Re: [PSUBS-MAILIST] safety issues

[Paul Kreemer <paulkreemer@gmail.com>]

That seems like a short amount of time!  Isn't it common to just not operate in water depths greater than your crush depth?  Or even your max operating depth?

Paul

On 1/5/06, Ian Roxborough <irox@ix.netcom.com> wrote:

On Thu, 5 Jan 2006 09:41:08 -0800 (PST)
Robert Ossian <rob_neptune@yahoo.com> wrote:


One way of looking at the the margin is "how long do you have
to solve you problem before you hit crush depth".  With 150feet
safety margin, if you are sinking at 1 foot per second, the time
from max opteration depth to crush depth is 2.5 minutes.  If
you are decending at 2 feet per second, your time is 1.25 minutes.

Ian.