Thanks Christina.
Firstly we are interested in wether Tao's design is ambient (presurized from the inside with compressed air so the
inside air pressure is equal to the outside water pressure at any depth), or 1 atmosphere (normal submarine where
the strength of the hull resists the outside water pressure).
If as we suspect, it is t
he 1 atmosphere; how thick is the metal the barrels are made of & what dimentions are they?
Does he have reinforcing rings inside them?
I have seen a quote of 33ft as Tao's maximum dive depth, this could be way too deep for the barrels.
With submarines there is a design crush depth, the depth at wich by calculation the submarine should crush.
The test depth at wich the submarine has been tested to UNMANNED.
Then the maximum operating depth wich is 1/2 of the unmanned tested depth.
The operating depth could be 1/4 of the submarines estimated crush depth.
At 33 ft deep there is 2,116 pounds of pressure on every square foot of the submarine.
Should the submarine colapse with Tao in it, does he know that if he escapes at depth he will have compressed air in
his lungs & needs to breath out as he ascends to avoid his lungs bursting & possible death.
Does Tao have any questions? We would be happy to answer them for him.
We are very impressed, its a difficult task building a submarine.
If you look on the psub site under members projects there are a lot of pictures of submarines in progress.
Regards Alan
----- Original Message -----
Sent: Wednesday, September 09, 2009 1:39 AM
Subject: RE: Tao Xiangli submarine
Hi Alan&Jon,
This is Christina Hu, Reuters Photographer in China, Based in Beijing.
0A
You all are really professional! "Would be fantastic to have your advices" Tao told me.
Tao can not speak English, and I will translate for him :)
Here's the picture story:
And, we will have Reuters TV story and Retuers Text story tomorrow, a multimedia story as well.
Will send you the story links when ready on the wire.
Best Regards, Christina.
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
Christina Hu
Assistant to Chief Photographer / China
Alan, thanks a lot for this as that was a big concern I had when I met him. I copy Christina Hu into this e-mail as she is in contact with him at the moment and she will help to make contacts. Tks and brds Reinhard Krause
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