This Web site introduces the X-Hawk, "a vehicle that has the [vertical takeoff and landing] capability of a helicopter, but without the exposed rotors that make it dangerous or impossible for helicopters to maneuver in complex urban and natural environments." It has received considerable attention from the media, as is apparent from the press clippings provided online. The Film and Downloads...

A Washington Post article from September 1, 2003 looks back at a significant moment in aviation when, in spring 2002, researchers successfully demonstrated an ornithopter capable of hovering. An ornithopter is a kind of aircraft that mimics flying creatures by using flapping wings instead of conventional propulsion systems. Many potential applications exist for future ornithopters, including Mars...