As for lift bags, I like the buoy better for this. Lift bags either dump air with side pressure or, if they are the closed kind, vent through their overpressure valves. The buoy is a closed float and can beat around a lot and still retain their volume, thus their lift.
-----Original Message-----
From: ShellyDalg@aol.com
To: personal_submersibles@psubs.org
Sent: Wed, Mar 24, 2010 9:21 pm
Subject: Re: [PSUBS-MAILIST] diesel electric propulsion module
In a message dated 3/24/2010 3:28:57 P.M. Pacific Daylight Time,
vbra676539@aol.com writes:
Assume that one of the annular hatch o-rings was leaking
Hi Vance. Ya, I can see how that wouldn't work. The "lift bag" deployed by the surface crew sounds like the best. Frank D.