J-20... The New Generation Fighter II

[Martian]

China's J-20 has advanced DSI technology. F-22 lacks DSI.

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"The diverterless supersonic inlet avoids a signature problem caused by a conventional boundary layer diverter plate – the F-22 has a conventional inlet, which is likely to require extensive radar absorbent material (RAM) treatment."

 

[kyanges]

Courtesy of GT from CDF

We still can't nail down the length from this picture. .

Oh, what's that thing?

 

[latenlazy]

Anyone else fascinated by the texture and smaller details of the unknown engine nozzle?

 

[Quickie]

there are VERY few chinese or indian working in the defense industry, corporation like lockeed or others need security cleareance, and most chinese grad have hard time to get H1B, let along clearance. On top of that you have to be US citizen to work on project like B2, F22. If you look at employees from ANY defense insustry, you will notice majority are caucasian. And most chinese or indian you seen are likely 2nd generation immigrate. These industry are not yahoo/google

Most of us have no way of checking your claim of race discrimination in US defence industry but one thing is for sure. The high number of these scientists/researchers that presumably failed to pass security clearance will free up many caucasian researchers to do military related work. In addition I really doubt it's that easy to draw the line between military related work and that of civilian.

 

[bd popeye]

THis is the fastest growing and most inpressive thread in the history of SDF! 45 pages in only 4 days! Awesome.

The next thread to explode will be the All About The Chinese Aircraft Carrier Thread.
When the Varyag finally goes to sea I expect that thread to go off the hook! I really expect that ship to go to sea this year.

Keep up the great discussion gents!

 

[zoom]

The next thread to explode will be the All About The Chinese Aircraft Carrier Thread.
When the Varyag finally goes to sea I expect that thread to go off the hook! I really expect that ship to go to sea this year.

I totally agree and if it is touch and go whether it goes this year or next,i think they will redouble their efforts to ensure it happens this year as a mark of respect to the recent news of the death of Liu Huaqing .

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[vesicles]

THis is the fastest growing and most inpressive thread in the history of SDF! 45 pages in only 4 days! Awesome.

The next thread to explode will be the All About The Chinese Aircraft Carrier Thread.
When the Varyag finally goes to sea I expect that thread to go off the hook! I really expect that ship to go to sea this year.

Keep up the great discussion gents!

especially impressive since this new thread was only made after the actual flight took place. I think we covered 10 pages in on the night of the flight??

 

[Martian]

J-20's Low Observable Axisymmetrical Nozzle (i.e. LOAN) technology

China's J-20 stealth fighter engine nozzles

China's J-20 stealth fighter engine nozzles (another view)

F-35 Lightning II engine nozzle

Those are refined Low Observable Axisymmetrical Nozzles and first tested on a F-16 for the JSF programme. The LOAN was developed after the F-22 and that's why the Raptor doesn't have them.

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One type of two dimensional nozzle is a single expansion ramp nozzle referred to as a SERN nozzle. SERN was developed as a variable area non-axisymmetric nozzle with a unique installed performance characteristic of low weight and frictional drag because there is no or a smaller lower cowl. Low observable (LO) exhaust nozzle technology is being developed for current and future fighter/attack aircraft. LO nozzles should be integrated cleanly with the aircraft airframe and not degrade the aircraft's performance due to weight and drag penalties. Exhaust systems for combat aircraft should possess characteristics to enhance aircraft survivability, including high internal performance, reduced radar cross section (RCS), low infrared (IR) signatures, low installed weight, low installation drag and, in some cases, thrust-vectoring capabilities.

Note: Thank you to Shabi1 for the post.

 

[Maggern]

We still can't nail down the length from this picture. .

If you check above, we estimated the length to be 19-20m based on a satellite picture which has yet to be proven fake.

 

[kyanges]

If you check above, we estimated the length to be 19-20m based on a satellite picture which has yet to be proven fake.

Thanks, I did see that. I just want to know if it's 19 or 20. . It took like a year or something before China released the basic specs on the J-10 right? And that was after the official unveiling... .