Chinese Engine Development

manqiangrexue

Brigadier
I'm not even sure if it was true in 2010.

We knew that the first batch/regiment of J-11Bs used Al-31Fs because at the time WS-10s weren't ready enough, and we also had pictures of J-11Bs at the factory without engines waiting for WS-10s to arrive to fit them.

But I was never aware of in service WS-10 equipped J-11Bs (or any WS-10 SAC equipped flankers for that matter) ever having "half" of a unit or even the full fleet "in constant repair". They either had WS-10s in regular service (without any issues heard) or they had Al-31s (for first batch J-11Bs) or that batch which had yet to have engines.


I'd like SamuraiBlue to demonstrate where his claim is from, because such an ambitious statement like that cannot really be thrown around here without some serious reliable source backing it up.
He got it from the same source that told him that China's use of genetically-modified T-cells to cure cancer is a technique easily used by terrorists in their kitchens to make bio-weapons LOL
 

Blitzo

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He got it from the same source that told him that China's use of genetically-modified T-cells to cure cancer is a technique easily used by terrorists in their kitchens to make bio-weapons LOL

maybe, but I'd like to give him a chance to properly defend himself as well.

of course, if he can't or doesn't, then the only conclusion I can make is that he was indeed spouting nonsense.
 

SamuraiBlue

Captain
Various Japanese critics in the field of quality management and military analysis.

There are also various reports by nations that say they will not import anymore PRC made equipment like the Nigerian Air force stating that in the past 5 years 4 out of 12 fighter planes crashed due to engine failures and the rest are grounded and are used for static training at their academy.
I also hear that Pakistan had rejected PRC engines due to quality issues and are favoring Russian made ones for their fighter planes.

Here is a comment from the horse's mouth within Wiki;
In April 2009, Lin Zuoming, head of AVIC, reported that the engine's quality was unsatisfactory. In 2010, it was reported that reliability was also poor; the WS-10A lasted only 30 hours, while the AL-31 needed refurbishing after 400 hours.The quality problems encountered with the WS-10A reflected the state of the Chinese aerospace industry; AVIC initiated a general effort to improve quality control throughout its production chain in 2011.

Even with the latest J-31 maiden test flight we saw black smoke coming out of the exhaust meaning the engine was not able to maintain complete combustion.

Do I need to go on?
 

Blitzo

Lieutenant General
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Various Japanese critics in the field of quality management and military analysis.

There are also various reports by nations that say they will not import anymore PRC made equipment like the Nigerian Air force stating that in the past 5 years 4 out of 12 fighter planes crashed due to engine failures and the rest are grounded and are used for static training at their academy.
I also hear that Pakistan had rejected PRC engines due to quality issues and are favoring Russian made ones for their fighter planes.

All varying degrees of truth and untruth, to my knowledge.

-Japanese critics are not particularly relevant for Chinese military analysis I'm afraid. Credibility and claims would have to be established on a case by case basis.
-list any reports by nations which say they will not import Chinese military equipment?
-do you have a report for Nigeria not buying anymore Chinese equipment? Also please remember that Nigeria only has 12 fighter jets in service all of which are F-7s anyway.
-Pakistan? Are you talking about JF-17? Because the WS-13 isn't even ready for JF-17 yet as far as we know, so it shouldn't even be on offer.

But in the end none of these relate to either WS-10 or SAC Flankers anyway.



Here is a comment from the horse's mouth within Wiki;


Do I need to go on?

Actually yes you do, because this part that you quoted from Lin Zuoming is very old news and at that time the WS-10 was not even installed on any aircraft at that time.
More importantly the part of the wikipedia entry citing 30 hours is from the Washington Post -- I remember when that first came out and was roundly dismissed. Unfortunately the Washington Post isn't exactly considered a respectable source nor is the author of that article considered an expert in these matters ,and I don't think any Chinese language article or even rumour has corresponded with that claim either.

More importantly even if all of that quoted part you mentioned was true, it still doesn't relate to your claim either.

So let me repeat, do you have any real sources for where you heard that "half of them are in constant repair"?


I'll save you the trouble -- how about you just acknowledge that you pulled it out of your backside. If such a claim or fact existed then we would well be aware of it here.

please remember that all of us (correction: or at least many of us) here have spent years carefully watching and scrutinizing every detail and rumour surrounding Chinese military matters including big ticket items like WS-10.
BS claims don't fly well here.
 

dingyibvs

Senior Member
Various Japanese critics in the field of quality management and military analysis.

There are also various reports by nations that say they will not import anymore PRC made equipment like the Nigerian Air force stating that in the past 5 years 4 out of 12 fighter planes crashed due to engine failures and the rest are grounded and are used for static training at their academy.
I also hear that Pakistan had rejected PRC engines due to quality issues and are favoring Russian made ones for their fighter planes.

Here is a comment from the horse's mouth within Wiki;


Even with the latest J-31 maiden test flight we saw black smoke coming out of the exhaust meaning the engine was not able to maintain complete combustion.

Do I need to go on?

Are those the same Japanese experts who haven't come up with a decent plane since the Zero? You do realize that Nigeria is in negotiation to acquire JF-17s, right?
 

SamuraiBlue

Captain
All varying degrees of truth and untruth, to my knowledge.

-Japanese critics are not particularly relevant for Chinese military analysis I'm afraid. Credibility and claims would have to be established on a case by case basis.

Japanese critics are very much knowledgeable as any other critics. Just because they do not write in English for peers is not a reason you can brush them away as irrelevant.
The quality management people are the ones I listen to the most. I even heard it from people at DJI saying their products are reliable because all parts are imported from Japan. They were most critical about gears and ball bearing saying without Japanese parts their drones would not fly straight.
Since there are no such thing as military grade ball bearings or gears and they are included within almost all moving machinery they would all be affected.
Same with Chinese made car engines in which I hear many models adopts Mitsubishi engines to gain reliability.

I don't only about read them but also hear them directly from the people who actually does quality management for various manufacturers since I work in a related field.
 

Blitzo

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Are those the same Japanese experts who haven't come up with a decent plane since the Zero? You do realize that Nigeria is in negotiation to acquire JF-17s, right?

also, let's not forget two of the biggest ticket items purchased by the NIgerian military in recent years are the two P18N corvettes...

Out of all the countries to bring up as an example of supposedly being unsatisfied with Chinese military equipment Nigeria is a poor choice lol.
 

Blitzo

Lieutenant General
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Japanese critics are very much knowledgeable as any other critics. Just because they do not write in English for peers is not a reason you can brush them away as irrelevant.
The quality management people are the ones I listen to the most. I even heard it from people at DJI saying their products are reliable because all parts are imported from Japan. They were most critical about gears and ball bearing saying without Japanese parts their drones would not fly straight.
Since there are no such thing as military grade ball bearings or gears and they are included within almost all moving machinery they would all be affected.
Same with Chinese made car engines in which I hear many models adopts Mitsubishi engines to gain reliability.

I don't only about read them but also hear them directly from the people who actually does quality management for various manufacturers since I work in a related field.

And how many Japanese suppliers are there for Chinese military equipment do you think, to be able to have an informed and accurate opinion about the state of Chinese weapons developments?

edit: don't take this as something against "Japanese critics" -- I am very skeptical to commentators from many nations and languages and even some Chinese media outlets as well who claim to know detailed information about Chinese military developments. The simple fact of the matter is that there are only a few collection of truly reliable sources on Chinese military developments and even those are rarely specific in technical content. So I am just as skeptical towards any bizarre claims regarding Chinese military matters by Japanese analysts as I would be by English language analysts and even Chinese language pundits or media outlets too.

But more importantly, you still have yet to produce any sort of relevant let alone credible evidence to back up your original, ambitious and very specific claim

If you continue to avoid providing evidence on this matter or do not even acknowledge this matter, then I am going to have to assume that you concede that your claim was BS.
 
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