Chinese Engine Development
- Thread starter jackbh
- Start date
Wonderful manipulation skill
J-20 Nozzle when petal compress. notice the serrated edges
You purposely use a picture of J-20 not showing the serrated edge. Russian just dont have the skill to make such advance feature. And the you can't rule out what advantage the silver petal might give the engine.
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MiG-29
Banned Idiot
they look like painted, i agree, but it is hard to be sure unless there is an official admission they are Al-31, but certainly they look Al-31
Hey do you know where this information comes from?
Представитель Центра АСТ имел на авиасалоне в Чжухае беседу с заместителем директора Шэньянского института двигателестроения, который сообщил, что в настоящее время ресурс китайского авиационного двигателя WS-10A Taihang до капитального ремонта составляет всего 300 часов. Прогресс с повышением ресурса и других характеристик есть, но медленный. По егоо словам, невозможно назвать какую-то одну проблему, по которой в двигателестроении КНР сложная ситуация - там имеется комплекс проблем, в том числе организационных и кадровых. Ситуация с двигателем WS-13 Taishan, который должен заменить российский двигатель РД-93, еще более сложная, чем с Taihang - ресурс двигателя WS-13 меньше ресурса WS-10A примерно раза в два.
I mean there is a more official source for this?
MiG-29
Banned Idiot
thanks
Quickie
Colonel
Whatever the case, the fact is the average jet engine petals can't be simply painted over because of the very high temperature of the jet exhaust.
On the other hand, there was a Chinese article on the use of high heat resistance jet engine petals probably for the purpose of reduction of heat signature.
Looks like there 2 layers to me. The silver layer is the outer covering and I don't mean painting. Inner one could very well be AL31F.
The extra silver covering add-on pierce obviously used to reduce RCS and mask its IR sig and could be entirely a separate pierce than the engine itself.
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They have different requirements. For example, The J20 uses single pierce glass canopy while J21 still uses the traditional one.
Have you read something about high-temperature paints and coatings?