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Yeah, I was trying to keep that part
off-list :-D
Rick L
----- Original Message -----
Sent: Wednesday, September 20, 2006 8:41
PM
Subject: Re: [PSUBS-MAILIST] simple works
for me
The meaning has changed a bit then, I remember it
being less kind :)
----- Original Message -----
Sent: Wednesday, September 20, 2006
11:20 PM
Subject: Re: [PSUBS-MAILIST] simple
works for me
Engineers use the K.I.S.S.
formula . . . Keep It Safe and Simple
Rick L
----- Original Message -----
Sent: Sunday, September 17, 2006
11:04 PM
Subject: [PSUBS-MAILIST] simple works
for me
I think that the trolling motors seem the best. I know that on a boat
they can give hours of strong propulsion on one deep cycle battery. I
guess thats as over the counter as you can get. the ones you mount on
outboard motors seem to be the easiest to mount. better than guessing on a
setup that will work and spending hundreds on a failed system or something
loud and slow
-----Original Message-----
From:
ShellyDalg@aol.com
To: personal_submersibles@psubs.org
Sent: Mon, 18
Sep 2006 12:38 AM
Subject: Re: [PSUBS-MAILIST] new hydraulic
pump
The methods of propulsion I've seen so far seem to be mostly trolling
motors. That goes along with the tried and true. It also seems the least
expensive, easiest to install, and probably the easiest to fix/maintain.
Not having any REAL experience, I'm just relaying my thoughts so far. I
have seen some good applications though. One guy used scuba tanks and
regulator to pressurize the motors. Looked pretty simple to install, and
seemed to make sense. The other method I've heard about is oil filled
motors. As I understand it, a fitting is installed in the motor housing
and a flexible tube is attached and sealed after filling the motor and
tube with light oil. As the assembly goes down and is exposed to greater
pressure, the flexible hose is squeezed and maintains equal pressure with
the surrounding water. Sounds too simple but it should work. Does anybody
have any more info on this?
I like the idea of having wires in a thru-hull versus a larger hole
with hydraulic oil and the maintenance that would entail. The electric
thru-hull connectors are certified to something really deep, have prongs
to pull the wires off, and with a ball valve on there, any leak would be
shut off quickly. Here's an idea....how about using air motors to drive a
prop. Like maybe using a modified air-tool motor ( grinder, drill, etc.)
Some of them run at very high speeds, it would be a pressurized system,
and you could carry extra air bottles instead of having to spend all nite
recharging your batteries.Maybe I'll dunk one of my tools and see what
happens.
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