Military Trends, Technology, and International Developments > Stealth

Retitled: Sukhoi SU-57 (T-50 /Sukhoi PAK-FA stealth fighter)

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Ayoshi:
India Could Have Doubts About Russian Fifth-gen Fighter Buy | ainonline - November 8, 2017

--- Quote ---India could be about to re-examine its decision to acquire fifth-generation fighters from Russia, after the Indian Air Force (IAF) produced a report questioning the reasoning behind the program.

A number of Russian media reports in late October stated that India will decide not to press forward with participation in the Fifth-Generation Fighter Aircraft (FGFA) program. The aircraft proposed by the Russian United Aircraft-Building Corporation (OAK) is a variant of the Sukhoi Su-57/PAK-FA incorporating a long list of design changes specified by the IAF to comply with its requirements.

Both Russian print and online media and Echo Moskvy radio reported that the official IAF report has criticized the concept of continuing with the program. Among other findings, it states that the Su-57 design is compromised by being based on obsolescent technology. There are also questions about the overall cost of the program, since India would be required to commit some $6.7 billion to proceed to the next phase.

The overall assessment of the IAF report is that the FGFA would never be an aircraft in the class of the U.S. Lockheed Martin F-35 and that the maintenance costs would be prohibitively high. One of the chief concerns with regard to maintenance is that the engine currently flown in the Su-57 is the Saturn 117S/AL-41F1 design. The Indian report criticizes the engine for being too expensive to operate as it is not a “modular design.”
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Ayoshi:
Russia' Su-57 fighter jet makes maiden flight with new engine | Air Recognition - 07 December 2017

--- Quote ---Russia’s fifth-generation Su-57/T-50 PAK FA (Prospective Airborne Complex of Frontline Aviation) fighter jet has performed its first flight with a second-phase engine at the Gromov Flight Research Institute in the Moscow Region, the press office of Russia’s United Aircraft Corporation (UAC) said.

< snipped >

The 17-minute flight was performed by Sergei Bogdan who is a chief test pilot of the Sukhoi Company that is a UAC subsidiary. The flight was smooth and was carried out in accordance with the flight task.

The first ground start of the second-phase demonstrator engine was carried out at the Machine-Building Plant in Lytkarino in the Moscow Region in November 2016. The engine is being developed by the Lyulka Design Bureau under the supervision of General Designer and Director Yevgeny Marchukov.

According to CEO of Russia’s United Engine-Manufacturing Corporation (UEC) Alexander Artyukhov, new design solutions that have no equal in Russia’s engine-manufacturing industry were used during the production of the demonstrator engine.
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The RuSAF Su-57 flying with second stage engine (Credit: UAC)

Ayoshi:
Two Su-57 fighter jets reportedly deployed to Syria for operational testing | Air Recognition - 22 February 2018

--- Quote ---Two Su-57 prototype fifth-generation fighter jets have been dispatched to the Humaymim airbase in Syria for operational evaluation and tests (OE&T), according to Russian and foreign media outlets including the Lenta.Ru network broadcaster, the blog of the Center for Analysis of Strategies and Technologies (CAST) and the Vostok-Media news agency.

The footage published by Wael al-Hussaini, a Syrian Internet user, shows landing of two T-50 fighters at the Humaymim airbase. The aircraft were being escorted by a Su-30SM multirole fighter jet. According to the blog of CAST, four Su-35S multirole fighter jets and an A-50U airborne early warning and control (AEW&C) aircraft were also deployed at the airbase. These aircraft are believed to have been dispatched to Syria during a rotation cycle.

< snipped >

There are no additional details on the deployment of the prototype T-50 fighter jets deployed at the Humaymim airbase. Russia`s Ministry of Defense (MoD) or other sources have yet to confirm the abovementioned information.
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Two Su-57s reportedly landed at the Humaymim airbase (Credit: twitter.com/WaelAlHussaini)

Ayoshi:
T-50 fighter jet successfully tested in Syria says Shoigu | Air Recognition - 02 March 2018

--- Quote ---"Indeed, they were there for a while, for two days. During the time they completed a program of trials, including combat ones," Shoigu said. "I can say that the trials were successful and the aircraft returned home a week ago."

"There were two aircraft escorted by flying laboratories and test beds monitoring the parameters of operations," he added.
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Ayoshi:
Su-57 pilots to get new G-suit in 2019 | Air Recognition - 30 March 2018

--- Quote ---The new G-suit sustains the overload longer due to higher compensation of the blood deflux from the head. In contrast to the predecessors, it has additional arm squeezing. A G-suit impedes blood deflux from the brain to the belly and legs during maneuvering.
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A RusAF Su-57 fighter jet (Credit: Russian Ministry of Defense)

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