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 Air Force is spending heavily on F-22 improvements through the end of the decade, suggesting it may not retire the jet in 2030 as it previously planned. New sensors, fuel tanks, communications, and electronic warfare systems are among the upgrades that comprise the package.