During the Vietnam War, the U.S. military sought a revolutionary aircraft that could fly like a jet but land like a ...

The Bell Boeing V-22 Osprey is a remarkable tiltrotor aircraft that can function as both a helicopter and turboprop plane. But can it fly with just one engine?

Editor's note: This page reflects news of the plane crash near DC on Thursday ... including the right engine and tail rotor. Officials said the wreckage is expected to be offloaded from a barge ...