The Soviet MiG-17 fighter had been certainly truly intended to become more stable than its predecessor, The MiG-15 finished up being unstable at higher-level and too tight a noticable difference could trigger an uncontrolled snap roll and spin. To conquer this matter, the fuselage finished up being lengthened, tiny 'fences' ended up being arranged regarding top areas of this wing to control airflow, plus the wings swept back 45 levels. The surplus area towards the fuselage enabled the inner design and systems become revised, and a far more angular end had been added. These adjustments offered the aircraft great protection, necessary for a successful tools platform. The MiG-17 joined up with frontline solution in February, 1953. The Fresco-A maintained 1st VK-1 turbojet the MiG-15. A VK -1F engine with afterburner was at truth then worth the most recent Fresco-C, or MiG -17F . A fixed-scan radar had been put into the MiG-17PF, or Fresco-D. The MiG-17PFU, Fresco-E, became the Soviet Union's initial interceptor having its cannon deleted and four air-to-air missiles included.