I have the pointy end type from Garmin. It is mounted to port of the
keel (about 2 ribs), under the bunks and about 4 inches forward of the
bulkhead. I made a puddle of 100% white silicone rubber, about 2 inches
in diameter and 1/2 inch high and simply pressed the transducer into
place...held it in place for about 5 seconds and it hasn't moved since.
That was about 4 years ago. It has worked right since day one. You can
see the depth to bottom, bottom type (by grayline), submerged trees,
weeds, fish echos....everything.
BTW, being able to see the bottom content is a big help when deciding
where to drop the anchor. If there is crud down there to hang up on,
you can see it.
Howard
On Jun 19, 2006, at 4:03 PM, Bill Lamica wrote:
Hi Rick,
Here is a guess. I heard the transducer that looks like a boat hull
(pointy
front, square back) does not work as well as the round puck style used
for
the shoot through the hull applications. If I used the transom mounted
style, I was told to build a round berm of silicone sealer, add Squibb
mineral oil and carefully embed the pointy end forward with no air
bubbles
in the oil. That sounded like a major pain, so I ordered a 20 degree
round
one and it worked fine with the silicone only. That was a while back
with an
Eagle unit. The info may or may not apply.
Did you get the chance to look at Norm Bundek's Sonar installation?
album:
http://www.msogphotosite.com/M15Sndr.html He is using the boat hull
type
installed just as you mentioned (of course proving my theory wrong) so
he
may have some further information.
Just to make a point. The same Eagle I mentioned also came with a
portable
housing and a couple of lantern batteries. I beat the crud out of it
and
never damaged the transducer. Howard is absolutely right... they are
tough!
Bill
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