Thread: Sukhoi T-50 PAK FA

  1. #6421
    Senior Member metberkut's Avatar
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    Quote Originally Posted by Hyde View Post
    The "Photoshop" was an announcement for the picture I posted, before any discussions erupt that it is fake and blablabla...of course it's fake. I am aware that the 51 vert.-tail on the 52 airframe pics are real, I am not doubting that and the comment from above saying that they are fake doesn't make sense.
    Excellent, then we agree.

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    Senior Member memfisa's Avatar
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    Quote Originally Posted by flanker7 View Post
    How the 3D deflection works?

    BTW, are those in the first pic brake deflectors like on the Tornado?
    Maybe they are thrust reversers and air brakes, and when not in use as brakes they are low observable exhaust nozzle
    It would be great to see some system like that on this plane for real

  3. #6423
    Senior Member EdisonTrent's Avatar
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    Quote Originally Posted by memfisa View Post
    Maybe they are thrust reversers and air brakes, and when not in use as brakes they are low observable exhaust nozzle
    It would be great to see some system like that on this plane for real
    I could see the thing sliding upwards to direct thrust down or swinging downwards to direct thrust up. Not sure how to make side to side stuff.

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    Quote Originally Posted by EdisonTrent View Post
    I could see the thing sliding upwards to direct thrust down or swinging downwards to direct thrust up. Not sure how to make side to side stuff.
    They could just do it how it is at the moment. The current engines on the PAKFA and the MKI do not swing side to side, only up and down. They are canted however at i think 15 degrees, which means that you get a sideways component. It's sometimes called 2.5D thrust vectoring (as opposed to true 3D thrust vectoring which is only really on the Mig-29 OVT demonstrator).

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    Quote Originally Posted by xav View Post
    PAk-FA FLAT 3d Nozzle with partial air intake from above to reduce IR signature and maximize stealth
    I doubt that those nozzles are going to reduce IR signature by any significant amount, they are too square for that. The idea behind flat nozzles is to press the plume into one or more planes rather than a conical shape as coming out of a regular nozzle to increase the plume's surface area and increase the rate of cooling. This nozzle doesn't seem to do that. A flat nozzle has to be more rectangular to be able to squeeze the plume into a flat sheet, like these here




    Even this Berkut concept seems to be getting it right

  6. #6426
    Senior Member twinblade's Avatar
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    Quote Originally Posted by artjomh View Post
    There are photos of the engines shifted off enter (one shifter, other straight), so the engine can do 3D vectoring.
    Are you talking about engine toe-in or canting of nozzles ?

  7. #6427
    Senior Member Hyde's Avatar
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    Quote Originally Posted by EdisonTrent View Post
    I could see the thing sliding upwards to direct thrust down or swinging downwards to direct thrust up. Not sure how to make side to side stuff.
    They could tilt, or they could, additionally to the up-down movement, be able to turn around their axis.

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    Senior Member twinblade's Avatar
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    ^^ Love the air flow visible over the wings

  10. #6430
    Senior Member metberkut's Avatar
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    Rita did some *****in' during that flight.

    PS: Don't hotlink z7z

  11. #6431
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    Would be interesting to know the preliminary schedule on implementing 3d nozzles for this beast.
    Should be somewhat close to a production prototype then.

  12. #6432

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    how recent was that photo? i was just about to bump this thread yesterday

    anyone can update me on this? 51, 52, 53 all flying again?

  13. #6433
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    Quote Originally Posted by Pukewarm View Post
    how recent was that photo? i was just about to bump this thread yesterday

    anyone can update me on this? 51, 52, 53 all flying again?
    Posted today, taken yesterday.

    51 is not flying, its tails is now on 52. 52 is flying regulary. 53 did some flights at KnAAPO, got painted (same as 51 and 52) and was delivered to Zhuk 28'th December. Remember, it took pretty long time before 51 or 52 started flying out of Zhuk after they got delivered there, so we will have to wait for T-50-3 for atleast two more months i guess.

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    How many does Russia plan to field? Looks like a nice bird.

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    Quote Originally Posted by Lurking View Post
    How many does Russia plan to field? Looks like a nice bird.
    ~250 so far. 200 in one-seater and 50 in a two-seater config. India plans to field around the same number but in a reverse — they prefer two-seaters.

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