Bell wants to soup up tilt-rotor aircraft by adding jet engines

The latest concepts from aircraft-maker Bell, released on Monday, are hybrid flying machines that promise to take off and land like helicopters and then zoom around at high speeds like jets. The three new designs include a small, autonomous fighter-jet-like airplane that could land like a helicopter, pick someone up, and then whisk them away.
These are just concepts, so there’s no promise they’ll see the light of day. Still, the ideas are worth exploring for what they telegraph about the future of military aviation, perhaps in the 2030s.