Retired Lt. Col. Robert L. Riedenauer, who flew development aircraft such as the SR-71 and U-2 while in the Air Force and later, as a Lockheed Martin test pilot, the F-117 stealth fighter, died at age 70 on April 23 at his home in Palmdale, Calif. The Associated Press reports he had fought a long battle with cancer. The City of Lancaster, Calif., inducted Riedenauer into its Aerospace Walk of Fame in 2002.
The rate of building B-21 bombers would speed up if the fiscal 2026 defense budget passes. But it remains unclear how much capacity would be added, and whether the Air Force would simply build the bombers faster, or buy more.