Subject:
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Re: Bridget
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Newsgroups:
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lugnet.build.mecha
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Date:
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Mon, 14 Aug 2000 14:22:32 GMT
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Viewed:
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1344 times
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In lugnet.build.mecha, James Powell writes:
> In lugnet.build.mecha, Mark Sandlin writes:
> > I suppose, but wouldn't that be terribly inefficient?
> >
> > It would likely be simpler and cheaper to use a different type of weapon.
> > And in the military, your weapon was made by the lowest bidder. ;^)
>
>
> Hmm...I know I have read a article on the whole idea of supercavitation (in
> relation to the USSR Rocket Torpedos) recently on the web...no idea where it • is
> though.
"Recent domestic and Ukrainian hydrodynamic research has explored the physics
of a phenomenon labeled supercavitation. Proper design can minimize the drag on
a submerged projectile, yielding "supercavitation drag reduction," which allows
the projectile to attain speeds in excess of 1,000 m/sec, rendering deep
penetration of the sea floor possible. This phenomenon involves the formation
of a vapor cavity at the point of minimum pressure on the submerged body. This
vapor cavity can envelop the projectile and extend quite a distance downstream
of the minimum pressure point. Drag can be reduced on the projectile because
skin friction over the projectile surface within the vapor cavity is negligible
due to the reduced density and viscosity of the vapor."
-David M. Condron, Stanley Associates, Inc.
Neat idea, but as Mark said, pretty silly to apply this to bullets... just use
a blue-green laser and you're far better off. The beam can act as a target
locator & rangefinder at low power, and then kick up to high power when the
target is tagged.
--Karim
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Message is in Reply To:
 | | Re: Bridget
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| (...) Hmm...I know I have read a article on the whole idea of supercavitation (in relation to the USSR Rocket Torpedos) recently on the web...no idea where it is though. James (24 years ago, 14-Aug-00, to lugnet.build.mecha)
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