MiG bureau began the design of a swept-wing fighter to meet an
urgent Soviet requirement for a high-performance turbojet
fighter. Problems with a suitable powerplant were solved when
the British government allowed Rolls-Royce to export a batch of Nene
turbojets. The Klimov bureau quickly copied and improved the
Nene engine allowing the first prototype to fly in 1947.
The combat debut of the MiG-15 was in Korea in
1950 shocking western air forces. The only allied fighter in
the same class was the North American F-86 Sabre.
The MiG-15 was given the NATO codename "Fagot".
Production probably totaled several thousand with Czechoslovakia
and Poland building the type under license.