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  1. Ultima Thule

    SAC FC-31 Stealth Fighter: News & Discussions

    you don't have knowlege of basic of physics,if you have more surface area at the front of the aircraft then bounce back more signal to the radar, your all posts are junk and baseless and read carefully Mr gambit post that more logical and understandable than your love your Chinese physic and...
  2. Ultima Thule

    SAC FC-31 Stealth Fighter: News & Discussions

    no fighter plane is perfect J-20 and f-22 have their own pros and cons but i like j-31 more than j-20 because j-20 has canard and canard gives extra RCS with main wing to enemy radar:china:
  3. Ultima Thule

    SAC FC-31 Stealth Fighter: News & Discussions

    you r entirely correct Mr,gambit but these chinese people don't understand
  4. Ultima Thule

    SAC FC-31 Stealth Fighter: News & Discussions

    i guess this plane is better than j-20 because of it not has canard and ventral fin :china:
  5. Ultima Thule

    Russian media:J20's stealth capability is far better than F-35 and pakfa

    every plane has weakness and as well as advantages and remember Russian and us military aviation industry are lot mature than Chinese military aviation industry and as for martian your post is childish but i agree with martian Pak FA to underside and rear and as for ptldM3 Russian aviation...
  6. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    but you intentionally targeted the J-20 weakness, btw no plane is perfect, even f-22 and f-35 have their own weakness
  7. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    To all PDF members we have nothing information about J-20, for e.g. what kind of RAM coating is applied on J-20, what kind of RAS structure J-20 have, we don't have even official specification about J-20 And i asked one question to Mr.gambit, you talked about surface creeping wave,then what...
  8. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    Continue YF-22 AT F competition (YF-22 and YF-23 Together) A-12
  9. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    Continue YF-23 YF-22
  10. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    Continue MBB Lampyridae YF-23
  11. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    Continue Replacement of SR-71 Have blue Tacit Blue MBB Lampyridae
  12. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    M21 and D21 Replacement of SR-71
  13. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    F-108 XF-109 Replacement of U-2
  14. Ultima Thule

    Combat Aircraft Projects & Designs - Index in 2nd post

    Father of stealth Horten Ho-229 Fathers of B-2 YB-35 and YB-49 Mach3 intercepter XF-103
  15. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    but i still not convinced with canard+wing platform, front of the aircraft is the most important part of an aircraft, canard+wing will give slightly higher surface area to enemy radar, and as for side there r two ventral fins which may increases radar reflection to side, i think J-21 more mature...
  16. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    But i think that J-21 is better than J20, it more balanced design than J20
  17. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    And as for APA physical optics experiment is wrong because they're not know what material used in the construction of J20, what kind of RAM coating is applied to the J-20,canard has a bad effects on front RCS for sure,no matter how sophisticated canard r.:lol:
  18. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    Mr martian i have say that your assumption and arguments r baseless, how can u compare PAK FA's IR ST has bigger radar cross section than huge canard surface than J-20, please elaborate, but i agree that PAK FA has more flaws than J-20, and BTW as for your information soviet/Russian aircraft...
  19. Ultima Thule

    Chengdu J-20 5th Generation Aircraft News & Discussions

    hi, i am new to the forum and my English is worst (sorry in advanced). i read this thread from page 1, it is an interesting debate between Mr gambit,ptldM3 and martian2, i agree with Mr gambit, ptldM3 and i ask one question to martian2 that is how could APA simulate Physical Optics experiment...
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