Early on in the development of subs when their size would have put
them in the PSUB range and before diesels were available, it quickly became apparent
that gasoline should not be carried within the hull. Fumes are easily
generated and if they don’t explode, they are poisonous and can asphyxiate
sub occupants. Fuel is always carried outside the hull. For these
reasons, even after the advent of diesels.
R/Jay
Jay K. Jeffries
Andros Is., Bahamas
A skimmer afloat is but a submarine, so poorly built it will not
plunge…
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brent
Hartwig
Sent: Tuesday, August 28, 2007 3:47 PM
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Transit Outboards
Great idear Frank,
I would
expect that with some of the smaller outboards you could put them inside the
sub, perhaps in a special built case, with out the need of a surface boat.
You would want to make sure the gas didn't leak out.
I had
thoughts along this line some time back, and was thinking about making a very
small and light pressure hull to custom fit over the outboard rated at the same
working pressure as the sub. The said small pressure hull could be made out of
aluminum, steel, stainless steel, titanium, FRP or some other composite. It
would be a great place to practice building and testing composite hull designs,
since if it fails, you won't likely be harmed by it's implosion.
For this
type of arrangement you will likely need manually operated valves for the
exhaust and intake.
From: ShellyDalg@aol.com
Date: Mon, 27 Aug 2007 23:10:18 -0400
Subject: Re: [PSUBS-MAILIST] transit
To: personal_submersibles@psubs.org
Concerning surface
transit.....What if you had an outboard motor on the back, and when your sub
reached the dive site, transfer the (small) outboard to the support boat. A 20
horse motor should be easy to disconnect and pick up, transfer to a motor
boat, and would likely power a small sub at a good speed, while not using
any battery power. I assume you would have a surface boat as a safety
precaution when you're diving the sub.
If the outboard mount was
connected to the subs rudders, you could use the same steering mechanism to
steer the outboard. Frank D.
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