The surviving North American XB-70 Valkyrie high-speed research aircraft is retired to the Air Force Museum at Wright-Patterson AFB, Ohio. The two XB-70s (one was destroyed after a midair collision) were flown 129 times for 252 hours and 28 minutes by seven contractor, Air Force, and NASA pilots. The two aircraft were flown at twice the speed of sound or better for nearly 52 hours.
In a nighttime ceremony contrived to continue concealment of many of its features, the new B-21 bomber rolled out of Northrop Grumman's Palmdale, Calif. plant Dec. 2. Defense Secretary Lloyd Austin said the aircraft's advanced technology represents "deterrence, the American way."