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Re: [PSUBS-MAILIST] Theory Question

James,
 
Somewhere in this thread, someone (you?) wondered if a sub wrapped in a supercavitation bubble might be able to operate at great depth without regard for pressure hull strength considerations.  I suppose in theory that's possible, depending on whether or not one could generate a bubble of greater pressure than would be encountered down deep.  However, I don't think it would be wise to rely on such a system, though; for the obvious reasons of what would happen if it failed at greater than design collapse depth.  Whammo!  Your barracuda becomes a flounder!
 
Pat
----- Original Message -----
From: James
To: personal_submersibles@psubs.org
Sent: Tuesday, June 25, 2002 12:29 PM
Subject: Re: [PSUBS-MAILIST] Theory Question

Oh I definitely understand that, I don't imagine that anyone would want to travel that fast near anything that would come even remotely close to the sub.  I was just wondering if the assumption that supercaviation =  less hull pressure was accurate.
 
James
 
----- Original Message -----
From: Herve
To: personal_submersibles@psubs.org
Sent: Tuesday, June 25, 2002 3:16 PM
Subject: Re: [PSUBS-MAILIST] Theory Question

Hi speed for underwater vehicles is suitable only with enough deep waters and "room" around, there is no way you can drive a mini sub at more than 10 m/h in shallow waters or with reefs and obstacle. it s like driving a car in the fog. Even with 100 Ft visibility once you SEE the obstacle the collision is at 5 seconds, 5 sec to make a sharp turn or stop is actually not easy at all. Add to that the momemtum  of the sub.
Herve