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Re: [PSUBS-MAILIST] Preliminary calculations, please check me



Hi, guys -WWII fleet boats had more hull under than over. The only vessels with more over are surface ships, whether monohull or catamaran.
 
http://www.commercemarketplace.com/home/CollectAir/submarine.html
 
Notice the water line for the USS Barb at the link above.  Most of the "bulk" above the water line is simply a shell designed for seakeeping and to provide protection for plumbing, valves, etc.
 
Rick
Vancouver
----- Original Message -----
Sent: Saturday, October 29, 2005 5:50 PM
Subject: Re: [PSUBS-MAILIST] Preliminary calculations, please check me

Yes, using 63 lb/cf of seawater gives about 16cf needed to weigh 1000lb.

I think a WWII style boat which was more on the surface than submerged would have 30% or more reserve buoyancy.  Like Myles says.



On 10/29/05, Myles Hall <myles.h@sasktel.net> wrote:
Joe,
 
   My design calls for about 45%.  I want to get that thing out of the water when surface running.  Also, I figure a guy needs all the bouyancy he can get when launching the thing so that you don't need 6' of water.  I'm going for the "better to have too much than not enough" concept.  Hopefully I'm not overlooking something.
 
Myles.