Rostec, under the current contract with the Ministry of Defense of the Russian Federation, will supply some Su-57 aircraft with the second-stage engine, also known as "Product 30" — AL-51F1.
The new engine was first presented in July 2023 under the designation AL-51F1 at a scientific and technical conference on the prospects of engine building at the Samara Technical University. In the presentation of "ODK-Kuznetsov", on one of the slides, the second-stage engine for the Su-57 was designated as AL-51-F1.
Accelerates to Over Mach 2 Without Afterburners
According to analysts and experts in the aviation industry, the AL-51F1 engine will be able to develop a nominal thrust of at least 11,000 kgf, and up to 17,000 kgf in afterburner.
The thrust-to-weight ratio of the aircraft will be more than one — 1.15-1.2 with normal take-off weight. Currently, the parameter is 1.09 with normal take-off weight and 0.97 with take-off weight with full load.
Thus, in non-afterburning mode, the AL-51F1 will provide Su-57M fighters with a sharp increase in supersonic cruising speed to 1.9 - 2.1M. Currently, this figure reaches 1.6 - 1.7M. Thanks to the power plant, the Su-57 will become the fastest fighter of its generation.
Not Only Fast, But Also Stealthy
The new engine is also well optimized to ensure stealth; it has converging-diverging nozzles with serrated flaps to reduce radar signature.
According to estimates, the thrust of the AL-51F1 is approximately 8% higher than that of its closest American competitor, the F119 engine installed on the F-22. Although its main advantage will be much less maintenance and the ability to control the thrust vector to improve maneuverability at low speeds.
Read also on the topic:
Corvette «Mercury» launched a «Caliber» missile at a sea target
Now on home
Anatoly Matviychuk: Bombers complement the nuclear triad and operate remotely
The Ministry of Defense was pleased with the work of high-payload UAVs
The Deputy Prime Minister of the Russian Federation emphasized the priority of the turboprop airliner's reliability over delivery times
Combat vehicle shot down 25 drones in a single sortie
Technology has been successfully tested
The project will be implemented at the plant in Nizhny Novgorod, where Skoda and Volkswagen were previously produced
Business Insider: New missiles have turned the aircraft into a dangerous adversary
The crew conducted aerodynamic and air pressure receiver tests at altitude
Starting price of the station at auction is 4 billion rubles
Mass production is scheduled to start this year at the gigafactory in Krasnaya Pakhra
No contractor was found for the development of the project for 2.37 billion rubles