[Rhodes22-list] Re: Transom mount transducer

[Gregg J. MacMillan]

At 10:10 PM -0600 3/23/06, andrew collins wrote:
>I had saved your input on a transom mount speed(?) transducer, using 
>a clever arrangement of PVC pipe to
>make it removable, but cannot find the post. Could you re-post this?

Here it is:

--Gregg

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Date: Fri, 13 Jan 2006 18:19:09 -0500
From: Mary Lou Troy <mltroy at verizon.net>
Subject: depth transducer Re: [Rhodes22-list] GPS and Depth Finder
Reply-To: The Rhodes 22 mail list <rhodes22-list at rhodes22.org>

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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Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
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