Mig-15 / SovietMig 15 Soviet airplane model. The Mikoyan Gurevich MiG 15 was originally developed in the Soviet Union as an interceptor. The RD 45 turbojet powered it, which was a copy of the Rolls Royce Nene. Designed to shoot down heavy bombers, it carried one 37mm and two 23mm cannons. German experience in WWII had shown the need for cannons larger than 20 mm to bring down four engine heavy bombers. The prototype MiG 15 first flew in December 1947. It began