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RE: [PSUBS-MAILIST] Chinese home-built sub makes the water



Maybe they are a higher grade drum.  or maybe he has reinforcing rings that we don't know about.  If most of that space is just for equipment then his ribs could be larger.  
-----Original Message-----
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org]On Behalf Of Gregory Cotton
Sent: Sunday, September 06, 2009 4:31 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Chinese home-built sub makes the water

If I was going to build one of these ( and I did design on like it when I was about 14) I'd go ambient, which may explain the 30 ft limit he puts on it, no decompression times!

Greg

On Sun, Sep 6, 2009 at 4:29 PM, Alan James <alanjames@xtra.co.nz> wrote:
Hi Brent,
Just did some homework on "Chinese death trap".
The article says its 1.6 tonnes & calculating out the displacement of 7 drums thats about right.
Wich means the drums must be his pressure hull & not an outer ballast tank.
He says he can go to 30ft, but a thick 1.2mm drum has a crush depth of 16ft. If he reinforced all
the drums half way that would only give him 33ft. Might be wrong, he might be an ardent follower of psubs.org.
& have built it to ABS standards.
Alan.
 
----- Original Message -----
Sent: Monday, September 07, 2009 7:21 AM
Subject: Re: [PSUBS-MAILIST] Chinese home-built sub makes the water

Looks to me, like Xiangli has about the same hatch land height as my original K boat.  I've have to ship him some amas. ;}'
 
 

          
    " The truth may set you free but first its going to piss you off. "           ~ attributed to Gloria Steinem
 
 
Getter Dun,
Szybowski
 
 
  Save the Nuts, Collect the whole set

Sent: Saturday, September 05, 2009 6:16 AM
Subject: [PSUBS-MAILIST] Chinese death trap

Here is another image of the Chinese death trap sub.  Looks like he is working on his TV periscope, the mast seems to be made of a piece of clear acrylic pipe.  Note the red line on the front of the sail, I am guessing that this is his trim line.  As I stated earlier, he is operating with very little freeboard.

 

http://www.uniquedaily.com/amateur-inventors-homemade-submarine/

 

R/Jay

 

 

Resepectfully,

Jay K. Jeffries

Andros Is., Bahamas

 

Save the whales, collect the whole set.