The history of the MiG-15 began after the Soviet trade representatives in 1946, Britain was able to purchase from the company a Rolls-Royce turbojet engine the most advanced of its time Derwent 5 with a thrust of 1,590 kg, Nene I with a thrust of 2040 kg and Nene II with traction 2270 kg. In the USSR, these engines received the designation RD-500, RD-45 and RD-45F, respectively. After that, it became possible to create a fighter with a flight speed of about 1000 km/h and a ceiling in excess of 13 000 m.
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