Su 57 new engine

The Su-57 is a fifth-generation stealth multirole fighter aircraft developed by Russia's Sukhoi Aviation Corporation. The aircraft is powered by two AL-41F-1S engines, which are a significant improvement over the previous AL-31F engines used in the Su-30 and Su-35.

Here are some key features of the AL-41F-1S engine:

  1. Thrust-to-weight ratio: The AL-41F-1S engine has a thrust-to-weight ratio of 10.1, which is higher than the AL-31F engine's ratio of 8.5. This means the new engine produces more power relative to its weight.
  2. Power output: The AL-41F-1S engine produces 14,500 kgf (32,500 lbf) of thrust, which is a significant increase over the AL-31F engine's 12,500 kgf (27,800 lbf) of thrust.
  3. Fuel efficiency: The AL-41F-1S engine is designed to be more fuel-efficient than the AL-31F engine, with a specific fuel consumption of 0.85 kg/kgf/h (1.9 lb/lbf/h) compared to the AL-31F's 1.1 kg/kgf/h (2.4 lb/lbf/h).
  4. Afterburner: The AL-41F-1S engine has a more advanced afterburner system than the AL-31F engine, which allows it to produce a higher thrust-to-weight ratio and improved acceleration.
  5. Digital engine control: The AL-41F-1S engine features a digital engine control system, which provides more precise control over engine performance and reduces the risk of engine failure.
  6. Advanced materials: The AL-41F-1S engine uses advanced materials, such as titanium and ceramic matrix composites, to reduce its weight and improve its durability.
  7. Supersonic cruise: The AL-41F-1S engine is designed to allow the Su-57 to cruise at supersonic speeds (Mach 1.8) without the need for afterburner, which reduces fuel consumption and noise.

Overall, the AL-41F-1S engine is a significant improvement over the AL-31F engine and provides the Su-57 with improved performance, fuel efficiency, and reliability.