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  • paralay
    Rank 5 Registered User
    • Aug 2005
    • 1418

    #21
    The maximum target speed is 2500 km / h, which means that the speed of the P-73 is above this value.

    Restrictions on the launch conditions of guided missiles (Su-27, points 5,6,7,8)
    H = 15000 - 18000 m на V= 650 km/h (до M = 2,35) H < 15000 m на V= 300 - 1100 km/h (до M = 2,2)

    http://aviakos.ucoz.ru/dok/pdf/bp_avia/su-27.pdf
    Last edited by paralay; 8th February 2019, 03:30.

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    • stealthflanker
      Rank 5 Registered User
      • Sep 2015
      • 1027

      #22
      The real question is probably. "Can MiG-31 do a sustained cruise in supersonic speed with R-73 and R-77 ?"

      AFAIK the old Bisnovat R-40 was designed with titanium airframe as it was meant to be carried externally and to withstand sustained thermal load when the carrier aircraft (MiG-31 or MiG-25) going supersonic and cruising at that condition. Missiles can go to mach 4 yes. But it's for few to tens of seconds after launch. While the carrier aircraft may go supersonic and maintain it for minutes and might be in different altitude. This condition will weaken the missile airframe and roughly shortening its lifespan.

      -----
      Nonetheless Before calling a shot on MiG's because it using "non mach-3 carrie-able" AAM one have to consider that the threat requiring sustained high mach numbers no longer exist. The highest is probably Mach 1.5-2 and that for high altitude mission, maybe launching Kinzhal or that Big Kontakt ASAT missile. It can go Mach 2.8 or even 3, yes. But it's not just that Merit Russia keeps the MiG.

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      • paralay
        Rank 5 Registered User
        • Aug 2005
        • 1418

        #23
        Flight time of the MiG-31 at supersonic cruising speed M = 2.35 fifteen minutes

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        • TEEJ
          Rank 5 Registered User
          • Oct 2005
          • 2354

          #24
          Russian MiG-31 shot down another Russian MiG-31. Unauthorised launch of R-33.

          https://ukdefencejournal.org.uk/russ...ussian-mig-31/

          https://arstechnica.com/information-...-report-shows/

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          • GromOzekA
            Rank 4 Registered User
            • May 2018
            • 42

            #25
            Click image for larger version

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            R-33 (left) and R-37 (right)

            Somebody had posted this video here, but in another thread: https://www.youtube.com/watch?v=VARVdpXXh70&t=1413s

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