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Sukhoi Su-57


The JSC Sukhoi Company was a major Soviet and is now a Russian aircraft manufacturer, headquartered in Begovoy District, Northern Administrative Okrug, Moscow, that designs both civilian and military aircraft. 

The Sukhoi Su-57 (Russian: Сухой Су-57; NATO reporting name: Felon) is a stealth, single-seat, twin-engine multirole fifth-generation jet fighter being developed since 2002 for air superiority and attack operations. The aircraft is the product of the PAK FA a fifth-generation fighter programme of the Russian Air Force. Sukhoi's internal name for the aircraft is T-50. The Su-57 is planned to be the first aircraft in Russian military service to use stealth technology.

Its maiden flight took place on 29 January 2010 and the first production aircraft was expected to be delivered in 2019 with a second to follow in 2020 but is being delayed due to a crash in late December 2019.

 

SU 57

 

The fighter is designed to have supercruise, supermaneuverability, stealth, and advanced avionics to overcome the prior generation fighter aircraft as well as ground and naval defences. The Su-57 is intended to succeed the MiG-29 and Su-27 in the Russian Air Force and have a service life of up to 35 years.

The Su-57 is a fifth-generation multirole fighter aircraft and the first operational stealth aircraft for the Russian Air Force. The aircraft is stealthy, supermaneuverable has supercruise capability, incorporates substantial amounts of composite materials and possesses advanced avionics such as active phased-array radar and sensor fusion. The aircraft has a blended wing body fuselage and incorporates all-moving horizontal and vertical stabilizers; the vertical stabilizers toe inwards to serve as the aircraft's airbrake. The aircraft incorporates thrust vectoring and has adjustable leading-edge vortex controllers (LEVCONs) designed to control vortices generated by the leading edge root extensions, and can provide trim and improve the high angle of attack behaviour, including a quick stall recovery if the thrust vectoring system fails. The advanced flight control system and thrust vectoring nozzles make the aircraft departure resistant and highly manoeuvrable in both pitch and yaw, enabling the aircraft to perform very high angles of attack manoeuvres such as the Pugachev's Cobra and the bell manoeuvre, along with doing flat rotations with little altitude loss.

 

SU 57

 

Weapons are housed in two tandem main weapons bays between the engine nacelles and smaller bulged, triangular-section bays near the wing root. Internal weapons carriage eliminates drag from external stores and enables higher performance compared to the external carriage, as well as enhancing stealth.

The Su-57 is planned to be the first operational aircraft in the Russian Air Force service to use stealth technology. The Su-57's design emphasizes frontal stealth, with RCS-reducing features most apparent in the forward hemisphere; the shaping of the aft fuselage, the seams between parts, and rivets are much less optimized for radar stealth compared to the F-22. The combined effect of airframe shape and RAM of the production aircraft is estimated to have reduced the aircraft's RCS to a value thirty times smaller than that of the Su-27.

 

Role

Multirole fighter

National origin

Russia

Manufacturer

Komsomolsk-on-Amur Aircraft Plant

Design group

Sukhoi

First flight

29 January 2010; 12 years ago

Introduction

25 December 2020

Status

In service

Primary user

Russian Air Force

Produced

2009–present

Number built

15 (10 test and 5 serials) as of 2022

Variants

Sukhoi/HAL FGFA

 

 

 

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