama.  The F-117's minimal radar
      cross-section and ability to drop precision ordnance place it in a class
      by itself.
      Also known as the  "Wobblin' Goblin", the  Night Hawk flew 1,271
      sorties in during Operation Desert Storm in 1991 achieving an 80% mission
      success rate while suffering no losses or battle damage.
      The designation "F-117" does not fit in the logical "F
      number" series which was restarted at F-1 in 1962 with 11 then
      current fighters being redesignated.  The USAF had allocated F-112
      through F-116 to Soviet fighters acquired through various means.  One
      theory is that the Night Hawk was designated F-117 to draw less attention.