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the Russian fifth generation fighter Sue
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57 is often criticized for its fourth
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engine now it is all about to change a
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trailer for the film masters of the sky
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which is dedicated to the 85th
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Anniversary of the suco design Bureau
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has been released by Channel 1 in Russia
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the fifth generation Sue 57 Fighter
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which is equipped with the second stage
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engine known as product 30 or al51 F1
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will be featured in the film which is
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scheduled to air on December 15th this
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engine is equipped with a flat nozzle
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that is capable of thrust vectoring the
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trailer includes footage of the
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experimental t52 aircraft with the much
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anticipated power plant and the Su 57m
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fitted with two al-51 F1 engines this
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power plant is the final component that
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ensures the Su 57 is entirely compliant
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with the standards of Russia's fifth
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generation fighter aircraft these
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standards include multi-functionality
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stealth super maneuverability advanced
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intelligence all aspect situational
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awareness for the pilot a high combat
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payload with long range Precision
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missiles and supersonic cruising in
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non-af burner mode the Public
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Presentation of the Su 57 with al-51 F1
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engines on Channel 1 is a significant
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Milestone as it signals the engine's
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Readiness for production and deployment
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as the second stage engine satisfies the
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final Criterion this power plant is
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equipped with a Thrust vector control
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system and a flat nozzle that is
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oriented at an angle of approximately
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45° it improves the aircraft's flight
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performance by increasing the After
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Burner thrust to 18,000 kg force and the
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thrust in emergency mode to 19 to 19.5
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tons in afterburner mode this engine
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achieves an extraordinary thrust to dry
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078 this nozzle configuration not only
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substantially reduces the aircraft's
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radar cross-section but also reduces the
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Fighter's infrared signature in the rear
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hemisphere the al51 F1 engines of the Su
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57m are capable of achieving a
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supersonic sustained speed of 1.95 to
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2.1 mock the al-51 F1 is a fifth
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generation turbofan engine with a twin
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shaft design and after burning
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capability as indicated by open sources
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it is equipped with a three-stage fan
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and a five-stage High pressure
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compressor which are powered by a single
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stage low press turbine and a single
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stage high-press turbine the new engine
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improves the fuel efficiency and thrust
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of the aircraft by using an automatic
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control system that calibrates fuel
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delivery in accordance with atmospheric
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pressure altitude and humidity in
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December 2023 high ranking sources close
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to the Russian Aerospace forces told Tas
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about plans to equip all s57 fighters
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produced by the kumal gamur aircraft
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plant starting in 2024 with al51 F1
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engines however the fighters delivered
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to the military in 2023 were equipped
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with the first stage al-41 F1 or product
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117 engines the arip lia design Bureau
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has been executing ongoing development
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of the second stage engine for the Sue
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57 the initial bench test was conducted
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on November 11th 2016 and flight tests
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commenced in December 2017 on an
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experimental t52 aircraft at first the
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engine was equipped with a circular
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nozzle a scientific and Technical
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conference on engine development
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prospects was convened at Samara
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Technical University in July 2023 during
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which the new engine was officially
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designated al51 F1 the al-51 F1 was
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designated as the second stage engine
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for the s57 in a presentation by UE
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ketov the first stage al41 F1 engine has
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a nominal thrust of 8,800 kg Force
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14,500 kg for on afterburner and 15,000
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kg force in emergency mode the al51 F1
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engine is expected to generate a nominal
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thrust of at least 11,000 kg force and
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177,000 kg force with the afterburner
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according to Aviation experts the thrust
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to weight ratio of the Sue 57 will
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exceed 1 with a normal takeoff weight
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ranging from 1.15 to 1.2 compared to the
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current ratio of 1.09 with a normal
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0.97 with a full load due to its takeoff
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weight of over 35 tons a ratio greater
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than one indicates that the aircraft is
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capable of producing more power than its
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own weight which suggests that it has
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exceptional maneuverability and
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performance now do you think the Sue 57
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is a true fifth generation Fighter by
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the Western standards let us know in the
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