Re: [PSUBS-MAILIST] pressure hull sizing

[MerlinSub@t-online.de]

Hi Frank, the 2,4 ts sub is the Eurosub, 3 persons narrow and 2 persons spacious. 
And we managed allready a dive with 4 person in it - three mans and a 8 years old girl. 

Yesterday it search and find a dead diver in the lake. 
It release the emergency bouy and switch on all lamps to mark the spot and than a
other diver salvage the body. 

http://www.nonstopnews.de/galerie/11061

The 98" by 52 ft hull is good for a crew of four and about 40 rescued submariner or so.  

vbr Carsten 


<ShellyDalg@aol.com> schrieb:
>  
> In a message dated 5/12/2010 10:53:15 A.M. Pacific Daylight Time,  
> MerlinSub@t-online.de writes:
> 
> 22" is  0,5 ts with 3m (8.6 feet)
> 39" is 1,6ts with 3,4m (11,1 ft)
> 47" is 2,4 ts  with 4,1 (13,5ft)and 
> 98" is 60ts with 16m (52,5ft)
> (length  overall)
> 
> vbr carsten
> 
> 
> 
> 
> Hi Carsten. Just looking at the bare numbers, the 47" hull at 13.5 feet  
> long looks really good for a boat that can be hauled around and launched 
> easily  from a trailer. At 2.4 tons it's a great size to weight combination.
> I've been inside a few psubs and the difference between a 36 inch and 48  
> inch is huge where comfort is concerned.
> My saucer shaped hull is 84 inch round and is very roomy for two  persons, 
> but the shape doesn't lend itself to good flow characteristics. It  looks a 
> lot like a Big Mac hamburger without the ballast tanks and  fairings.
> During model testing it was pretty unstable as a bare hull. Adding the  
> ballast tanks improved the flow, and with the addition of the dive plane wings  
> and rear fin, it straightened right out. Now the test will be to see how 
> well it  performs as a full-size/full-weight craft. At slow speeds it should 
> work fine  but my curiosity will prompt me to get a big boat and tow this 
> thing really fast  to see just how the real thing performs in relation to the 
> scale model testing.  I would like to tow it at 15 knots or more and see if I 
> have eliminated the  "wobble" it produced during the model testing. Scary 
> but fun !
> Frank D.
>  
> 




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