Government plea for plane that doesn't land
If you can imagine a plane that can stay in flight for years at a time and refuel itself autonomously, then you're thinking like a government agent (or at least a science fiction writer).
Last week, the Defense Advanced Research Projects Agency (DARPA), the research and development arm of the U.S. Department of Defense, began soliciting bids from the private sector to design a plane that can remain aloft for five years with a 99 percent probability.
Called the Vulture Air Vehicle Program, possibly after the vulture's ability to sail on thermal streams, the project "will … Read more