Mad Question

Any explanation why ?. It would be interesting to know why, differences in either case, etc.

 

This is the best way to go.

 

http://covertshores.blogspot.it/2010/06/narco-submarines-torpedoes-and-semi.html

 

Best to start with a used Lotus Esprit in solid rust free condition (about $35,000.)

 

I have heard it said, rather unkindly, that LOTUS stands for "lots of trouble, usually serious". I dare say that would be a strong possibility, in the submerged mode !

 

50 meters? For how long?

At that depth diving becomes more complicated. No, it's not impossible, but not easy. We're talking trimix using helium to reduce nitrogen narcosis and oxygen toxicity. And mandatory decompression stops up to 30 minutes breathing a decompression mixture. So tank changes and decompression stops are required. At 6 ATM your lungs are filling with 6 times the volume of air at the surface, making an air dive not just dangerous...but incredibly short. Perhaps a few minutes not counting accent and descent times.

No, unless you're dealing with a vehicle designed specifically for diver transport at depth, I don't see how this can be done "wet".

Cheers,
Ed

 

Hi Ed,

No guarantees made of return to surface...........

Jeff.

 

It would be cheaper and safer to watch re-runs of Twenty Thousand Leagues Under the Sea.

 

50 meters dive does not require trimix, nitrox is sufficient. There is no need to have a decompression mixture; specially if you do use trimix. As far as time, it is unlimited. The decompression time will increase. Commercial divers routinely stay for a week or more at depths of 200 meters.

 

Clearly, this (decompression), you do not understand very well.

 

I am a diver, are you? Playing with computers is not the same as what men do in the field.

 

Yes, Gonzo, a have been a diver for many years. Not at this moment.
And besides, I have knowledge of physics and a little, very little, of anatomy and physiology. So I do not need to be a diver to know that what you say is not correct.
BTW, in what field?

 

Are you saying that commercial divers don't stay for weeks at a time in a bell? It is called saturation diving. With re-breathers, depths of 300 feet are common. There is no need of special gasses for decompression, just enough time. The field is the part of the world where things get done or used.

 

No, Gonzo, at any time I say what do you suppose I say. What I am saying is that what you say in the post # 39, and some of the post # 43 is not correct. Is that clear ?, because I refuse to continue this dialogue of fools.

 

In that case you disagree with PADI and the US Navy.