Chengdu J-20 news and analysis Part III

[SUPER=BUG]

 

[snne]

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This is an ancient photo, pal.

 

[MrPhantomMan]

Are there any authoritative documents on the aerodynamics of the J20? Like best guesses on how well she might perform, etc.

 

[stealthflanker]

Are there any authoritative documents on the aerodynamics of the J20? Like best guesses on how well she might perform, etc.

No, and it is unlikely to be released in public in near term by authoritative figures. You have to make your own estimates and defend it when bring it in public forums.

View attachment 742214

Now replace this with PL-17 or other pods. It's gonna be awesome.

 

[NovaGA]

Are there any amateur calculations of J-20 area-rule based on constructed 3d model?

 

[stealthflanker]

Are there any amateur calculations of J-20 area-rule based on constructed 3d model?

No. I do have however J-20 3D model. Tho i'm not sure how to "slice" the model and do the measurement.

 

[NovaGA]

I guess “slicing” is the hardest part, as I cant imagine any simple way to do it «non-manually», but if you succeed, a comparison with other fifth generation fighters would be appreciated, if you happen to have models for them too.
You might ask Paralay for help, he did arearule calculation for his model of MiG-70.1.

 

[sferrin]

I guess “slicing” is the hardest part, as I cant imagine any simple way to do it «non-manually», but if you succeed, a comparison with other fifth generation fighters would be appreciated, if you happen to have models for them too.
You might ask Paralay for help, he did arearule calculation for his model of MiG-70.1.

If the model was "air tight" you could slice the solid fairly easily in Solidworks. Then you just get the area of the sections and adjust for scale.