Editing Lockheed Have Blue (section)

=== 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.<ref name=Crickmore_p19/> HB1002 was distinguished from the prototype in having a gray paint coat. It did not have the flight test instrumentation boom present on HB1001's nose. As the aircraft was used to test RCS returns, the unstealthy spin recovery chute was removed, and the aircraft was covered in radar-absorbent material.<ref name=J&L_p232/> It first flew on 20 July 1978 with Dyson at the controls, who would be the only pilot to fly the aircraft.<ref name=Crickmore_p22>Crickmore 2003, p.&nbsp;22.</ref>

HB1002 was lost on 11 July 1979 during the aircraft's 52nd flight. A [[Hydraulic fluid|hydraulic]] leak caused an engine fire, resulting in the loss of [[hydraulic pressure]], which in turn caused severe [[Flight dynamics (aircraft)|pitch]] [[oscillation]]s. The pilot ejected safely, and the aircraft was destroyed.<ref name=J&L_p233>Jenkins and Landis 2008, p.&nbsp;233.</ref> It was later discovered that an engine exhaust clamp had loosened, allowing the hot exhaust to migrate to the right engine compartment. The heat built up there, causing the hydraulic lines to fail.<ref name=Crickmore_p23>Crickmore 2003, p.&nbsp;23.</ref> The debris from both aircraft was secretly buried somewhere within the [[Nellis Air Force Base Complex]].<ref name=J&L_p233/> Despite the crashes, ''Have Blue'' was considered a success.<ref>Donald 2003, p.&nbsp;72.</ref>