In his 30-odd years designing aircraft, Rick Foch has, believe it or not, seen trickier problems than this one. His shop at the U.S. Naval Research Laboratory in Washington, D.C., has invented dozens of unmanned aerial vehicles of all shapes and dimensions, from a UAV that folds up in a Marine's backpack (Dragon Eye, 2000) to a small drone launched from a Predator (Finder, 2000) to a winged radar target that can withstand 10,000 Gs while being shot from a ship's gun (FLYRT, 1991).
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