Why J-31 is not using silver RCS reduction petal since you think is just a simple added on Russia engine?
Chinese Engine Development
- Thread starter jackbh
- Start date
No, I'm not deniying that but that was not the question. I only say after all I know, learned, read from various sources, these are simply AL-31FN ... maybe a bit uprated as some say but AL-31. IMO the siver coating was only done do distract from the engine supply.
What has that do do with the J-31 ... and since - at least IMO - that siver coating has no aerodynamic effect (probably only for stealth) why should the RD-93 have that too ... even more since the engine supplier is different.
Deino
No, I'm not deniying that but that was not the question. I only say after all I know, learned, read from various sources, these are simply AL-31FN ... maybe a bit uprated as some say but AL-31. IMO the siver coating was only done do distract from the engine supply.
What has that do do with the J-31 ... and since - at least IMO - that siver coating has no aerodynamic effect (probably only for stealth) why should the RD-93 have that too ... even more since the engine supplier is different.
Deino
I can't believe you don't know what's the Silver petal for. The toothsaw edge is definitely for RCS reduction. J-20 main criteria is reduced RCS. Same as J-31. If its as simple as an add on for AL-31F. They shall do it for RD-93 on J-31. If not ,the speculation is the engine is domestic for J-20. Because its not just a simple added on of silver petal on an existing foreign engine.
It doesn't matter who is the supplier becos the end user is PLAAF.Are you trying to imply Salyut is responsible for making the toothsaw silver petal? Then why Russian aircraft do not have this feature? They give the best for China and give dirt to themselves? Illogical.
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SteelBird
Colonel
For some time, people said that Shenyang is rival to Chengdu (that's one of the reason making Chengdu's aircraft don't have WS-10x). In this case, if the silver pedals are Chengdu's design, why would Chengdu give it to Shenyang? I have heard a lot of people claiming that J-15 using WS-10x but up to now I haven't seen a single of photo of such claim yet. People also said that WS-10x has no problem with serial production and PLA is confident with it; however, I still see most, if not all, production aircraft wearing Russian engines. I'm not as optimistic as you guys are on the WS-10x!
Wasn't there a earlier observation that the afterburn of the J-20 is blue and that of the J-10 is red ? Could this then have come from the same type of engines ?
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Chengdu suppose to share tech with shenyang as they are more powerful. You seeing of J-31 sharing many tech inherit from J-20. But it has not happen for engine petal. So that can only means its not the case.
As for J-15 pt 554 and 556 are using WS-10A. Go goggle the picture yrself.
sounds like "it doesn't matter that Russians are supplier, because end user is PLAAF"?
You mean painting petals with silver paint to imitate LO chevrons? No, we don't need such useless feature.
Engineer
Major
You haven't seen the photos doesn't mean they do not exist.
That's funny, because most production J-11B do not use Russian engines.
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Engineer
Major
Actually, the two companies are very much competitors despite being under AVIC. They also have different suppliers that are also competitors with one another. Furthermore, while being under AVIC is beneficial for SAC, it isn't all that beneficial and may even be disadvantageous for CAC.