The MiG-19 is a Soviet transonic jet fighter. Although many versions of this fighter exist, the MiG-19P is the most widely recognised with improved firepower and the addition of an RP-1 Izumrud radar. The MiG-19's double Tumansky RD-9 engines allow it to reach 1,452 km/h or Mach 1.34 in level flight. Additionally, unlike earlier MiGs, the MiG-19P's armament consists solely of three 30mm Nudelman-Rikhter NR-30 autocannons, all of the same calibre. These machines have proven themselves in aerial combat over the skies of Vietnam, facing off against western aircraft involved in the Vietnam War.