Area 51 at Groom Lake, Nevada. Upon touchdown, the aircraft was reassembled before undergoing another round of testing prior to the first flight. After four taxi tests, HB1001 was ready for test flights. Operational history HB1001 HB1001 made its first flight on 1 December 1977 at the hands of Lockheed test pilot, Bill Park. He would fly the next four sorties, all chased by a T-38 piloted by Major (later Lieutenant Colonel) Ken Dyson. Dyson, an F-15 Eagle pilot, was previously approached by United States Air Force personnel about the project in 1976. He made his first flight on HB1001 on 17 January 1978, chased by Park. In fact, the two would be the only test pilots of Have Blue, alternating between the demonstrator and the chase plane. Flight test results allowed engineers to refine the FBW system. At the same time, they verified predictions made earlier by aerodynamic engineers on the aircraft's behavior. Flight tests proceeded fairly smoothly until 4 May 1978, when HB1001 was making its 36th flight. The aircraft pitched up just as it made contact with the ground which forced the pilot, Bill Park, to abort the landing and make a second attempt. The impact had however been so hard that the landing gear had become jammed in a semi-retracted position. Efforts to lower the gear were unsuccessful and Bill Park was forced to climb again, and eject when his fuel ran out. The aircraft was destroyed on impact in the vicinity of the Groom Lake facility. Park survived, but suffered a concussion, forcing him to retire from further test flights. Dyson, who was in the chase plane, recounted: "Just before touchdown the airplane pitched up... It seemed it slammed down on the ground real hard... He [Park] raised the gear on the go around, and when he tried to extend it on approach, only one of the mains and the nose wheel came down. All this time, gas was being consumed... I suggested he climb up to 10,000 feet for ejection... He started climbing, but the engine started flaming out, from the lack of fuel, so he ejected." HB1002 At the time of the crash, HB1002 was almost complete, with the lessons learned from the HB1001 incorporated into the aircraft, including the rebuilding of the aft fuselage. HB1002 was distinguished from the prototype in having a gray paint coat. It did not have the flight