Alan,
You will never get a chance to take a breath off of it on ascent as it will be pulling you too fast. In addition, you don’t want to take a breath on a speedy ascent…if you did, you would probably rupture a lung. The Brits who did the ascents from 600+ ft. went up all of the way with only their initial breath at the bottom. You should be exhaling almost continuously on the way up. Our Navy has you saying HO-HO-HO all of the way to the surface.
R/Jay
Resepectfully,
Jay K. Jeffries
Andros Is., Bahamas
Save the whales, collect the whole set.
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Alan James
Sent: Tuesday, August 04, 2009 5:31 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] escape from sub
I've always thought that the inner plastic bag that contains the wine in a 3 liter cardboard wine cask
would make a good emergency floatation device for fishing; but would be even better for small subs.
You could roll it up (once emptied) stick rubber bands around it & put it in your pocket.
A cord attached around the neck (of the bag) could have a loop for your wrist on the other end.
While the sub is filling with water you blow into the bag. This will expand to 24 liters from 200ft
so there should be a few breaths of air from it on the way up. You would need to work the valve in
the process & avoid taking too many breaths in the first 100ft.
I'll try it out when the weather gets warmer, its the middle of winter down here.
It might be better than nothing & its free.