The Army Air Service takes on a new mission: aerial icebreaking. Two Martin bombers and two DH-4s bomb the frozen Platte River at North Bend, Neb., for six hours before the ice clears.
Northrop Grumman recently delivered the first production-version of a new upgraded, jam-resistant airborne navigation system for the Air Force's F-22 Raptor and Navy’s E-2D Advanced Hawkeye aircraft.