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

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2 recent articles to start this thread:

Live fire tests of the Russian T-50 stealth fighter’s 30 mm gun appears online

 The Aviationist

--- Quote ---Based on the data released so far, the gun (that complements a wide array of weapons that the aircraft will be able to carry), 50 kg in weight, can fire at a rate of 1,800 rounds per minute, “the best such performance for this type of weapon around.”

According to the state-run Sputnik news media outlet “another thing that makes the 9-A1-4071K so special is its autonomous water cooling system where the water inside the barrel jacket vaporizes as it heats up during operation. The 9-A1-4071K cannon can fire blast-fragmentation, incendiary and armor-piercing tracer rounds and is effective against even lightly armored ground, sea and aerial targets. The cannon can hit ground targets up to 1,800 meters away and aerial targets at a maximum distance of 1,200 meters. Flight tests of the 9A1-4071K modernized rapid-aircraft cannon were earlier conducted on the Sukhoi SU-27SM multirole jet fighter.”
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YouTube Video: Test of cannon for T-50 PAK FA

Air Recogition

--- Quote ---UAC now gearing up for T-50 PAK FA low-rate initial production batch
The United Aircraft Corporation (UAC) is gearing up for the manufacture of a low-rate initial production (LRIP) batch of T-50 fifth-generation fighters (Russian acronym - PAKFA) for the delivery to the Russian Aerospace Force (RusAF), according to the Izvestia daily.

The eighth flying prototype almost meeting the military’s requirements to the fifth-generation fighter’s characteristics will take to the skies in Komsomolsk-on-Amur on June 20. Unlike the previous prototypes, the eighth one is fully outfitted with the equipment and systems spelt out by the requirements specification for the future fighter. With the advent of the eighth prototype, the configuration of the T-50 as a combat aircraft has been finalized, and the type is ready for the production for the RusAF.

At present, four more T-50s are sitting in the shops of the Komsomolsk-on-Amur Aircraft Plant in various stages of assembly. Aircraft No. 9 will join the trials in September. The 10th and 11th airframes are in their assembly jigs, one with its fuselage mated and the other with its wing center section assembled. Both will have started their flight tests before the end of the year. In the fall, UAC will be prepared for signing a LRIP batch contract with the Defense Ministry.


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Russia's PAKFAs to be transferred to Aerospace Forces later this year | IHS Jane's 360 - 10 January 2017

--- Quote ---In the first stage, the industry pilots that have been flying the T-50 thus far will train a cadre of military pilots on the aircraft, with the second stage of test programme flights being conducted entirely by these VKS pilots.

Current flight testing by Sukhoi of the initial T-50 aircraft has been conducted at the Gromov Flight Research Institute (LII) in Zhukovskiy. According to Russian specialists familiar with the process, these five T-50s will now be transferred to the Chkalov VKS State Flight Test Centre base No. 929 at Akhtubinsk for the joint-state trials programme.
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The Russian Aerospace Forces is expecting to receive five T-50 PAKFAs for its joint-state trials programme later this year. Source: Sukhoi

Sukhoi to produce two more T-50 PAK FA prototypes in 2017 | Air Recognition - 06 June 2017

--- Quote ---Russia’s Sukhoi Company will produce two prototypes of the fifth-generation T-50 PAK FA (Prospective Airborne Complex of Frontline Aviation) fighter jet in 2017, Russian Deputy Defense Minister Yuri Borisov said yesterday to the Russian news agency Tass.

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The T-50 plane with the second-phase engine (Product No. 30) will perform the first flight in 2018. The PAK FA fighter jet has started test flights to look into the tactical use of missiles and is proving the claimed characteristics.
--- End quote ---

Twists & turns: Russian Sukhoi T-50 fighter jets perform amazing stunts at MAKS 2017


Su-57: Russian Air Force chief confirms 5th-gen fighter jet name | RT news - 11 Aug, 2017

--- Quote ---The Russian military will name the country’s first fifth-generation fighter jet ‘Sukhoi Su-57,’ the commander of the Russian Air Force has confirmed. The aircraft was dubbed ‘PAK FA’ and ‘T-50’ during its development.

“The decision has been taken, the plane has been christened. Su-57 is what we are going to call it now,” Gen. Col. Viktor Bondarev told Zvezda, the Russian Defense Ministry’s official TV channel.
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A Russian T-50 multipurpose fighter jet of the fifth generation © Evgeny Biyatov / Sputnik

Why Russia's New Su-57 Stealth Fighter Might Be a Giant Waste of Time

Dave Majumdar
July 31, 2017

Russia’s Sukhoi T-50 PAK-FA fifth-generation stealth fighter has been given the designation Su-57 as it nears production.
Initially, Moscow will only buy 12 Su-57 aircraft, which are expected to be delivered in 2019. Indeed, the Russian air force is not likely to buy more than 60 of the initial version of the Su-57 in total.

“In 2019, we should begin the delivery of a pre-production batch of [T-50] planes,” United Aircraft Corporation (UAC) chief Yuri Slyusar told the TASS news agency.

One of the reasons the Russians are less than enthused at buying the initial version of the Su-57 is because the stealth fighter is currently powered by interim Saturn AL-41F1 afterburning turbofans producing 32,500lbs thrust each. That is the same engine as the existing Su-35S Flanker-E, which uses many of the same systems that the Su-57 will.

Indeed, with exception of stealth, the new Flanker offers much of the same capabilities as the new fifth-generation fighter. Thus, the Russians are unwilling to spend money on a system that offers only a marginal increase in performance in their view.

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