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Sukhoi Su-57 (Felon)

5th Generation Multi-Role Stealth Aircraft [ 2019 ]

The Russian Sukhoi Su-57 is a Fifth Generation multi-role aircraft intended to compete directly with the American Lockheed F-22 Raptor.

Authored By: Dan Alex | Last Edited: 06/28/2023 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

The Su-57 (formerly "PAK FA" and "T-50") is currently in development with the storied Sukhoi OKB, a Russian aircraft firm granted origins in the dark days of World War 2 (1939-1945) and having since contributed many designs to the Soviet Air Force and Army in the Cold War years following. The Su-57 is categorized as a "Fifth Generation Fighter" recognizing that it will make use of the latest aviation technology, radar-absorbing materials and weaponry to provide for excellent performance, agility and response for the unseen conflicts ahead. As a Fifth Generation fighter, the Su-57 is challenging the realm currently dominated by the American Lockheed F-22 "Raptor" air superiority fighter - the world's first 5th gen fighter aircraft. The arrival of the T-50 introduces a second player to the once exclusive "Fifth Generation Club", owned wholly by the United States, while China continues development of their own indigenous 5th gen fighter across the Pacific.

In the Russian, "PAK FA" translates to "Future Air Complex - Tactical Air Forces". The Su-57 has been developed somewhat jointly through a partnership between Russia and India to which India has contributed as much as 35% to date. The Indian intent is to benefit from the program by procuring their own PAK FA-based 5th gen fighter in the coming decade. Serial production for the T-50 is slated for 2015 and the first public unveiling of the prototype was shown during the MAKS 2011 Air Show just outside of Moscow in August of 2011. Four prototypes has been completed to date (2013) with a fifth under construction. State trials are expected for 2014.

The Near Future

In the Russian inventory, the Su-57 will move in to take over the roles held by the large Sukhoi Su-27/Su-37 "Flanker" family as well as the lightweight Mikoyan MiG-29 "Fulcrum" (all 4th Generation Fighters). Both of these lines have gone on to see much use in the global market resulting in a myriad of variants and configurations. The Su-57 will also move along the joint Russian-Indian FGFA (Fifth Generation Fighter Aircraft) program for the near future - an agreement reached between the two nations in 2001 - with results expected to be introduced sometime in 2015. This aircraft and will be based highly on the developmental findings of the Russian PAK FA/T-50/Su-57 program with India intending to purchasing some 250 FGFA fighters at project's end.

The T-50 Prototype

The PAK FA prototypes are designated as "T-50". As a multi-role aircraft, the Su-57 will be charged with both air superiority and ground attack roles as well as aerial reconnaissance by way of specialized onboard equipment. Her design will provide excellent performance within her altitude limitations and make possible operations in both day/night as well as adverse weather conditions. Sukhoi intends on making her an equally-lethal performer in all of her defined roles. Dimensionally, the Su-57 will reflect the size of the other proven Sukhoi flagship product, the Su-27 Flanker.

Project Background

By the end of the Cold War, the need to replace Russia's high-performance "do-everything" fighters became more apparent to authorities. Several projects were enacted to find solutions for a next generation craft and two such programs produced the Mikoyan MiG "1.44" and the Sukhoi Su-47 "Berkut" (the latter formerly known as the S-32 as well as S-37). The MiG 1.44 became a highly-secretive technology demonstrator and achieved first flight on February 29th, 2000. She was intended to compete directly with the American Lockheed F-22 Raptor in the air superiority role. The MiG 1.44 sported forward canards with an underfuselage split air intake similar to the Eurofighter 2000. The Sukhoi Su-47 Berkut was the other technology demonstrator though it had the greater possibility of seeing full-scale production. Most notable of the type was its forward-swept wing arrangement (ala the Grumman X-29 concept) and decidedly large Sukhoi-brand dimensions. The Su-47 achieved first flight on September 25th, 1997 and was formally unveiled in January of 2000. Only a single known example of the Su-47 was ever built while two examples of the MiG 1.44 (the other being the similar MiG 1.42/42) was known to exist. Both were powered by a dual engine layout and much information garnered from the proceeding in-flight tests have played a role in the development of the Su-57.

In the early part of 2002, Sukhoi was selected to head up the design of Russia's new Fifth Generation Fighter. By the start of 2003, other minority contract winners were announced to design, develop and construct applicable components such as the avionics suite and engine powerplants as well as the understructure and final assembly systems. Production of the very first aircraft was started by August 2007 with the goal of having three such flyable systems on hand by the beginning of 2009. Some inevitable delays followed throughout 2009, resulting in a first flight date achieved on January 29th, 2010 - this lasting some forty-seven minutes and achieving all required goals. The first flight itself was delayed from January 28th due to bad weather in the region. A second flight followed soon afterwards, on February 6th, and a third flight was recorded on February 12th. These serve to indicate the relative readiness of the PAK FA project up to this point.©MilitaryFactory.com
PAK FA Walk-Around

Though a wholly internal Russian design at its core, Western observers are quick to note the Su-57s resemblance to the existing Lockheed product sporting long lines, sharp angles and broad shapes to suspect the Russians were keenly observing American developments throughout the 1990s quite closely. When viewed from the front profile, the Su-57 shows off its F-22-like faceted fuselage design with a high-mounted, high vision single-seat cockpit. The cockpit is set a distance aft of the nose cone assembly which houses the radar facility. The Su-57 and beneath each side of fuselage centerline are the two rectangular intakes aspirating the twin engine configuration. The intakes are noticeably angled inwards. The main wings are set a ways aft from the design's centerpoint and features clipped wingtips while each assembly showcases swept leading and trailing edges. The main wings are complimented by a smaller set of all-moving horizontal planes immediately aft. The vertical tail fins are well-spaced apart and cranked outwards from centerline, each unit being all-moving surfaces with clipped tips and of a rather small surface area. Each engine exhausts at the rear within the vertical tail area and a stinger type assembly protrudes between the powerplants ala the Su-27/Su-35. The engines are purposefully spaced well apart to allow for a large internal weapons bay and provide thrust vectoring for maximum agility. This is aided by the small, all-moving tailplanes - an advantage not seen in the American F-22. The undercarriage is of a conventional tricycle layout with two main single-wheeled landing gear legs and a double-wheeled nose landing gear leg. The main legs retract into the intake sides whilst the nose leg retracts behind and beneath the cockpit floor.

Core Components

The Su-57 makes use of radar-absorbing materials to achieve its stealth as well as onboard counter systems and structural design. The engines allow for supercruise travel, achieving supersonic flight without the need for thirsty, radar/missile-attracting afterburner (also known as "reheat"). The advanced Active Phased Radar Array (APRA) system is being developed by the Fazatron-NIIR Corporation and will offer both forward-looking and side-scanning capabilities - similar in scope to the Irbis radar found on the Sukhoi Su-35BM Flanker. The complete system (involving multiple linked radar systems) is being tested on an existing aircraft (though not a T-50 prototype). Capabilities will allow for the tracking and engagement of multiple targets simultaneously, be they ground- or air-based. The cockpit will be "all-glass" in nature and digitally-minded compared to any previous Russian offering. The onboard computer network will actively work to correct in-flight stability issues and help the pilot by reducing workloads. The wings have been given leading-edge flaps which handle lift at higher angles of attack while being completely adjustable as the aircraft's speed dictates. Ailerons will support low speed flight and handling while flaperons will assist in low-speed lift on approaches or take-off.

Powerplant and Performance

Power for the T-50 is being supplied by 2 x NPO Saturn AL-41F (Type 117) turbofan engines offering 33,050lb of thrust each. Finalized production versions will be given a 40,000lb thrust version (Type 30) that is slated to appear in 2020. Thrust-vectoring will be standard and allow for the required agility. Authorities cite a maximum speed of approximately Mach 2 (1,330mph) while cruising will be at 1,120mph. Listed ferry range is 3,400 miles with an operational service ceiling of 65,000 feet. The airframe will support forces of up to 9g. The PAK FAs original listed speed was Mach 2.35 which was then reduced to Mach 2.1 and, ultimately, Mach 2.


Largely under wraps as of 2013, the Su-57 is presumed to support existing and in-development air-to-air and air-to-surface ordnance (the T-50 prototype is not outfitted with weapons as this point). Standard armament will be one or two 30mm GSh-301 series cannons. Six internal hardpoints will be available as well as up to six external hardpoints. The internal hardpoints will be set across the two (perhaps four in finalized production forms) internal weapons bays found under the fuselage. There has been confirmed support for the Kh-35E (AS-20 "Kayak") anti-ship missile, the R-77 RVV-MD (AA-12 "Adder") air-to-surface missile, the Kh-58UShKE (AS-11 "Kilter") anti-radiation missile and the Kh-38ME air-to-surface missile. Of course these are in-service missiles that will greet the Su-57 during its early operational years. It is expected that specially-developed munitions will come online into the next decade exclusively for use in the Su-57 family.©MilitaryFactory.com
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In August of 2012, the T-50 prototype began flight testing its Active, Electronically-Scanned Array (AESA) radar suite.

August 2012 - The Russian and Indian governments are scheduled to sign an $11 billion dollar contract for India to receive its share of the Su-57 program, this in the form of a prototype example expected to be delivered sometime before 2014. This Su-57 derivative will include development by Hindustan Aeronautics Ltd (HAL) and is known under the project title of "Perspective Multi-Role Fighter".

January 2014 - The Russian Air Force expects to purchase some 74 fighters (including the required prototypes for testing/evaluation) into 2020. A production facility is expected to be erected at Komsomolsk-on-Amur.

April 2014 - A sixth trial T-50 prototype aircraft will be delivered to the Russian Air Force in 2014 with two more expected during 2015.

June 2014 - A fire was reported on the fifth PAK-FA/T-50 prototype, resulting in considerable damage around the center mass of the airframe. It is believed to have been started in the right engine.

July 2016: It was announced that the T-50 prototypes had completed their initial flight tests by Sukhoi covering some 700 total flights. These examples will now move into state testing.

January 2017 - Five T-50 aircraft will be passed on to Russian forces for state testing. This is the final step before serial production is ordered.

March 2017 - Reports indicate that the T-50 may enter service later than the expected 2018 date. This will force the Russian Air Force to proceed with plans to purchase the more modern, advanced version of the Flanker.

July 2017 - A new Russian rearmament plan is set to focus on procurement of the first T-50 fighter lot for the Russian Air Force with deliveries set to begin in 2018. State testing is ongoing and another pair of prototypes are set for completion before the end of 2017.

August 2017 - Sukhoi revealed the official product designation for its T-50 advanced 5th Generation Fighter to be "Su-57".

December 2017 - It was announced that a T-50-2 prototype went airborne with new engines known generically as the "Izdelie 30".

March 2018 - Several Su-57 examples have been identified in Syria as part of the Russian commitment there. The aircraft were photographed by Israeli imaging satellites. It is believed that the Su-57, at least two examples, are in the warzone to undergo active testing under combat conditions.

September 2018 - The Russian Air Force has placed an order for two Su-57 fighters in late-August. An additional thirteen are set to follow in the short-term with as many as sixty ordered before the end of 2020. Due to extensive design changes and challenges the program has been reportedly slowed some. The Izdeliye 30 series engine, promising more thrust output while being lighter, is part of the planned changes for the series - which recorded its first-flight eight years ago.

January 2019 - Images emerged of an Su-57 (T-50-3) with a special tail flashing showcasing the silhouette of the Su-57 aircraft alongside a stealthy drone indicating one version of the Su-57 will be used in active testing of the Su-70 "Okhotnik-B" UCAV (detailed elsewhere on this site) by way of datalink.

May 2019 - Russian authorities reaffirmed their commitment to the Su-57 program, requiring three full regiments of the advanced fighter to be in operational service by 2028.

August 2019 - Russian state news has reported that serial production of the Su-57 has begun. Russia has committed to an initial batch of 76 fighters. Initial deliveries are expected in late-2019 or 2020.

December 2019 - An Su-57 was lost in a crash on December 24th, 2019 in the Southeastern region of Russia (the pilot ejecting). This marks the first loss of an Su-57 and may effect deliveries of serial models for the near-future as an investigation is underway.

August 2020 - COVID and other issues have delayed official large-scale Su-57 serial production.

January 2022 - It has been revealed that the Su-57 has been conducting operational sorties in the Russo-Ukrainian War - though at range rather than risk the expensive machines to Ukrainian air defense and CAP.


Sukhoi OKB / United Aircraft Corporation - Russia
Operators National flag of Russia
Service Year
National Origin
Active, Limited
Project Status

General ability to actively engage other aircraft of similar form and function, typically through guns, missiles, and/or aerial rockets.
Ability to intercept inbound aerial threats by way of high-performance, typically speed and rate-of-climb.
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.

Houses, or can house (through specialized variants), radar equipment for searching, tracking, and engagement of enemy elements.
Survivability enhanced by way of onboard electronic or physical countermeasures enacted by the aircraft or pilot/crew.
Incorporates two or more engines, enhancing survivability and / or performance.
Capable of sustained supersonic flight without the need for engine afterburner/reheat enabled.
Mainplanes, or leading edges, features swept-back lines for enhanced high-speed performance and handling.
Fuselage volume includes space for internally-held weapons or special-mission equipment.
Can accelerate to higher speeds than average aircraft of its time.
Can reach and operate at higher altitudes than average aircraft of its time.
Assisted process of allowing its pilot and / or crew to eject in the event of an airborne emergency.
Supports pressurization required at higher operating altitudes for crew survival.

72.2 ft
(22.00 meters)
46.6 ft
(14.20 meters)
19.8 ft
(6.05 meters)
40,786 lb
(18,500 kilograms)
Empty Weight
81,571 lb
(37,000 kilograms)
Maximum Take-Off Weight
+40,786 lb
(+18,500 kg)
Weight Difference
monoplane / mid-mounted / swept-back
Mainplane Arrangement
Design utilizes a single primary wing mainplane; this represents the most popular modern mainplane arrangement.
Mainplanes are mounted along the midway point of the sides of the fuselage.
The planform features wing sweep back along the leading edges of the mainplane, promoting higher operating speeds.

2 x NPO Saturn / FNPTS MMPP Salyut AL-41F1 turbofan engines developing 35,000 lb of thrust each (T-50 prototype).
1,616 mph
(2,600 kph | 1,404 knots)
Max Speed
65,617 ft
(20,000 m | 12 miles)
3,107 miles
(5,000 km | 2,700 nm)
64,000 ft/min
(19,507 m/min)

MACH Regime (Sonic)
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030

1 OR 2 x 30mm GSh-30-1 internal cannon(s).

Air-to-air and air-to-surface missiles; guided bombs across internal (two or four internal bays) and up to six external hardpoints.

14 (8 internal)

Hardpoints Key:

Not Used

Su-57 ("Felon") - Official Base Series Designation.
PAK FA - Original Program Designation.
T-50 - Prototype Designation.
Su-57E - Proposed, downgraded export model.

General Assessment
Values are derrived from a variety of categories related to the design, overall function, and historical influence of this aircraft in aviation history.
Overall Rating
The overall rating takes into account over 60 individual factors related to this aircraft entry.
Rating is out of a possible 100 points.
Relative Maximum Speed
Hi: 1700mph
Lo: 850mph
This entry's maximum listed speed (1,616mph).

Graph average of 1,275 miles-per-hour.
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
Max Altitude Visualization
Small airplane graphic
Design Balance
The three qualities reflected above are altitude, speed, and range.
Aviation Era Span
Pie graph section
Showcasing era cross-over of this aircraft design.
Unit Production (25)
Compared against Ilyushin IL-2 (military) and Cessna 172 (civilian).

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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from the Russian Ministry of Defense.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image from Sukhoi marketing material.
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Image of the Sukhoi Su-57 (Felon)
Image copyright www.MilitaryFactory.com; No Reproduction Permitted.
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Image of the Sukhoi Su-57 (Felon)
Image copyright www.MilitaryFactory.com; No Reproduction Permitted.


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