The Cold War Jet That Proved Vertical Takeoff Works Then Got Canceled Anyway

The Ryan X-13 was a Cold War experiment that proved jet-powered vertical takeoff and landing (VTOL) was feasible, even though the aircraft never entered operational service. Built around a distinctive cable landing approach, the program accumulated a “remarkably successful” test-flight record, but the landing technique ultimately led to the project’s cancellation. The article frames VTOL’s appeal for militaries as the ability to reduce dependence on long, secure runways and established airbases—VTOL platforms can use fields, roads, or the deck of an amphibious assault ship. It points to the U.S. Marine Corps as a key VTOL operator, moving from the AV-8A Harrier to the Lockheed Martin F-35B.