Chinese Engine Development


Xsizor

Captain
Registered Member
I dont think ws-20 has that much thrust. 145 kn is more like it.
Wrong.

Unless 145 kN is the dry thrust... In which case I think you are elevating China to be the preeminent power in Turbofan technology!

Chinese engines already (WS-10 series) have the wet thrust of 135-145 kN. But their dry thrust, like most fourth generation heavy engines, score below 100 kN(85-90 kN). WS-15 will have to have its dry thrust above 100 kN to enable supercruise ( considering that J-20 is categorized as a heavy fighter). This also mean that the wet thrust could be in the 165 kN range.

If anything, the maximum thrust capable is going to be traded off for better engine reliability and MTBO. WS-15 will be in the F119 league.
 
D

Deleted member 15949

Guest
Wrong.

Unless 145 kN is the dry thrust... In which case I think you are elevating China to be the preeminent power in Turbofan technology!

Chinese engines already (WS-10 series) have the wet thrust of 135-145 kN. But their dry thrust, like most fourth generation heavy engines, score below 100 kN(85-90 kN). WS-15 will have to have its dry thrust above 100 kN to enable supercruise ( considering that J-20 is categorized as a heavy fighter). This also mean that the wet thrust could be in the 165 kN range.

If anything, the maximum thrust capable is going to be traded off for better engine reliability and MTBO. WS-15 will be in the F119 league.
How does it compare with the F119 and F135?
 

Xsizor

Captain
Registered Member
How does it compare with the F119 and F135?
It should compare itself well with F119. There is no other way. The Chinese might as well shut the program down and play mahjong if they can't create it because they already are doing well relatively with WS-10Bs.

The whole point of WS-15 is to enable J-20 to supercruise and maneuver well. It needs F119 and beyond thrusts to do that.

I don't think F135 is an evolutionary leap from F119. The F135 is a "fork" of F119 built especially for the F35 application. The F135 is not a supercruise enabler.An evolutionary leap will happen in the US with the incorporation of CMC and VC technologies among others.

Edit - The US have both these technologies. It's just a matter of execution and Dollaass
 
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D

Deleted member 15949

Guest
It should compare itself well with F119. There is no other way. The Chinese might as well shut the program down and play mahjong if they can't create it because they already are doing well relatively with WS-10Bs.

The whole point of WS-15 is to enable J-20 to supercruise and maneuver well. It needs F119 and beyond thrusts to do that.

I don't think F135 is an evolutionary leap from F119. The F135 is a "fork" of F119 built especially for the F35 application. The F135 is not a supercruise enabler.An evolutionary leap will happen in the US with the incorporation of CMC and VC technologies among others.

Edit - The US have both these technologies. It's just a matter of execution and Dollaass
Just curious, how are the F135 and F119 different?
 

t2contra

Major
But for which airline? Do you think any Chinese airline would buy an uneconomic aircraft if they can get more economical ones in the West? ... but this is no longer a PLAAF large aircraft and transport issue.

Could be for the C919, but it's just a stop-gap engine before the CJ-1000 becomes operational. High bypass design is a logical choice for the contingency of loss of supply of engines for the civilian airliner.
 

Richard Santos

Senior Member
Registered Member
Just curious, how are the F135 and F119 different?

F-135 is an F-119 with a much bigger fan to achieve a substantially higher thrust and higher subsonic fuel efficiency through a much higher bypass ratio, plus provision to drive an additional external fan via a clutch through the front of the engine.
 
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