J-20... The New Generation Fighter III

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plawolf

plawolf

Lieutenant General
It is nigh on impossible to judge the effectiveness of avionics on in-service and operationally deployed aircraft (just visit any Typhoon v Rafale Thread), how do you guys think you will be able to determine which still-in-development-and-not-yet-finalized-aircraft will have better avionics?

If this keeps going on, I foresee many a pages of fruitless speculation until everyone agrees at disagree.

Can we not just jump right to the end and the effort, and very likely bad feeling too, and instead discuss things we actually know?
 
H

HKSDU

Junior Member
Inst said:
The F-35's main advantage would be its extensive EW suite; compared to the J-20 and PAK-FA, it would combine high stealth with heavy EW jamming, leading to a BVR advantage even if it has inferior maneuverability in WVR and questionable maneuverability at BVR.

In the same way, the PAK-FA is using next-generation implementations of AESA; which is to say, there are L-Band AESAs emplaced onto its wings alongside an EODAS. We haven't really seen anything to compare on the J-20; the sole innovation is that the J-20 uses a canard-lerx-delta set-up to enable decent low-speed maneuverability while reducing its front profile and total drag.

What is at least interesting about the three stealth fighters is that they're all so different. While all three fighters have stealth capabilities, all of them have different special advantages that the others have not yet duplicated.
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F-35 high stealth??? Please go on. F-35 looks like from all the upgrade and changes they ran out of room in airframe now you see all the bulges as result. That's the vibe. But then apparently those bulges play a role in reducing RCS, which I feel is just an excuse to save their ass.
 
Air Force Brat

Air Force Brat

Brigadier
Super Moderator
Yes we could rename the F35 the Question Mark 1, and now to get back to the J-20 before the mods excommunicate us, how bout those floppy canards dudes? In reality they do function somewhat independantly, if you note their downforce on the nose during high alpha or pulling even modest g's its quite interesting. To answer a previous question I posed about all the control surfaces moving rapidly at once right after engine startup, apparently the control surfaces are basically resetting to some null value? or default indexing, I believe I read something to that effect? I would love to see the smoke in the windtunnel to understand the J-20s aeros, particularly at High Alpha. I read on some of the older posts in this thread that some were questioning whether or not the J-20 would have OVT. I am also wondering whether or not it will actually supercruise, since that seems to be a stated objective of several designs that to date have not exhibited that capability?
 
MiG-29

MiG-29

Banned Idiot
HKSDU said:
F-35 high stealth??? Please go on. F-35 looks like from all the upgrade and changes they ran out of room in airframe now you see all the bulges as result. That's the vibe. But then apparently those bulges play a role in reducing RCS, which I feel is just an excuse to save their ass.
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The answer is continuos curvature, today stealth theory is not based upon flat panels as F-117, but upon a mixture of flat panels and continuos curvature, in fact the DSI on J-20 is bulge, and they are big ones, same is for the J-20`s canopy which is a big bulge too but upon continuos curvature theory the bulge is stealthy from frontal sector stealth but not so laterally.
F-35 is very stealthy frontally, however the critics of its stealth say it is not so good laterally and say J-20 has better lateral stealth wich is only true for the engine nacelles but not for the canards and ventral fins.

In terms of stealth F-22 continous to be the bench mark for stealth due to the use of thrust vectoring which reduces aerodynamic drag and RCS and its full aspect stealth, something that niether F-35 or J-20 have.
 
Air Force Brat

Air Force Brat

Brigadier
Super Moderator
MiG-29 said:
The answer is continuos curvature, today stealth theory is not based upon flat panels as F-117, but upon a mixture of flat panels and continuos curvature, in fact the DSI on J-20 is bulge, and they are big ones, same is for the J-20`s canopy which is a big bulge too but upon continuos curvature theory the bulge is stealthy from frontal sector stealth but not so laterally.
F-35 is very stealthy frontally, however the critics of its stealth say it is not so good laterally and say J-20 has better lateral stealth wich is only true for the engine nacelles but not for the canards and ventral fins.

In terms of stealth F-22 continous to be the bench mark for stealth due to the use of thrust vectoring which reduces aerodynamic drag and RCS and its full aspect stealth, something that niether F-35 or J-20 have.
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Well stated, the J-20 has obviously set its sight on frontal aspect, but is overall quite stealthy, and should be fast, although I'm not sure how fast it will be in supercruise, that remains yet to be seen!
 
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