FYI, some years ago
I got a fluxgate compass and tested it on the sub. I found it had to be
mounted at least three feet away from the hull to get acceptable readings. A big
limitation of the test was that it was conducted on land, so I wasn't
running any thrusters under load - hence the steel was a factor but the
electrical currents weren't realistic.
Alec
The contents of this e-mail are intended for the named addressee only. It contains information that may be confidential. Unless you are the named addressee or an authorized designee, you may not copy or use it, or disclose it to anyone else. If you received it in error please notify us immediately and then destroy it.
Another option that is very economical and adopts easily to different
magnetic fileds if you dive in different areas is a magnaflux compass.
Mount outside the hull with a digital readout inside. No moving parts and
very reliable.
R/Jay
-----Original
Message-----
From: "Dan H."
Sent: Jun 29, 2008
3:46 PM
To: personal_submersibles@psubs.org
Subject: Re:
[PSUBS-MAILIST] compass location
The magnetic compass wouldn't work inside the steel
sub. I originally had it closer to the viewport but it still didn't work
there. It works somewhat out on the fiberglass MBT but even out there
it's not really reliable. That's why I installed a gyro
compass.
Dan H.
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