"Exploring the Bizarre World of X-Plane Designs"

This article highlights 12 of the weirdest X-plane designs, showcasing the innovative and unconventional aircraft developed by NASA and other organizations. From the Stiletto, a supersonic aircraft resembling a plague doctor's mask, to the X-57 Maxwell, NASA's first all-electric plane, these X-planes push the boundaries of flight. Other notable designs include the Bell X-5 with variable wing sweep, the Grumman X-29 with forward-swept wings, and the X-15, a rocket-powered plane that set records for speed and altitude. The article also mentions ongoing projects like the X-59 QueSST, a supersonic plane designed to fly without a sonic boom.