Found and Explained Official on MSN

The jet fighter the US cancelled for being too futuristic

Lockheed’s L-133 was an early American jet fighter concept developed around a highly advanced axial-flow engine years ahead of practical production capability. The airframe used radical shaping, ...
In the early 1940s, Lockheed engineers designed what could have been the world’s first operational jet fighter—the L-133 Starjet. With an advanced axial-flow jet engine, swept-wing design, and a speed ...