Bell is allowed to develop a demonstrator for a fast tiltrotor aircraft as part of the Pentagon's SPRINT-X-Planes program.

Supersonic tunnel trials suggest the X-59’s shape can scatter shock waves, paving the way for hush-hush high-speed flight.

It doesn’t occur daily that a $1 billion line item in a defense bill shakes the aerospace community, but the President Trump-sponsored funding of the U.S. Space Force’s X-37B spaceplane did exactly ...