 On 27 July, Major Adolphus Bledsoe, pilot, and Major John Fuller, RSO, flew the SR-71 over the 1,000-kilometer closed-course at , beating the Soviet MiG-25 "Foxbat's" record of by more than .The next day, Captain Eldon Joersz, with Major George T. Morgan as RSO, broke the YF-12A's record of 2,070 for the 15–25 kilometer straight course by flying .Also, on 28 July, Captain Robert Helt and his RSO, Major Larry Elliot, broke the YF‑12A's altitude record for horizontal flight flying at a sustained altitude of .