Y-20 heavy transport aircraft News & Discussions

[Khan vilatey]

WS-20 and CJ-1000A are damn the same, high-bypass, same thrust. Military transport aircraft and civilian need the same damn engine.
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Boeing 757
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CJ-1000A
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military technology and Engines have harder components like higher heat and cold tolerance etc. hence more expensive

kv

 

[vi-va]

military technology and Engines have harder components like higher heat and cold tolerance etc. hence more expensive

kv

not true on engine. civilian aircraft engine stability, readiness, durability, safety, environmental suitability requirement is higher actually.
You can lose 1 or 2 aircraft in military annually, you can still run your airforce.
If you lose 1 or 2 aircraft like boeing 737 MAX annually due to design defect, your business is cold dead for sure. No one can save your business, not US, or retarded Trump.

 

[Figaro]

WS-20 and CJ-1000A are damn the same, high-bypass, same thrust. Military transport aircraft and civilian need the same damn engine.
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Boeing 757
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CJ-1000A
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CJ-1000A still has a long way to go ... currently it is only in demonstator/protoype stage. For immediate mass production WS-20 is needed. By the time the CJ-1000A is ready for commercial use, there will likely be a WS-20 variant whose reliability is already on par. And no the WS-20 is not the same as the CJ-1000A. Otherwise why would the latter be so behind in testing. Just because they are both high bypass ratio engines does not mean they are the same. IIRC, the WS-20 has a thrust of over 15 tonnes, which is higher than that of the CJ-1000A.

 

[vi-va]

CJ-1000A still has a long way to go ... currently it is only in demonstator/protoype stage. For immediate mass production WS-20 is needed. By the time the CJ-1000A is ready for commercial use, there will likely be a WS-20 variant whose reliability is already on par. And no the WS-20 is not the same as the CJ-1000A. Otherwise why would the latter be so behind in testing. Just because they are both high bypass ratio engines does not mean they are the same. IIRC, the WS-20 has a thrust of over 15 tonnes, which is higher than that of the CJ-1000A.

ws-20 may have been merged into cj-1000a already. cj-1000a use better technology.
It's silly for China to keep 2 engine in the exact same category. China need ws-20 and cj-1000a because we need to make sure at least the more conservative ws-20 will be usable before deadline.
As long as cj-1000a goes smoothly, ws-20 is no more needed.两条腿走路
We will see, I may be wrong.

 

[Figaro]

ws-20 may have been merged into cj-1000a already. cj-1000a use better technology.
It's silly for China to keep 2 engine in the exact same category. China need ws-20 and cj-1000a because we need to make sure at least the more conservative ws-20 will be usable before deadline.
As long as cj-1000a goes smoothly, ws-20 is no more needed.两条腿走路
We will see, I may be wrong.

I can assure you this is not true. They are both high bypass ratio engines but that is about it. One is almost to mass production while the other one is still in the demonstrator stage. Sure CJ-1000A technology is more advanced as it was developed much later ... but that also means it will come online much later. Meanwhile, China needs a high bypass ratio engine immediately to boost the Y-20 performance capability. As I said earlier, once the CJ-1000A is ready to be incorporated into the C919, the WS-20 will likely have a considerably improved variant with very good reliability by then. I am not sure why you are under the assumption both the WS-20 and the CJ-1000A have the same design parameters.

 

[Beast]

ws-20 may have been merged into cj-1000a already. cj-1000a use better technology.
It's silly for China to keep 2 engine in the exact same category. China need ws-20 and cj-1000a because we need to make sure at least the more conservative ws-20 will be usable before deadline.
As long as cj-1000a goes smoothly, ws-20 is no more needed.两条腿走路
We will see, I may be wrong.

China has learn the hard lesson of making engine only if a targeted plane is available which is a mistake. They now introduced a new engine even there is no plane available for it to keep the manufacturing of aero engine mature and updated. For example US, many aero engine with no final target will eventually found a plane suitable for it. Or a new engine will eventually create a new aero project. That is why US aero engine are very matured due to many decades of experience and sharping.

 

[Deino]

Probably still some sort of what-if - especially with the WS-20 high-bypass turbofans as depicted - this illustration shows a PLAAF Y-20U refuelling two J-20A fighters.

(Image via by78/SDF)

 

[vi-va]

Probably still some sort of what-if - especially with the WS-20 high-bypass turbofans as depicted - this illustration shows a PLAAF Y-20U refuelling two J-20A fighters.

(Image via by78/SDF)

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[samsara]

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Cool scene of the legendary Kunpeng feeding three Mighty Dragons at once!

Look forward more scenes like this in future

 

[Figaro]

Probably still some sort of what-if - especially with the WS-20 high-bypass turbofans as depicted - this illustration shows a PLAAF Y-20U refuelling two J-20A fighters.

(Image via by78/SDF)

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The Y-20 looks much nicer with those large high bypass WS-20s than the current D-30KP2s ... hope we get images soon.

 

[LKJ86]

Via CCTV and @沉默的山羊 from Weibo

 

[nomi007]

1 thing is very clear that Chinese engines are not equivalent to Western Technology.

 

[LKJ86]

1 thing is very clear that Chinese engines are not equivalent to Western Technology.

Do you mean China vs. the whole west?

 

[nomi007]

Do you mean China vs. the whole west?

don't include Russia and Ukraine,

 

[LKJ86]

don't include Russia and Ukraine,

Ok, do you mean China vs. USA+UK+France+Germany+...?