The Martin X-24B was a heavily modified lifting-body research aircraft developed from the X-24A to test higher-performance atmospheric flight and precise runway landing. Its powered research flights exceeded 1,000 mph at altitudes around 60,000 to 70,000 feet, and the program demonstrated that a lifting body could glide and land on a runway like an airplane, informing later reusable spaceplane studies.
Alerts for directly linked future launches and major activity.