J-20 5th Gen Fighter Thread V

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siegecrossbow

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Can anyone provide accurate estimate Gross weight of J-20? Some source said it is around 19 tons.

I think it's an estimate based on the known weight of F-22/T-50. Since the J-20's body length (head to nozzle) is around two meters longer than that of the raptor and its cross sectional area is around the same, it is probably heavier.
 

plawolf

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I think it's an estimate based on the known weight of F-22/T-50. Since the J-20's body length (head to nozzle) is around two meters longer than that of the raptor and its cross sectional area is around the same, it is probably heavier.

Not necessarily.

We already know that the J20 uses the latest in manufacturing technology such as 3D printing for critical structural parts, and that gives significant weight savings compared to the forging technique used for the F22.

There have been detailed posts about that in this very thread.

Something else to consider is the fact that Chinese engineers knew at the conceptual stage that engines was going to be a major risk factor, whereas the Americam engineers development the F22 were able to almost take for granted the fact they will have a monstrously powerful engine available to power their jet.

That will impact the design aims of he designs, which means the Chinese engineers would have placed a far greater emphasis on weight management on the J20 compared to the F22.

I think the J20 will be a lot lighter than what most pundits expect.
 

Deino

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Why do you say that?

Edit: Dao Cheng Ya Ding airport is in Sichuan, going by the geotag on the photo


Really ... I thought this is Daocheng ??
Indeed, located within Sichuan, it is however under the administration of the Garze Tibetan Autonomous Prefecture.

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So they are performing high-altitude tests (4,411 m)?
As far as I remember correctly, the Y-20 did the same there in June 2015.

Deino
 

SinoSoldier

Colonel
Really ... I thought this is Daocheng ??
Indeed, located within Sichuan, it is however under the administration of the Garze Tibetan Autonomous Prefecture.

Please, Log in or Register to view URLs content!


So they are performing high-altitude tests (4,411 m)?
As far as I remember correctly, the Y-20 did the same there in June 2015.

Deino

This is a stretch, but could the high-altitude tests be related to the eventual integration of a new (possibly WS-15) prototype engine?
 
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