Five separate recognized class records for altitude with payload in piston-engine aircraft are set by five different AAF crews flying Boeing B-29A Superfortresses at Harmon Field, Guam. Col. J.B. Warren also sets a separate record for greatest load carried to 2,000 meters.
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.