The Soviet MiG-17 fighter had been built to be much more stable than its predecessor, The MiG-15 had been unstable at high rate and too tight a change might lead to an uncontrolled snap roll and spin. To conquer this problem, the fuselage ended up being lengthened, little 'fences' were installed regarding top areas of this wing to regulate airflow, as well as the wings swept straight back 45 degrees. The extra space into the fuselage enabled the internal design and systems become revised, and an even more angular end had been added. These modifications gave the aircraft great stability, needed for a successful tools platform. The MiG-17 entered frontline solution in February, 1953. The Fresco-A maintained the initial VK-1 turbojet of the MiG-15. A VK -1F engine with afterburner had been then fitted to the newest Fresco-C, or MiG -17F . A fixed-scan radar was put into the MiG-17PF, or Fresco-D. The MiG-17PFU, Fresco-E, became the Soviet Union's very first interceptor using its cannon deleted and four air-to-air missiles included.
