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    Su-35S vs USAF 4th/5th gen Fighters

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    Militarov

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    Re: Su-35S vs USAF 4th/5th gen Fighters

    Post  Militarov on Mon Jan 16, 2017 4:22 am

    hoom wrote:Thing I can never understand is how it is possible to claim RCS in 0.0x or 0.00x m^2 range when you have something like this up the front

    AN/APG-81 is 0.7m diameter = 0.38m^2 area
    It's sloped back to deflect reflections somewhat but its nowhere near the wing sweep & all those 90deg angles on the modules must make for some excellent reflections so it seems impossible for RCS to be under say 0.3m^2 Suspect

    RAM coatings and materials come into whole story too.

    hoom

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    Re: Su-35S vs USAF 4th/5th gen Fighters

    Post  hoom on Mon Jan 16, 2017 5:15 am

    RAM coatings and materials come into whole story too.
    RAM can't cover that antenna area without crippling the radar.
    I've heard of frequency specific radome material but if that is too restrictive it must also restrict the frequency range for LPI modes & it doesn't prevent the other guys using the same frequency range -> back to something like 0.3m^2.

    Azi

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    I personally doubt F-35 can maintain a 0.001 m2 RCS

    Post  Azi on Mon Jan 16, 2017 8:35 am

    hoom wrote:
    RAM coatings and materials come into whole story too.
    RAM can't cover that antenna area without crippling the radar.
    I've heard of frequency specific radome material but if that is too restrictive it must also restrict the frequency range for LPI modes & it doesn't prevent the other guys using the same frequency range -> back to something like 0.3m^2.
    It's all about geometry!

    The correct angle, the right shape of modules in the radar...

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    Re: Su-35S vs USAF 4th/5th gen Fighters

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