Keeping the blogosphere posted on the goings on of the world of submarines since late 2004... and mocking and belittling general foolishness wherever it may be found. Idaho's first and foremost submarine blog. (If you don't like something on this blog, please E-mail me; don't call me at home.)

Wednesday, May 02, 2007

Papa Foxtrot Mike

[Intel Source: SubSim] The Navy files patents the same as any other organization; earlier this month, they were issued one (#7,206,257) that should be of great interest to submariners. (If the link above doesn't work for you, there's a copy of the patent here, or click here and search for the patent number: 7206257.) Here's what the invention is said to do:

A method of generating a predetermined field of cavitation around a remote target in an underwater environment, said method comprising the steps of: identifying a remote target in an unconfined underwater location; generating at least two acoustic beams from an underwater acoustic source; and controlling said at least two generated acoustic beams to intersect with each other at said identified remote target location and whereby a cavitation field is created at said intersection...
...it is an object of this invention to provide a self-defense weapon utilizing acoustic remote cavitation.
Another object of this invention is to provide an underwater self-defense weapon mounted on an underwater support vessel.
Still another object of this invention is to provide an acoustic remote cavitation weapon by generating an array of intersecting acoustic beams.
A still further object of the invention is to provide an acoustic remote cavitation weapon deriving power from an underwater support vessel and generating an array of intersecting acoustic beams at a long range.
Yet another object of this invention is to provide an acoustic remote cavitation self-defense weapon for generating a destructive cavitation in free water space.
In accordance with one aspect of this invention, there is provided a method of generating a predetermined field of cavitation around a remote target in an underwater environment. The method includes the steps of identifying a remote target location, generating at least two acoustic beams, each at a peak power output, from an underwater energy source, and controlling the generated acoustic beams to intersect with each other at the remote target location and thereby create a destructive cavitation field at the intersection of the beams.
The patent comes with drawings, too; here's one of them:

Looks pretty sweet. There's more on this over at Wired, where the commenters point out that there will be lots of opposition to deploying this new tool because of perceived danger to marine mammals. I'm guessing that we'll have to wait for Republicans to get back in charge of Congress before we get to deploy this system.

16 Comments:

Anonymous Anonymous said...

That is effin AWESOME!

688s/Virginia's probably don't enough electrical capacity available to power the death ray version of this device, but a low power backfit version could probably be used to blind torpedos.

5/02/2007 10:23 AM

 
Anonymous Anonymous said...

http://209.85.165.104/search?q=cache:R3MJRBHq-uQJ:www.dawnbreaker.com/virtual2004/briefings/MaterialsSystems.pdf+WSQ-11&hl=en&ct=clnk&cd=1&gl=us&client=firefox-a

5/02/2007 2:29 PM

 
Anonymous Anonymous said...

there is a submarine version too

5/02/2007 2:32 PM

 
Anonymous Anonymous said...

From our in-house PhD in acoustics:
"Basically you cannot break the laws of physics (except in Star Wars movies). The concept works in a limited way and at limited distances but there is a maximum amount of energy that can be generated at the source and there is attenuation with distance. Underwater, torpedoes are hard to beat for delivering lots of energy efficiently and effectively to a distant target."

5/02/2007 3:41 PM

 
Anonymous Anonymous said...

papa foxtrot bravo sierra...
first of all the acoustics are too complex for even the biggest eggheads, second of all who cares if I can blow up a torpedo 1 km away, Its still gonna Foxtrot me up.

Submarines once....

5/02/2007 7:34 PM

 
Blogger oxillini said...

That can never work. I don't see any mention of mag amps or teeny tiny alignment pot screws in there. Simply un-Navy I say.

5/02/2007 11:41 PM

 
Anonymous bullnav said...

Mag amps....
Bwahahahahahahahahahaha!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

5/03/2007 5:23 AM

 
Anonymous Anonymous said...

Submerged generators of "two acoustic beams" would generate havoc (ignored by US subs, of course) but distracting to our enemies.

The waters around Taiwan make a convenient testing venue. Acoustic frequency and vector would, of course, vary. Singapore Pete

5/03/2007 11:15 AM

 
Blogger David said...

It seems that based upon energy requirements and range (100m - 1km) this is intended as either a defensive device (counter torpedo) or decoy.

5/04/2007 3:44 PM

 
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