depth transducer Re: [Rhodes22-list] GPS and Depth Finder

[Mary Lou Troy]

Rummy mentioned our transducer mount - it's a little tacky but it works. We 
were going to mount our transducer to shoot through the hull in the 
lazarette. In testing it out we found that it worked until we got into 
shallow water (less than 8 ft.) and then turbulence either from the keel or 
the motor seemed to disrupt it. Since our transducer was designed for a 
stern mount we decided to mount it there temporarily while we decided what 
to do. That was about six years ago.

The transducer is mounted on a length of PVC. The PVC has a cap on the top 
and two stainless steel hooks that fit over the stern rail. One hook 
supports the  PVC when the transducer is in the water, the other supports 
it in a position well out of the water. A U-bolt with a removable plate 
holds the PVC against the stern rail support adjacent to the swim 
ladder.  Pictures are attached. One is of the boat sailing away from the 
camera. You can see the PVC pipe next to the swim ladder and the fishfinder 
screen on a removable mount next to the left of the companionway. Another 
picture is of the PVC with the hook over the stern rail. Next is the U-bolt 
holding the PVC against the stern rail support. The cable runs over the 
transom and along the drain channel at the back of the seats to the 
line-holder for the the centerboard pennant to the screen on the other side 
of the companionway. Last (if these transmit in order) is the transducer 
attached to the base of the PVC.

The transducer reads fairly accurately on the stern. It varies a bit from 
tack to tack but it's close enough to the centerline that this isn't an 
issue. It does come out of the water if we are hobbyhorsing over wakes or 
in steep chop but we try not to do that much.

Hope someone found this interesting.

Mary Lou
1991 R22 Fretless
Ft. Washington, PA / Swan Creek, MD



At 09:10 AM 1/13/2006 -0500, you wrote:
>Mark,
>If you do decide on a depth finder, I'm with Mary Lou, get a combination
>fish finder/depth finder. We have one on the Chris Craft and they are nice
>because you can see what's on the bottom. Ours also tells us the 
>water  temperature
>and the unit is mounted on the transom of the boat. You might ask  Mary Lou
>where they have the transducer mounted on the R22.
>
>Rummy
>__________________________________________________
>Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
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