Frank,
I've never heard of a diver blowing there BCD apart & the sought of
scenario you are
talking about happens all the time scuba diving.
The last 30ft are the worst where the volume doubles to the
surface.
You could do calculations based on your vent size. However I doubt
wether your flying
saucer is going to exellerate that fast in an upward direction.
Alan
----- Original Message -----
Sent: Wednesday, May 19, 2010 5:32
PM
Subject: Re: [PSUBS-MAILIST] Ratio of
ballast tank holes
Frank,
That
is what I was alluding to when I answered the first thread.
Hugh.
Yes, Hugh. That's what I thought. There are several variables
involved.
I don't know if it would be a problem but the holes in my
ballast tanks are two each at 2 inch diameter. I don't expect to use the
bubble to ascend but it could be necessary under some unexpected
circumstance. This is an area that I haven't done any testing on and like I
said, the scenario pops into my thoughts from time to time.
Are you coming to the convention? It's a long way for you but I
know everyone would like to see you again. Hope you can make it.
Frank D.