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How Russian PAK FA 5th Gen Fighter Evolved (PHOTO, VIDEO)

© Sputnik / Valeriy MelnikovSukhoi T-50 PAK FA
Sukhoi T-50 PAK FA - Sputnik International
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Russia’s fifth-generation fighter jet, formerly known as the Prospective Airborne Complex of Frontline Aviation (PAK FA), or Sukhoi T-50, has officially been named the Su-57. RIA Novosti contributor Andrei Kots takes a look at the evolution of Russia’s premier fighter jet.

Test flight of T-50, fifth generation fighter aircraft designed by Sukhoi OKB - Sputnik International
Russia's Fifth-Generation PAK FA Fighter Jet Officially Named Su-57
Experts believe that the latest T-50-11 or the earlier T-50-10 variants of the original T-50 will inherit the onboard equipment of the T-50-9, which conducted its maiden flight on April 24, 2017.

The United Aircraft Corporation’s CEO, Yuri Slyusarev, earlier said that the initial batch of 12 such planes will be supplied to the Aerospace Forces in 2019.

Initial Tests

Presented to President Vladimir Putin in 2014, the scaled-down model of the T-50 was a combination of the latest technological know-how for the Sukhoi Su-47 and MiG-1.44 prospective fighter jets, designed back in the Soviet days.

© Sputnik / Alexei Druzhinin / Go to the mediabankPrime Minister Vladimir Putin at the test if a T-50 fifth generation fighter
Prime Minister Vladimir Putin at the test if a T-50 fifth generation fighter - Sputnik International
Prime Minister Vladimir Putin at the test if a T-50 fifth generation fighter

When the production of the F-22 Raptor fifth-generation multirole fighter, which became a legislator of fashion in the field of next generation fighter planes, started in the US in 1997, it became clear that Russia needed to replace the Su-27 with a plane that would be up to par with its Western counterparts.

A T-50 fighter performs demonstration flight during the International Aerospace Salon (MAKS 2015) in Zhukovsky near Moscow - Sputnik International
PAK-FA's New Engines Make It 'Easily the Best 5th Gen Fighter in the World'
Since its first flight in the early 2010s, the T-50 has receiving a vast series of upgrades to its avionics, stealth and armaments, Andrei Kots wrote.

The T-50-1 prototype took to the skies on January 29, 2010, and the T-50-2 followed suit on March 3, 2011. After 40 successful flight tests the

T-50-2 took part in the MAKS 2011 air show. Before taking off, however, one of its engines caught fire forcing the pilot to abort. Engineers fixed the faulty engine and the T-50-2 flight tests resumed.

The T-50-3 flew on July 24, 2012. Unlike its predecessors, the new prototype carried onboard active phased-array radar. In December 2012, the T-50-4 took to the skies with the same radar array on board. Both prototypes proved fast and highly maneuverable and their state-of-the-art radar systems worked perfectly.

© Photo : Russian Defense MinistryPAK FA
PAK FA - Sputnik International
PAK FA

Second Stage

The T-50-6, T-50-8 and T-50-9 (maiden flights in April 2015, November 2016 and April 2017, respectively) were second-stage prototypes, enabling the use of upgraded AL-41F1 engines, similar to the ones powering the Su-35 fighters. 

The second-stage engine, dubbed “Item 30,” will feature a new fan and control mechanism; it will be more fuel-efficient and will have greater endurance.

PAK FA - Sputnik International
'Every Country Wants to Possess' Jets Such as Russia's 5th-Gen PAK FA Fighter
A pilot version of the second-stage PAK FA with a new engine is slated to fly later this year.

The T-50-6, T-50-8 and T-50-9 also have stronger airframes, bigger wingspans and make wider use of composite materials.

Flight tests are proceeding at full swing. Everything is going well. We are already testing in-flight missile launches and the plane is performing just fine,” Aerospace Forces Commander Viktor Bondarev told reported on the sidelines of the MAKS 2015 airshow.

All Set for Mass Production

In July, Viktor Bondarev said that the construction of the highly appraised ninth, 10th and 11th prototypes of the Su-57 was slated to begin shortly.

"I see no physiological limits whatsoever for PAK FA pilots. The designers are working to make sure that much of the pilot’s work is done by the plane itself,” Bondarev added.

With six Su-57s scheduled for delivery to the Aerospace Forces by next year, with mass production beginning shortly afterwards, Andrei Kots concluded.

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