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Why not J-58 clones

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  • logical1
    Rank 5 Registered User
    • Dec 2012
    • 160

    Why not J-58 clones

    The SR-71 had the fabulous J-58. It main feature was the bypass tubes to feed the afterburner.

    Does anyone know why none of the engine manuf never carried on with that technology?
  • LMFS
    Rank 4 Registered User
    • Feb 2018
    • 519

    #2
    In recent times GE had the YF120 developed for the ATF, it was used as a base for the RTA-1 which was meant to work like a ramjet at high speeds and reach M = 4.1.

    Interestingly this is roughly the same speed touted for the speculative MiG-41, so it is quite possible that such concepts are being entertained in Russia too.

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    • mig-31bm
      Rank 5 Registered User
      • Oct 2013
      • 2140

      #3
      Originally posted by logical1 View Post
      The SR-71 had the fabulous J-58. It main feature was the bypass tubes to feed the afterburner.

      Does anyone know why none of the engine manuf never carried on with that technology?
      Probably because there are no need at the moment

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      • Oxcart
        Rank 5 Registered User
        • Nov 2007
        • 2090

        #4
        Because they went for stealth, not speed?
        Give a man a fish and eat for a day. Give a man a fishing rod and he'll eat for a lifetime. Give a man religion and he'll die praying for a fish!

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