The 744th and last Boeing B-52 Stratofortress is delivered to Strategic Air Command. The aircraft, an H model (serial # 61-040), is assigned to 4136th Strategic Wing at Minot Air Force Base, N.D. Also on this date, SAC takes delivery of the last three (of 116) Convair B-58 Hustlers. The aircraft are assigned to the 305th Bomb Wing at Bunker Hill Air Force Base, Ind.
Pentagon Cancels $6B GPS Ground System Contract
April 20, 2026
The Pentagon has canceled its contract with RTX to field a ground segment to manage its most capable GPS satellites, a more than 15-year effort beleaguered by software development issues and cost overages.