Re: [PSUBS-MAILIST] propane tanks revisited

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

It is possible to build a new sub - and with just the hatch hole open. 

I would say normal building time with both endcaps open = 100% 

Building and outfitting time with one endcap open = about 105-110 %

Building time with both endcaps closed and 
only a small hatch hole open 		  	  = about 130-140 % 

And the ring outside need full welded rings. 

Right or wrong ? 

Short Euronaut update : Last weekend was a TV-team in and on the boat. 
We did a manned "dive" with the decompression chamber down to a pressure
equal to a dive deep of 40 m ( 130 feet)  - with a unmanned test one day
earlier down to 6 bar = 60 m ( 197 feet). Also we tested a 1/10 scale
water resistant test model on the river. We did some other things the
hole day - the movie will be send next week and is about 10 minutes
long. All internal pressure bottles are now in the boat - next step will
be more pressure bottles outside and highr presure test with the
chamber. 

pictures here : http://www.prismnet.com/~moki/subfiles.html

regards Carsten 

Fly Deep schrieb:
> 
> Put the rings out side...........dont cut the hull open.or slide the
> rings through the hatch opening ..the rings can be in sections,,,,they
> dont need to bee a solid ring,,,they can be in 2 or 3 parts.
> 
> Pierre,  Yes I would have to cut the tank to put the reinforcement
> rings in,  but that is no big deal.  Also I would not need it painted
> so
> that might reduce the cost more.  I checked today on the thickness,
> one
> was .233"   another was  .255"
> 
> Brian
> 
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