AL-31F (42 series) M1


BY-PASSED TURBOJET ENGINE WITH AFTERBURNER

The enterprises design bureau has developed modification of AL-31F engine with increased life time and thrust. In 2007 after successful state test this modification was approved as arsenal of Russia Air Force. Engine type by-passed, two-shaft engine with flow mixture of internal and external ducts behind the turbine, with afterburner common for two ducts and adjustable supersonic fully variable jet nozzle. The engine is intended to power SU-27 aircraft and its modification (SU-27SM, SU-33, SU-34 and others). The engine is fully interchangeable with serial AL-31F engine.

Design modular
Maximum thrust, kgf 13500
Minimum specific fuel consumption, kg/kgf*h 0.685
Air consumption, kg/s 118
Inlet diameter, m 0.924
Maximum dimension, mm 1140
Maximum length, m 4.945
Dry weight, kg 1520

DESIGN DISTINCTION FROM SERIAL AL-31F ENGINE:
  • Modernized LPC with increased air consumption;
  • New materials of rotor parts;
  • Digital full-authority engine regulator instead of analog one;
  • Turbine starter with increased power and higher-altitude startup capability (option);
  • All-round deflection jet nozzle with thrust vector control (option).

    Su-33 Fighter

    Su-27SM Fighter
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