The A. Hamilton Rice Expedition, the first group of explorers to use an airplane, returns to the US. The expedition, which used a Curtiss Seagull floatplane, discovered the headwaters of the Amazon River.
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.