Y-20 heavy transport aircraft News & Discussions

bahadur999 · Dec 12, 2019

Y-20U at XAC.

aziqbal · Dec 13, 2019

I would like to know the number ?

bahadur999 · Dec 13, 2019

aziqbal said:
I would like to know the number ?

Hopefully we will see one in active service soon.

Deino · Dec 13, 2019

bahadur999 said:
Y-20U at XAC.
View attachment 593670

But wasn't this already posted some time ago by @LKJ86 ?

Figaro · Dec 13, 2019

Why does the Y-20 not have the WS-20 yet? Strange since a couple years ago I heard the WS-20 had the smoothest development out of any Taihang engine. Until they get the WS-20, the Y-20 cannot realize its ultimate potential.

Beast · Dec 13, 2019

Figaro said:
Why does the Y-20 not have the WS-20 yet? Strange since a couple years ago I heard the WS-20 had the smoothest development out of any Taihang engine. Until they get the WS-20, the Y-20 cannot realize its ultimate potential.

Y-20 has already realise its potential.. The current engine fitted is not the ordinary D30KP2 engine but Chinese WS-18 clone but upgraded engine with more superior fan blade and higher thrust. The current Y-20 configuration is capable of hauling PLA most heavier MBT of Type99A. Higher payload is not necessary at the moment.

The reason for Y-20 to retain WS-18 are simply logistic point of view and cheaper maintenance since WS-18 engine share the same place of IL-76, H-6K and Y-20.

WS-20 will only introduced once military C919 convert to AWACS , MPA or AEW since the engine for it cannot be imported from US.

aziqbal · Dec 14, 2019

Beast said:
Y-20 has already realise its potential.. The current engine fitted is not the ordinary D30KP2 engine but Chinese WS-18 clone but upgraded engine with more superior fan blade and higher thrust. The current Y-20 configuration is capable of hauling PLA most heavier MBT of Type99A. Higher payload is not necessary at the moment.

The reason for Y-20 to retain WS-18 are simply logistic point of view and cheaper maintenance since WS-18 engine share the same place of IL-76, H-6K and Y-20.

WS-20 will only introduced once military C919 convert to AWACS , MPA or AEW since the engine for it cannot be imported from US.

then why did China import so many D30KP2, for H6? Surely not

Beast · Dec 14, 2019

aziqbal said:
then why did China import so many D30KP2, for H6? Surely not

Are you sure China imported many DK30KP2? Where is your proof of many(300 above)?

From what I know China only imported 120 DK30KP2 in the 2012 and no more subsequently. We have almost a hundred new H-6K, H-6N in service plus almost a dozen of Y-20 and not to mention many KJ-2000 and IL-76 in service. A simple maths calculation show it need at least 300-400 engines for now and future.

http://errymath.blogspot.com/2015/01/ws-18-new-type-of-aircraft-engine.html#.XfQvsOgzbIU

Photo show the successfully testing of WS-18 engine in the late 2015 and since WS-18 is a clone of DK30KP2 but with more superior metallurgy. It shouldnt take too long for it to cert and enter production service. Notice in 2017- until now, production of Y-20 , H-6K and H-6N have increase significantly, more or less how the engines supply is not a bottleneck as production ramp up to meet the demand.

Figaro · Dec 14, 2019

Beast said:
Y-20 has already realise its potential.. The current engine fitted is not the ordinary D30KP2 engine but Chinese WS-18 clone but upgraded engine with more superior fan blade and higher thrust. The current Y-20 configuration is capable of hauling PLA most heavier MBT of Type99A. Higher payload is not necessary at the moment.

The reason for Y-20 to retain WS-18 are simply logistic point of view and cheaper maintenance since WS-18 engine share the same place of IL-76, H-6K and Y-20.

WS-20 will only introduced once military C919 convert to AWACS , MPA or AEW since the engine for it cannot be imported from US.

The Y-20 needs high bypass turbofan like WS-20

Beast · Dec 14, 2019

Figaro said:
The Y-20 needs high bypass turbofan like WS-20

Not in expense of cost and maintenance. WS-18 still consume less fuel compare to turbojet and higher thrust to fulfill current PLAAF needs.

WS-20 maybe install on enlarges version of Y-20 civilian to haul bigger/heavy cargo.

But that might be 5-7 years later date before you see WS-20 install on it.

https://www.defenseworld.net/news/1...Based_on_Y_20_Military_Transport#.XfRz1ugzbIU