J-20 5th Gen Fighter Thread IV (Closed to posting)

[Air Force Brat]

Can the J-20 supercruise with WS-15 engines ?

Well, I'm rather certain that is the plan, I was surprised when the information on the J-20 suddenly took a hiatus a year or so ago, and this rather extensive revision, (intakes, clipped tails, sensors, and EOTAs) is likely most of what the hang-up has been. Hopefully now we will be privy to more details of the J-20. Hopefully when 2011 departs we will see more of the openess we enjoyed with 2001, and I for one hope more of the details are "out" rather than sequestered, as this program is taking another "step-up", and I believe will be an encouragement to lots of folks, if it is as succesfull as we hope...

 

[Air Force Brat]

This poster of this pic said this thing was tested even long before the maiden flight of J20 in 2010.

Quite likely David, welcome to the forum and feel free to introduce your-self and tell us about yourself in the new members thread. Air Force Brat

 

[chuck731]

While I accept Eng's point in #2660, I want to remark that the reshaped parts might not be forged but printed. In that case the modification is a lot less expensive.

As yet there is no way to print either metal, or nonorthotropic materials with directional properties like composits.

 

[delft]

As yet there is no way to print either metal, or nonorthotropic materials with directional properties like composits.

I was talking about the aircraft structure being adapted to another engine.

 

[chuck731]

I was talking about the aircraft structure being adapted to another engine.

Yeah, but you need new structure in metal or composites.

 

[nkvd]

should allow WS-15 to make do with fewer stages in both its compressors and its turbines, this should result in a shorter engine with significantly reduced part count

Do you have any source for this Chuck?As this is China even a blog would do.Thanks in advance

 

[delft]

Yeah, but you need new structure in metal or composites.

We've seen several photographs of aircraft parts printed from titanium powder. It is likely that such parts are used for the heavily loaded parts in both J-20 and in the currently produced Flankers, J-15 and J-16.

 

[Franklin]

View attachment 9122

Another very nice PS image from the same author

Who are these photoshoppers and where can we find them ?

 

[chuck731]

Do you have any source for this Chuck?As this is China even a blog would do.Thanks in advance

This is not based on specific knowledge of the WS-15. It is my conjecture based on the difference between the American counterparts to the WS-15 (PW F119) and earlier generation WS-10 (PW F100).

 

[chuck731]

We've seen several photographs of aircraft parts printed from titanium powder. It is likely that such parts are used for the heavily loaded parts in both J-20 and in the currently produced Flankers, J-15 and J-16.

I extremely highly doubt parts printed from titanium powder would be anywhere remotely as strong as parts forged from a single titanium piece. It may be possible to sinter forge parts made from powdered titanium (I don't know), but even then the results would be much weaker than single piece solid forging.