Nicknamed Schwalbe (Swallow), the Messerschmitt Me 262 surpassed the performance of every other World War II fighter. Faster than the North American P-51 Mustang by 190 kilometers (120 miles) per hour ...

The Jumo 004 B4 Turbojet Engine was the world’s first mass-produced, operational turbojet engine. The Whittle W1X Engine was the first British turbojet to be airborne.

There is likely no chance of the U.S. military developing a twin-engine F-35 because that would require a complete and costly overhaul to its airframe.