On 26 April 1984 Bond, who was about to retire, made a farewell visit to "an Air Force Systems Command unit" believed to have been the
6513th Test Squadron, Red Hats, at
Groom Lake. The Red Hats, like the
4477th Test and Evaluation Squadron Red Eagles based at
Tonopah Test Range, clandestinely operated Soviet aircraft. On a previous visit to Groom, Bond had flown the secret
YF-117A prototype. The
MiG-23 was known as YF-113 in U.S. service and, along with a greater number of
MiG-21s, was part of a collection of Soviet-built aircraft that the 4477th flew. Bond insisted on flying the MiG-23BN fighter-bomber after a cursory briefing over the cockpit rail, even though it was considered a difficult aircraft and pilots usually received several hours of ground instruction before flying it. On his second high-speed flight, he was flying at and over
Mach 2, and had left the
T-38 Talon chase plane that was flying with him far behind, when a hydro-mechanical inhibitor activated, preventing him from disengaging the
afterburner. It was designed to avoid sudden shut-downs at high speed that could damage the
Tumansky R-29 engine, or even cause it to explode and destroy the aircraft. At such speeds, with the
wings fully swept back to 72°, the MiG had very limited
pitch authority and was inclined to yaw and roll. Bond lost control, made a distress call ("I gotta get out of here") and was then killed in the
ejection, when the slipstream broke his neck and shredded the canopy of his parachute. The aircraft crashed in the desert, diving in at a 60° angle and impacting on what is now known as Jackass Flats, part of Area 25 that was still contaminated from
NERVA nuclear rocket testing years before. Bond's body was discovered by a USAF sergeant on his way to work, who removed the rank insignia from Bond's flight suit with a pocket knife before going to get help. ==Aftermath==