Re: [PSUBS-MAILIST] Stimulation

[MerlinSub@t-online.de (Carsten Standfuß)]

Hi Ken, 

>From my Viewpoint there are two things which are difficult underwater 
for non military subs : 

- fire on board 
- catch a rope, net or similar near the bottom. 

Both problems are not real for a wet sub, fire on board is limited to
the batterie compartment and if the sub catch something -the pilot/diver 
can free it very quickly. 

If I get a fire on board of Sgt.Peppers in say 100 feet I get in serios
trouble, the same if I catch a net with the main stern propeller. 

>From this viewpoint a wet sub limit to say 100 feet and also limit to 
say 20 minutes in this deep is more save than a dry 1 Atm sub. 

The only accident I ever have seen with a wet sub was on TV : 
It was a beautiful designed small wet sub (in the 60ies)with one diver 
in prone position and a dome in the front - the sub himself designed as 
a mixture of a shark and a plane. To sidewings with the thrusters. 
Very quick and with a good manoveriabilty. The sub attacked the area 
of a "white fin reff shark" to test there violents - and the shark 
attack the sub - he eat one of the two propellors.. 

The problems with the wet sub is - they are very limited in 
dive deep, dive time and here in our area the coldness of the water. 

The North Sea here around Heligoland Island is about 130-160 feet
deep with a medium water temperatur at 4 degrees celsius... 
A wet sub under this conditions is maybe save as bycyle on the highway..

On the other side : In the Baltic sea, near the reef in 15-30 feet 
deep with 10-15 degrees celsius in the summer - looks better 
and much more unexpensive with a wet sub than with a 1 Atm sub. 

I think a selfbuild wet sub is possible for about 5.000 Dollars, 
a selfbuild 1 atm dry not under about 15.000 Dollars. 

Carsten 

Subscuba@aol.com schrieb:
> 
> Question for all of us. Which is safer in the event of a problem while
> 
> submerged. A wet sub or a 1 ATM sub????
> 
> Ken Martindale