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



The only other thing that you might want to take under consideration is, that with the additional capacity for surface bouyancy you will have more mass when you are underwater.  That may take more power to move you through the water.
 
Brian
----- Original Message -----
From: Myles Hall
Sent: Saturday, October 29, 2005 15:27
Subject: Re: [PSUBS-MAILIST] Preliminary calculations, please check me

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.
----- Original Message -----
Sent: Saturday, October 29, 2005 5:15 PM
Subject: [PSUBS-MAILIST] Preliminary calculations, please check me


 

Someone check me here.

 

According to the Busby book, a MBT system as a rule of thumb should be approximately 10% of displacement at dive trim.

 

If that is the case, then for each 10k of displacement should be roughly 125 gallons of seawater. That in turn converts to 16.71 cubic feet unless I am mistaken this doesn?t feel right?

 

If that is the case, these are very encouraging numbers!

 

Joe


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