From the videos it seems like they are pulling that same trick, except this time the cloud is too low and it disappears almost as soon as it goes vertical.
J-20 5th Generation Fighter VII
- Thread starter siegecrossbow
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May be it's not carbon fiber. Carbon fiber would never be used for high temperature applications.
Ablative use in that article means it's ginded down by heat slowly transforming it in another product. That formulation is not very good for a jet engine nozzle. But anyway, carbon fiber is quite heat resistant making it an ideal alternative to metals and steel.
I know, this is more my topic or shall I say obsession?!
The four J-20A attending the flight demonstration at Zhuhai are the serial numbers 78037, 78038, 78130 and 78131 assigned to the 172nd Air Brigade PLAAF Cangzhou Flight Training Base. (Image via @人民画报 from Weibo)
As with last year the EOTS windows are completely covered.
The black material is only the outer most layer of the nozzle, so should be insulated from the heat closer to the nozzle flame. But I have considered the possibility that they’re ceramics instead. Either way they’re not metal.
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