Shortwave Sportfishing wrote:
On 25 Aug 2005 09:10:51 -0700, wrote:
Shortwave Sportfishing wrote:
Any suggestions where I could mount a dept finder on the new sail
boat?
Or even how for that matter.
You'll need a fairing block.
Obviously you won't be able to put the transducer on the deepest part
of the hull, (the keel), so you simply measure and make a note to
subtract X inches from the reading on the DS to determine actual depth
under keel. (on my boat, it's 21 inches so I use two feet.
My vote would be to do a standard, through hull installation unless you
hull is cored and there is no solid "plug" available for the purpose.
IMO, these Mikail Rodent shoot through the hull installations are a
pain in the butt. I was aboard a boat where a big tube full of seawater
rose up in the middle of the engine room, surely a perpetual nuisance,
and the explanation was that it was the owner's quick and dirty method
of installing a DS.
I've seen that done on oil service boats - the engine room is the most
likely place to put it because it's always manned by somebody.
The Halman has enough tumble home that I could do a through the hull
without compromising the hull integrity significantly, but the problem
is that under sail, I'd really need two - port and starboard. I was
trying to think of a way to do it with one.
Maybe I'll just go back to lead and line and have anybody on board go
up to the bow and do soundings like in the old days. :)
"By the quarter nine".
~~ snicker ~~
--
Later,
Tom
I've been much more a saler of boats than a sailor, but it would seem
that
a single unit would work even on most sailboats. When you're heeled
over, you're typically moving along pretty quickly on a long reach and
I can't "fathom" (ouch) doing that in an area likely to be shallow.
Would it be possible to get a reading when changing tacks? (not that
you have a lot of time to do so......)
When preparing to anchor or proceeding slowly through fog (and using
the DS to help verify position by comparing soundings on the chart)
your boat should be upright enough to hear the echoes fairly clearly.
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