J-20 5th Gen Fighter Thread VI

[Bhurki]

I count not one, not two, but three yellow-primer J-20s! Too bad we can't confirm their engines.

Please, Log in or Register to view URLs content!

Any estimates on current production number/rate?

 

[Air Force Brat]

Possibly pliable and moves with the actuator in order to maintain stealth in deflected positions. Otherwise, deflection may reveal some non-stealthy surfaces (whether by shape or inability to use stealth covering in between moving parts with tight clearance).

Yes, they are flapperon/elevon actuator "gap seals", there are also similar "flap gap seals" between the trailing edge of the main wing and leading edge of the flapperons/elevons.

Note there is a stiff fairing over the leading and trailing edges of the actuators, likely carbon fiber, and this flexible gap seal closes bridges that gap when control surfaces are deflected out of the in trail position. They are fixed to the front section of the stiff leading edge fairing, allowing the trailing edge stiff fairing to push them aside as needed for clearance to actuate the control surfaces.

they serve a primarily aerodynamic purpose, streamlining the flap actuator assembly, and preventing the leakage of high pressure air from below the wing between the trailing edge of the wing, and leading edge of the flapperons/elevons.

I believe we can see that those gaps on the trailing edge of this flexible seal close up as speed increases, and control deflections are minimized by the FCS.

Now they also do reduce RCS spikes due to hardware that would otherwise be "hanging out in the breeze.

 

[Air Force Brat]

I count not one, not two, but three yellow-primer J-20s! Too bad we can't confirm their engines.

Please, Log in or Register to view URLs content!

Yes, things are looking up for the J-20 enterprise, we should be nearing 20 known LRIP aircraft in service very soon! erring on the conservative side likely, but there may indeed be several more?

 

[Air Force Brat]

I think that tape is still there on that F35?, i guess it just doesn't cover the gap when actuated too far

It looks like the tape only has adhesive on half of it and is rather stiff.

yes, its not tape on the J-20, but a flexible carbon fiber "gap seal"

 

[mangchaocs]

I count not one, not two, but three yellow-primer J-20s! Too bad we can't confirm their engines.

Please, Log in or Register to view URLs content!

My bad···If i ride bicycle a little bit faster I could be able to catch the moment of 3rd J-20 landing over my head···

 

[siegecrossbow]

My bad···If i ride bicycle a little bit faster I could be able to catch the moment of 3rd J-20 landing over my head···

You live in Chengdu? That's awesome. I don't think anyone from our forum has seen a J-20 in person before.

 

[PiSigma]

You live in Chengdu? That's awesome. I don't think anyone from our forum has seen a J-20 in person before.

Hehehe.. someone here have... From a short distance...

 

[Deino]

My bad···If i ride bicycle a little bit faster I could be able to catch the moment of 3rd J-20 landing over my head···

So these are your images?? What a pleasant surprise and a wellcome on board here.

 

[mangchaocs]

You live in Chengdu? That's awesome. I don't think anyone from our forum has seen a J-20 in person before.

Yeah，I uploaded the photo on cjdby but later I remove it for saving my post in case…you know~

Unfortunately my apartment and workplace are under Shuangliu airport LZ. Never saw J-20 in Chengdu before.

My first view of J-20 was in Zhuhai 2018.

 

[mangchaocs]

So these are your images?? What a pleasant surprise and a wellcome on board here.

Thanks! It's my pleasure to see my photo shared here