Chengdu J-20 5th Generation Aircraft News & Discussions

[ChineseTiger1986]

Two things.

1. Search for 'TBO of WS-10A Engines'.

2. J-10A crashes and reasons.

Then ping me again for further discussion and clarifications.

All J-10A use the AL-31FN engine so far, only one prototype of J-10B uses the WS-10X engine.

So you mean there won't be Russian engine in the j20.
Russian engines will be only used on Protos and for R&D

The first prototype of J-20 appeared in December 2010, it seemed to have equipped with the modified version of AL-31 series.

 

[ChineseTiger1986]

Haters can keep hating, but China's engine development won't be stalled because of their ignorance.

Just like China's economy won't be crashed because of the haters.

 

[SQ8]

@Oscar : appreciated.
Please answer post 8 wrt to cirr's post 7.

Russian engines will probably stay on for the prototypes.. The WS-10 series will have to suffice for early models.
However, the issue with Chinese engines is not with design.. but with materials.
Think of the SR-71 but made with aluminium.. it would melt away.

 

[ChineseTiger1986]

Russian engines will probably stay on for the prototypes.. The WS-10 series will have to suffice for early models.
However, the issue with Chinese engines is not with design.. but with materials.
Think of the SR-71 but made with aluminium.. it would melt away.

We have good materials so far, but what we need to enlarge our engine production is to raise more skilled workers in the assembly lines.

It is very hard to produce those skilled workers with high performance, when you got 0.1mm of difference during the installation, the engine might lose 10% of the thrust, or it can get even worse.

 

[SQ8]

We have good materials so far, but what we need to enlarge our engine production is to raise more skilled workers in the assembly lines.

It is very hard to produce those skilled workers with high performance, when you got 0.1mm of difference during the installation, the engine might lose 10% of the thrust, or it can get even worse.

Depends on the definition of good for the application.
For eg.. in the Wopen-7 and 13 the materials requirements were not that high.. .

But for something like the WS-10 or WS-15.. the precision requirements for both composition and dimensions are much higher.
And China lacks one very very important thing in its work ethos.. in a big way.. Which is quality control.

Where I used to work.. there were two radio systems in design process.. each of them having a chipset(so to speak)..
The one from Turkey.. had say.. 1 faulty in every 50...
The one from China.. 1 in every 5.
It was not until someone went to the substrate facility in China that the ratio improved to 1 in 30..

Yes there is a big issue of skilled workers.. but there is also an issue of instilling those ethos..
However, in the newer generation of Chinese these skills may be coming up faster..

 

[nitetrogen70]

@Oscar so how long do you think this engine will be 100% ready ?

 

[SQ8]

@Oscar so how long do you think this engine will be 100% ready ?

5-8 years.

 

[bigzgvr4]

ALmost all the american Electronic consumer products are made in China and We here never have any problem with them i guess quality control for Foreign consumer electronics or any product is Far better then those of the ones that are used in inland China i guess

 

[j20blackdragon]

The J-20 will lose out on stealth if
1. Does extreme maneuvers that cause the canards to deflect enough to create e spike in RCS.

But when the F-22's stabilators deflect, there's no spike in RCS right?

 

[bigzgvr4]

Also in a jet engine You have to have the blades balanced after it is assembled just like a turbo of a car you have to have its blades balanced when the hot side and the cold side are assembled, alot of people here buy chinesse made turbo and have them balanced and then they work just like a Top Brand like Turbonetics/Percision/Mitsubishi/ etc. and they balance it on computerized machines that run them at highest rpms Possible becasue jet engine is like a turbo cold air goes in fuel is ignited and hot air Comes out it the Blades are not Balanced it will have premature detonation and knock depending on the side which is most heavy or light when they are rotating and also proper Fuel and air Mixture management

 

[gambit]

But when the F-22's stabilators deflect, there's no spike in RCS right?

Canards, being their locations and smaller size, have a higher deflection angle than stabilators. The deflection angle you posted is on the ground where there are no air data inputs, resulting in the flight control computer (FLCC) thinking it needs a higher deflection to execute a maneuver. The combination contains: air data, gyrosopes, accelerometers, command, and surface displacement feedback. All these factors governs the deflection angle of any flight control surface, including canards.

 

[bigzgvr4]

balancing a fighter jet engine in active service in Canada their are more then 3 part videos please watch all of it for the jet engine enthusiasts and you will know the inner working for the compressor side of things

 

[ChineseTiger1986]

Depends on the definition of good for the application.
For eg.. in the Wopen-7 and 13 the materials requirements were not that high.. .

But for something like the WS-10 or WS-15.. the precision requirements for both composition and dimensions are much higher.
And China lacks one very very important thing in its work ethos.. in a big way.. Which is quality control.

Where I used to work.. there were two radio systems in design process.. each of them having a chipset(so to speak)..
The one from Turkey.. had say.. 1 faulty in every 50...
The one from China.. 1 in every 5.
It was not until someone went to the substrate facility in China that the ratio improved to 1 in 30..

Yes there is a big issue of skilled workers.. but there is also an issue of instilling those ethos..
However, in the newer generation of Chinese these skills may be coming up faster..

President Hu Jintao has awarded the experts for making the groundbreaking composite meterials for our jet engine in early 2011.

Where I used to work.. there were two radio systems in design process.. each of them having a chipset(so to speak)..
The one from Turkey.. had say.. 1 faulty in every 50...
The one from China.. 1 in every 5.
It was not until someone went to the substrate facility in China that the ratio improved to 1 in 30..

Yes there is a big issue of skilled workers.. but there is also an issue of instilling those ethos..
However, in the newer generation of Chinese these skills may be coming up faster..

lol, does this mean that Turkey can make the better jet engine?

If the WS-10 engine is unreliable and faulty, do you think we Chinese are retarded for making more than J-11B aircrafts with WS-10A?

 

[Sergi]

President Hu Jintao has awarded the experts for making the groundbreaking composite meterials for our jet engine in early 2011.

lol, does this mean that Turkey can make the better jet engine?

If the WS-10 engine is unreliably and faulty, do you think we Chinese are retarded for making more than J-11B aircrafts with WS-10A?

Calm down tiger. He isn't saying Turkey can make better jets than you it was just a example.


If WS-10 is mature as you said then why China is importing Russian engines ???
( No offence intended and expecting a simple and logical answer )

 

[bigzgvr4]

See after 10 posts or less Troll ing Begins
again