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Mach 1 torpedoes

  1. Jan 12, 2005 #1
    I am curious here, does anyone know anything about supercavitating projectiles underwater, I was told by a freind that the USSR developed torpedoes capable of going mach1 by means of this effect. Does this really happen or is it possible in theory? He offered no mathematicl basis for this claim so im curious about this, is it possible or not?
  2. jcsd
  3. Jan 12, 2005 #2


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    I don't believe it, since Mach 1 in water would be 1482 m/s at 20°C or about 2800 knots. This is 60 times the speed of a modern ordinary torpedo (~45 knots).
  4. Jan 12, 2005 #3


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    I have seen discussions on theory about torpedoes that create an airpocket in front of the nose in an effort to reduce the dynamic drag and thus increase speed. I can't tell you if they have actually been made and/or tested though.
  5. Jan 12, 2005 #4


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    Coincidentally, this is being disussed HERE. The torpedo is in service and travels at 100m/s.
  6. Jan 14, 2005 #5


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    100 m/s is much less then the speed of sound in water (152 m/s). So, this torpedo, while 4 times faster then conventional ones is very far from Mach 1.
  7. Jan 14, 2005 #6
    I wonder if you heated the front of this torpedo to create a gas bubble if it would work?
  8. Jan 14, 2005 #7


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