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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
----- Original Message -----
From: James
To: personal_submersibles@psubs.org
Sent: Tuesday, June 25, 2002 4:25 PM
Subject: Re: [PSUBS-MAILIST] Theory Question

From the small amount of reading that I've done so far, that torpedo is called  Shkval.  Apparently the Shkval II is under development.  "Rumours state a top speed of possibly 450+ mph (720 kph/h) and a vastly improved range, believed by some to be in the region of 60+ miles (100 km)."
 
So if this is the case and supercavitating creates somewhat of an airpocket around the craft, does this in effect reduce the pressure on the hull of the craft also?  If so, wouldn't you be able to manuver a supercavitating sub to the deepest parts of the ocean and not have to worry about the pressure on the hull?
 
James
 
 
 ----- Original Message -----
From: Herve
To: personal_submersibles@psubs.org
Sent: Tuesday, June 25, 2002 1:07 PM
Subject: Re: [PSUBS-MAILIST] Theory Question

Russians designed a rocket torpedo that can go 200 miles / h, the torpeddo runs through the water but in a shield of gazes released by the tip of the torpedo. There is no prop it runs with a rocket engine
Herve