WS10 and AL31 side by side

Discussion in 'Military Multimedia' started by badguy2000, Nov 10, 2009.

  1. badguy2000

    badguy2000 Respected Member Senior Member

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    well, some Russian here insists that WS10 be a copy of AL31....

    here is a picture showing WS10 and AL31 side by side.....

    we can have a look and compare them...

    [​IMG]
     
  2.  
  3. badguy2000

    badguy2000 Respected Member Senior Member

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    one closer picture of WS10

    [​IMG]

    one closer picture of AL31F
    [​IMG]
     
  4. badguy2000

    badguy2000 Respected Member Senior Member

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    the fan and its air vane guide

    WS10
    [​IMG]

    AL31F
    [​IMG]
     
  5. badguy2000

    badguy2000 Respected Member Senior Member

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    WS10
    [​IMG]


    Al31
    [​IMG]
     
  6. Quickgun Murugan

    Quickgun Murugan Regular Member

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    Thew only difference I notice is that the inside part is painted green for WS -10.

    Can you please enlighten us, what major differences you spot?
     
  7. Daredevil

    Daredevil On Vacation! Administrator

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    Don't you see, the blades are silver white in WS10 engine while it is dark silver in AL31 engines. I'm sure, based on this, we can say WS10 is not a copy of AL31 :lol:
     
  8. Quickgun Murugan

    Quickgun Murugan Regular Member

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    I concede. WS 10 is indeed a state of art, indigenous, independent fighter engine which is not a copy of AL 31F.
     
  9. badguy2000

    badguy2000 Respected Member Senior Member

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    the fan of WS10 has 15 blades while AL31 has more than 22 blades.
     
  10. qilaotou

    qilaotou Regular Member

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    If you guys can see the images on the wall in the first photo above, it showed differences of the core engines and how the engine structures derived, respectively. The engine core of WS-10A initiated from a civilian GE CFM56 core on which Chinese engineers designed a new core for military jets. That is the major reason why the acceleration rate of WS-10 is inferior to those of AL-31F and F100-GE-100 used for F-16.

    WS-10A shared more similarities of inetrnal structures with F100 than with AL-31F.

    Differences in parameters:
    AL-31F
    Compression 4 fans+9 compr. stages
    Bypass ratio 0.59:1
    Turbine 2-single stage(hi+Lo)

    WS-10A/F100-GE
    Compression 3 fans + 9 compr. stages
    Bypass ratio 0.78:1 (For WS-10A)
    Turbine 3-stages (2 lo+ 1hi)


    Because of the maturity of CFM56 China is developing a high bypass ratio engine for transporter planes. It's going well so far.

    Btw China already developed another high thrust core engine (WS-15) for her 4th G fighters. I hope the wise guys tell us now from which Russian engine it was copied. Hurry!
     
  11. Vladimir79

    Vladimir79 Defence Professionals Defence Professionals

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    I'm not seeing any pictures. It doesn't matter looking side by side anyway. The engine core is what matters and it sure as hell isn't based on CFM56.
     
  12. Vladimir79

    Vladimir79 Defence Professionals Defence Professionals

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    Is that why China signed up with Ukraine to develop their large transport planes? D-18T development is going real well. :sarcastic:

    You couldn't even copy Spey engines properly without the end result a crap WS-9. What makes you think you can skip ten steps and make 15k rated engines? :sarcastic:
     
  13. badguy2000

    badguy2000 Respected Member Senior Member

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    I am afraid that you will become another Gordon Chang....
     
  14. IBRIS

    IBRIS Senior Member Senior Member

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    After going through all these posts and pics....I would have to be an id!ot to not say WS-10 is a bootlegged versions of AL-31.
     
  15. qilaotou

    qilaotou Regular Member

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    Chinese engines are only usable. Their design, quality and durability need to mature in time. Ukraine can provide better know-hows in engine technology. It doesn't matter to have another project geared more to commercial applications.

    Here you go again. You choose to ignore facts and rationality. Talkin sh!t is your prelivege here. Wtf do you think you can claim credibility on WS-10A or WS-15?
     
  16. Quickgun Murugan

    Quickgun Murugan Regular Member

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    Not going into technicalities, you want to prove that WS 10 is a copy from US engine and not Russian engine. At the end of the day, the engine is a copy whether from a Russian or American product.
     
  17. masterofsea

    masterofsea Regular Member

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    Sorry,I can't count.:twizt:
     
  18. qilaotou

    qilaotou Regular Member

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    It's a modified CFM56 core. I am not trying to prove anything but provide info that I know. Let me ask you one question. AL-31F has a modified RD33 engine core. Do you say it's a copy of RD33?
     
  19. Vladimir79

    Vladimir79 Defence Professionals Defence Professionals

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    I think we all know Ukraine isn't going to help you develop a CFM56 cored engine. The only two engines they have experience with in that catagory are D-30 and D-18 and they are both obsolete.

    Because we both know WS-10A is a flop as was WS-9 which is what WS-15 is designed to replace. It doesn't take a genius to make the connection that China's utter failure in a clone of a 13t thrust engine is going to translate to failure skipping ten steps to make a 16 tonne which they have never had access to.
     
  20. qilaotou

    qilaotou Regular Member

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    The core engine for WS-15 was firstly tested in April, 2005, its demonstrater developed successfully and the prototype WS-15 uprunning smoothly so far. Either you are misinformed or you don't want to know the truth. China is undoubtedly much behind Russia specially in engine tech. Nonetheless China has in fact produced WS-9 for JH-7, WS-10A for J-10 and WS-15 for the future fighter. WS-9 and WS-10A are indeed both usable, Mr. Vlad. Without WS-10A China would not have negotiated J-10 orders with PAF. You may keep being arrogant in your posts on China if you enjoy it. But reality is reality, isn't it?
     
  21. Vladimir79

    Vladimir79 Defence Professionals Defence Professionals

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    So post the information already. I would love to see statements from CAC about the development.

    So you think you can beat us to a 17.5 tonne engine when you can't even copy the old engines we sell you?

    The WS-9 is a licensed production of Spey Mk202 --- you didn't develop anything.

    J-10 doesn't fly on WS-10A, it flies on AL-31FM imported engines from Russia. You just ordered 100 more this year. You haven't developed anything.

    A 17+ tonne engine when you can't even build anything yourself... right. :sarcastic:

    Yes, reality is reality and the reality is China hasn't developed a successful turbofan engine yet. Unless Russia is going to allow Al-31FM export to Pakistan, the news has little meaning since China is still ordering Russian engines. The day China says "Piss off Russia, we will not be ordering your engines" is the day I will believe China is confident they finally have a replacement. That day has not arrived since China will be recieving 100 engines over the next several years.
     

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