The aircraft maintainers at Luke AFB, Ariz., undoubtedly have done a magnificent job keeping F-16D No. 83-178 flying over the past 24 years, since it has accumulated some 7,238 flight hours—the average life expectancy is now 6,000+ hours. Now, the Luke folks have turned the Viper with USAF’s “highest flying time” over to the Air National Guard, which will fly it some more. The Arizona ANG’s 162nd Fighter Wing at Tucson International Airport gets old #178 to add to its stable of more than 70 Vipers used in training the international cadre of F-16 pilots. (Luke report by Justin Oakes)
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.