Yakovlev Yak-141

The Yakovlev Yak -141 (Russian Яковлев Як -141, NATO reporting name Freestyle ) is a supersonic VTOL -capable fighter aircraft of the Soviet Union.

History

The program was launched in 1975 as the Yak- 41 or Isdelije (product ) 48 as a further development of the Yakovlev Yak -38. The first conventional flight was conducted on 9 March 1987 and the first vertical launch with transition to conventional flight took place on 13 June 1990. During testing twelve world records could be flown. The VTOL capability is achieved through a hub - and Hub-/Schubtriebwerkskonfiguration. Behind the cockpit two lift engines are arranged to be switched off in horizontal flight. The main engine is installed in the rear fuselage area with swiveling nozzle and an afterburner. The hover the exhaust jet is deflected by 90 ° downwards. Approx. In 1991 the aircraft in Yak- 141 has been renamed.

The Yak- 141 is quickly up to Mach 1.7 and to be as agile as the MiG -29. In August 1991, the program was stopped because of the shrinking military budgets of the Soviet Union, too, because in November the same year, one of the two prototypes was destroyed in an accident. An entity known as the Yak- 141M version with stronger engine was as well as its two -seated training version Yak- 141U no longer implemented. Developed for the fully swiveling nozzle technologies were transferred to the U.S. and there used to develop the F135 engine ( engine of the F -35) of Pratt & Whitney.

Specifications

  • Minimum 368 kg / m²
  • Maximum output of 615 kg / m²
  • Internal 4400 kg
  • External 1750 kg
  • Operationally 1400 km ( with max. payload )
  • Transfer of 2100 km
  • A MNPK Kobchenko/Sojus-R-79-300-Turbofan as thruster
  • Two Rybinsk Motors RKBM -RD -41 turbojet lift engines as
  • 152 kN with afterburner
  • Without afterburner 108 kN
  • Maximum of 1.33
  • Minimum 0.94
Mach number Yakovlev AIR-6 Yakovlev Yak-3 Yakovlev Yak-25 (1947) Yakovlev Yak-26 Yakovlev Yak-30 (1948) Yakovlev Yak-32 Yakovlev Yak-50 (1949)
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