J-20 5th Gen Fighter Thread VIII

siegecrossbow

siegecrossbow

General
Staff member
Super Moderator
tamsen_ikard said:
All air superiority fighters transition to multi-role after a few years of production as the next gen air superiority fighter comes along.

So, it was expected J-20 will also transition to more multirole fighter to keep relevance as 6th gen comes online.

But there is a flaw or drawback in J-20 design though that makes it a less useful as a multi-role.

Its not that big compared to J-16 and other Flankers. When I look at size comparisons, J-20 is slightly smaller length than a flanker. Keep in mind J-20 is much bigger on length than width, so its width far smaller than a flanker. So, overall area, volume and thus weapons capacity is probably less than a strike optimized flanker.

A lot of people used to say how big J-20 is, But its actually on the smaller side compared to a flanker.
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You can always carry the load externally.
 
by78

by78

General
A nice image of J-20A for the weekend.

54662519545_2657403f39_k.jpg
 
A

Aval

New Member
Registered Member
by78 said:
54664092076_2e27cb785d_o.jpg
Click to expand...

This is a really good visual comparison of the J-20S vs J-20A vs J-20. It captures more or less all the main surface-level differences that have been discussed recently:
  • J-20S and J-20A have a new, enlarged hump behind the cockpit vs J-20. This hump is also present on the J-20S in addition to already lengthening the cockpit into what would have been the J-20A's "hump" for the second pilot.
  • The differing engine petal lengths are clearly visible. The J-20A/S have clearly longer petals and slightly shorter silver collar on the WS-10C2 vs the WS-10C on the J-20.
  • The new black camo is applied on the J-20A/S, but only on the ventral side. This makes discerning the side weapon bays more difficult in the picture. The dorsal side of all the variants still use the grey two-tone pattern.
  • The EOTS-IRST of the J-20A/S are an aqua blue colour that still stands out amongst the darker blue sky backdrop and shows the entire module is glass (no sides covered), whereas the J-20 has a grey EOTS-IRST (perhaps due to the angle mostly seeing the opaque back-side cover of the module).
  • The radome of J-20A/S seem to be painted in a lighter colour than the J-20 (although this could just be the lighting), and the slightly more beak-like tip (slightly more aggressive, higher angle, shorter tapering of top of radome down to the tip) of the J-20A/S radome is just barely visible.
Are there any other major visual differences between these variants that I missed?
 
siegecrossbow

siegecrossbow

General
Staff member
Super Moderator
Aval said:
This is a really good visual comparison of the J-20S vs J-20A vs J-20. It captures more or less all the main surface-level differences that have been discussed recently:
  • J-20S and J-20A have a new, enlarged hump behind the cockpit vs J-20. This hump is also present on the J-20S in addition to already lengthening the cockpit into what would have been the J-20A's "hump" for the second pilot.
  • The differing engine petal lengths are clearly visible. The J-20A/S have clearly longer petals and slightly shorter silver collar on the WS-10C2 vs the WS-10C on the J-20.
  • The new black camo is applied on the J-20A/S, but only on the ventral side. This makes discerning the side weapon bays more difficult in the picture. The dorsal side of all the variants still use the grey two-tone pattern.
  • The EOTS-IRST of the J-20A/S are an aqua blue colour that still stands out amongst the darker blue sky backdrop and shows the entire module is glass (no sides covered), whereas the J-20 has a grey EOTS-IRST (perhaps due to the angle mostly seeing the opaque back-side cover of the module).
  • The radome of J-20A/S seem to be painted in a lighter colour than the J-20 (although this could just be the lighting), and the slightly more beak-like tip (slightly more aggressive, higher angle, shorter tapering of top of radome down to the tip) of the J-20A/S radome is just barely visible.
Are there any other major visual differences between these variants that I missed?
Click to expand...

Ventral fins on J-20A/S are completely solid whereas ones on older J-20 have a metal frame around it for structural support. This should improve RCS reduction.
 
T

taxiya

Brigadier
Registered Member
ismellcopium said:
Generations are all well and good, but how much of an actual detection ability difference does it translate into, especially against small LO targets like cruise missiles?
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No one here has the tool or formular to do that translation. Only the military and designer knows, and they won't tell us. But if you are trained in electrical engineering, especially radio engineering and signal processing you can get the feeling of how big difference it is, I mean very big.

Read this link
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1752951440811.png
 
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