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US to Develop 6th Generation Fighters to Outrun Russian, Chinese Jets

© Flickr / Mario Sainz MartínezSukhoi T-50 PAK FA Prototype
Sukhoi T-50 PAK FA Prototype - Sputnik International
The US Air Force and Navy plan to pursue the development and acquisition of sixth-generation F/A-XX fighters; they consider the fleet of existing jets incapable of handling their Russian and Chinese fifth-generation counterparts, something which they feel constitutes a real threat to national security.

The Chinese Chengdu J-20 and the Russian Sukhoi T-50 PAK-FA are becoming a real threat to the US Air Force and Navy, according to The National Interest, an international affairs magazine.

© Sputnik / Valeriy MelnikovSukhoi T-50 PAK FA
Sukhoi T-50 PAK FA - Sputnik International
Sukhoi T-50 PAK FA

“When you see these next-generation fighters, the PAK-FA out of Russia and the J-20 out of China, and some of their new missile technology, our advantage is dwindling,” the magazine quotes one senior industry official as saying, without disclosing his name.

© Flickr / tataquaxBoeing F/A-18E/F Super Hornet
Boeing F/A-18E/F Super Hornet - Sputnik International
Boeing F/A-18E/F Super Hornet

Neither of the two jets currently in service with the US Air Force and Navy, the Lockheed Martin F-35C Joint Strike Fighter and the Boeing F/A-18E/F Super Hornet, can adequately handle new threats like the Chinese Chengdu J-20 or the Russian Sukhoi T-50 PAK-FA, the magazine cites “some industry insiders with deep knowledge of both jets” as saying.

© Flickr / Ron KroetzF-35 Lightning - Miramar, CA, USA
F-35 Lightning - Miramar, CA, USA - Sputnik International
F-35 Lightning - Miramar, CA, USA

The Chinese J-20 is particularly threatening, according to “one senior industry official with an extensive fighter pilot background.”

Only the Lockheed Martin F-22 Raptor seems to offer any real advantages against the J-20 and PAK-FA.

© Flickr / Airman MagazineAn F-22 Raptor
An F-22 Raptor - Sputnik International
An F-22 Raptor

The magazine identified the areas where Russian and Chinese jets outperform the US fighters and stressed what should be of primarily importance for the next generation jet.

Supersonic performance is one of the areas in which the J-20 shines, compared with the US jets. The J-20 can cruise at high supersonic speeds without using fuel-guzzling afterburners for extended periods, which allows it to impart far more launch energy into its missiles.

© Flickr / Azhari Zaki SentanuThe Chinese Stealth Fighter, Chengdu J-20
The Chinese Stealth Fighter, Chengdu J-20 - Sputnik International
The Chinese Stealth Fighter, Chengdu J-20

“Take a J-20 that can cruise at mil power supersonic out to 300 plus miles before he has to turn around and come back, [this] makes it really hard for a subsonic fighter [that needs afterburners for supersonic flight] to go into that environment and survive,” said the senior industry official. “Especially in an away game when we are outnumbered.”

The strike fighters therefore should be designed primarily for an air-to-air mission, the magazine says.  Strike capability can be treated as a secondary concern.

“The F/A-XX requirements may well be biased towards fleet air defense versus strike operations,” the website quotes another source as saying. “The primary issue is the likely threat of numerical superiority in multiple dimensions.”

The expert s also speculate on the need to develop new weapons for the jets, if the six generation F/A-XX is to be a supersonic design.

© Flickr / Times AsiBoeing unveils updated F/A-XX sixth-gen fighter concept
Boeing unveils updated F/A-XX sixth-gen fighter concept - Sputnik International
Boeing unveils updated F/A-XX sixth-gen fighter concept

“If the future F/A-XX is going to have to carry more missiles, it will necessarily need to have a large volume—if the jet is going to be stealthy,” the senior official has said, “But because a flying wing design is needed for all-aspect broadband stealth—there is no room to stack weapons bays along the length of the jet. […] By necessity, a high performance supersonic aircraft has to be long and slender in order to have a good “fineness ratio” for efficient performance.”

“A supersonic, flying wing fighter will likely require smaller missiles, or rely on directed energy weapons like a high energy laser to minimize internal payload volume,” the second official said.

John Stillion, an analyst at the Center for Strategic and Budgetary Assessments, however, recently argued that a next-generation fighter would not necessarily be a supersonic fighter, but rather a subsonic stealthy flying wing that would carry extremely long-range missiles.

Stillion therefore supposed that stealth, payload and sensor capability would trump traditional fighter metrics like speed, altitude and turn capability.

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