In 1955, the Yakolev OKB flew the prototype of a light tactical bomber, the Yak-26, which, evolved from the Yak-25, embodied aerodynamic refinement and was powered by two Tumansky RD-9AK turbojets each rated at 3250kg with afterburning. During test, the Yak-26 achieved 1235km/h at 3000m, or Mach = 1.05, but suffered from serious instability at high attack angles, development consequently being discontinued in favour of a tandem two-seat all-weather fighter, the Yak-27
Engines: two Tumansky RD-9AK turbojets, 3250kg with afterburning
All Aero 