Whether ferreting out insurgents in Afghanistan or monitoring agricultural trends in America, the ability to stay overhead and continue in a mission is of great importance for an aircraft providing aerial intelligence. Our recent stories about 200-foot span, hybrid electric HALE (High Altitude Long Endurance) aircraft being tested at NASA Dryden Test Flight Center at Edwards Air Force Base showed a pair of large aircraft with the ability to stay up for a week, a persistence of overhead vision that is astonishing. Now Boeing has announced a bigger, wildly more persistent vehicle, the SolarEagle, 435 feet in span, capable of floating around at 60,000 feet on solar/electric power for five years. The 6,000 pound airframe can carry a payload of 1,000 pounds, two-and-a-half times that of the Boeing PhantomEye or Aerovironment Global Observer currently being tested. With increasing miniaturization of electronics, such a craft could carry out multiple military and/or civilian missions simultaneously. According to Defense Update, an online resource, …