J-20 5th Gen Fighter Thread IV (Closed to posting)

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Blitzo

Blitzo

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latenlazy said:
Interesting. His figures for wingspan and wing area are roughly around the ones I did a while back.
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Yeah, I'm glad he at least got that part right.

And can you edit your post to not include the whole article in your quote? Super disappointing to see a massive quote but a one sentence response :(
 
plawolf

plawolf

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Would not surprise me if the dimensions came from someone's work here tbh.

I'm more interested in where he got the weight and fuel figures from.

Did he just lick a finger and stick it in the air?
 
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latenlazy

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plawolf said:
Would not surprise me if the dimensions came from someone's work here tbh.

I'm more interested in where he got the weight and fuel figures from.

Did he just lick a finger and stick it in the air?
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Could have consulted with some engineers about weight ranges...

EDIT: Not sure Sweetman got it right on the weapons bay size. I think he misunderstood bigger missiles to be a smaller bay, when in fact the J-20's bay is about the size of the F-22's, and maybe slightly bigger.
 
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shen

shen

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plawolf said:
Would not surprise me if the dimensions came from someone's work here tbh.

I'm more interested in where he got the weight and fuel figures from.

Did he just lick a finger and stick it in the air?
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He had someone make a CAD drawing based on the known measurements. That gives you volume. Then extrapolate based on know percentage value of other 5th generation fighters. Educated guess, but still guessing.
 
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latenlazy said:
Could have consulted with some engineers about weight ranges...

EDIT: Not sure Sweetman got it right on the weapons bay size. I think he misunderstood bigger missiles to be a smaller bay, when in fact the J-20's bay is about the size of the F-22's, and maybe slightly bigger.
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Four missiles in the bay might be PL-21s, which are a lot bigger than an AMRAAM or PL-12.

Interestingly, that poster in Zhuhai 2014 also shows four ramjet missiles (AA?).
 
Blitzo

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Skywatcher said:
Four missiles in the bay might be PL-21s, which are a lot bigger than an AMRAAM or PL-12.

Interestingly, that poster in Zhuhai 2014 also shows four ramjet missiles (AA?).
Click to expand...

Well that part of sweetman's article obviously comes from the photos of 2002's weapons bay showing a PL-15 (PL-12 with smaller fins) and seemingly only able to hold four.
However I am half hoping, half expecting, 2011 and 2012 to have a slightly wider bay. Eyeballing 2002's bay, I think it wouldn't take much for six PL-15s to fit in ala AMRAAMs in F-22. Nor do I think PLAAF would be entirely content with less missiles on their air superiority fighter than F-22.
 
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latenlazy

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Bltizo said:
Well that part of sweetman's article obviously comes from the photos of 2002's weapons bay showing a PL-15 (PL-12 with smaller fins) and seemingly only able to hold four.
However I am half hoping, half expecting, 2011 and 2012 to have a slightly wider bay. Eyeballing 2002's bay, I think it wouldn't take much for six PL-15s to fit in ala AMRAAMs in F-22. Nor do I think PLAAF would be entirely content with less missiles on their air superiority fighter than F-22.
Click to expand...

Or maybe they're working on slightly smaller missiles.
 
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