J-20 5th Generation Fighter VII


latenlazy

Colonel
If by “dogfight” you mean within visual range/at or post merge then you are very much incorrect. Most BFM/dogfights are at full afterburner post the initial turn. Energy is gained by easing the turn but this will lose you turning rate or blow out the radius, so it’s a delicate balance between rate of turn and energy lost/gained.

Where a TVC J-20 is going to be advantageous over non-tvc is in the slow fight. Just like the TVC Flanker.
Remember, the context of my original comment was on defensive maneuvers, of which both missile evasion and energy recovery are included. You’re never going to sustain supersonic speed, and you wouldn’t want to, while positioning to get a shot off, but the moment you’re on the wrong end of a lock or you’re at risk of being out maneuvered, regaining energy is your number one priority.
 

Bltizo

Lieutenant General
Staff member
Super Moderator
Registered Member
Supercruise means sustained travel at supersonic speed, I don't see what that has to do with air combat energy management

Sustained travel yes, depending on definition, but also a part of it is being able to achieve supersonic speed and sustain it without afterburners.
Greater ease of efficiently achieving supersonic speeds without needing afterburners is indeed relevant for energy management.
 

latenlazy

Colonel
Supercruise means sustained travel at supersonic speed, I don't see what that has to do with air combat energy management
Supercruise means being able to sustain supersonic flight without afterburners. That also means the combination of available thrust and drag characteristics makes acceleration into the supersonic regime a viable way to recover more energy and regain energy advantage.
 

FangYuan

Junior Member
Registered Member
ws-15 is more powerful than WS-10. But modern warfare depends more on the power of sensors, communications, avionics.

The J-20 was unaffected by the lack of a WS-15 engine. China will continue to improve the WS-10 and optimize subsystems.
 

gelgoog

Senior Member
Registered Member
Supercruise is used for a lot of things. For one not having the afterburners turned on reduces your heat signature. So it is important when you want to do penetration of enemy airspace without getting detected early. But in combat airplanes typically turn on reheat (afterburners). Unless they are low on fuel for some reason.
 

Deino

Lieutenant General
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Guys ...we are once again in a long discussion on aerial combat and so on, which is in no way related specifically to the J-20.

Come back to the topic or discuss this in a better fitting thread.
 

Deino

Lieutenant General
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Sorry, but it seems as if I forgot to post this here too:

I must admit, I'm surprised that I missed this image, but perhaps this is the second J-20A prototype no. 2022 powered by WS-10C engines.

So far I knew only a hand-full of images showing the first one no. 2021, which made its first flight on 19. September 2017 and reports a second one flew eventually for the first time in January 2018.

(Images via Huitong's CMA-Blog)

J-20A + WS-10C maybe 2022.jpg

 

plawolf

Brigadier
Sorry, but it seems as if I forgot to post this here too:

I must admit, I'm surprised that I missed this image, but perhaps this is the second J-20A prototype no. 2022 powered by WS-10C engines.

So far I knew only a hand-full of images showing the first one no. 2021, which made its first flight on 19. September 2017 and reports a second one flew eventually for the first time in January 2018.

(Images via Huitong's CMA-Blog)

View attachment 66099


Hold up, anyone else see the super thick black RAM layer on the panel just above the intake?

I don’t think I have seen that kind of RAM treatment on anything other than external doors that can and do open during flight, like the weapons bay doors and landing gear doors (interesting enough, not on the IRF probe doors).
 

Deino

Lieutenant General
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Hold up, anyone else see the super thick black RAM layer on the panel just above the intake?

I don’t think I have seen that kind of RAM treatment on anything other than external doors that can and do open during flight, like the weapons bay doors and landing gear doors (interesting enough, not on the IRF probe doors).


You mean this one?

1606755199935.png

Indeed ... not visible on regular J-20s!

1606755260644.png
 

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