Russia unveils 3400-pound fifth-gen aircraft engine, promising supercruise for fighter jets

Russia’s primary engine manufacturer, United Engine Corporation (UEC), part of Rostec, has revealed its new 177S turbofan engine at the Dubai Airshow 2025. The fifth-generation propulsion system for tactical combat aircraft was designed as a direct evolution of the proven AL-31F/FP series currently powering the entire Su-27 family of fighter aircraft.

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