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Jan 23rd, 2013
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2015 1966 G3 Boat Issue with Mega transducer losing depth #12806627
06/26/18 10:25 PM
06/26/18 10:25 PM
Joined: Apr 2018
Posts: 7
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Benj Offline OP
Green Horn
Benj  Offline OP
Green Horn
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Joined: Apr 2018
Posts: 7
Have tried adjusting transducer and several recommendation. Is there anyone who owns my type of boat who has fixed the problem with the transducer losing depth? The plates on the back of boat seems to be causing much of my turbulence. I've also installed the high speed transducer; still same problem.


Re: 2015 1966 G3 Boat Issue with Mega transducer losing depth [Re: Benj] #12806877
06/27/18 02:21 AM
06/27/18 02:21 AM
Joined: Feb 2010
Posts: 10,671
Lewisville Tx.
shut-up-and-fish Offline
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shut-up-and-fish  Offline
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Joined: Feb 2010
Posts: 10,671
Lewisville Tx.

It is hard to tell and it may just be the angle of your image but it looks as though your transducer is above the skeg on the bottom of the boat. This can put your transducer in dirty water causing the turbulence.

I use my charts when running on plain. The Contours tell me my depth and what is ahead of me which I find to be much safer than watching numbers.



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Re: 2015 1966 G3 Boat Issue with Mega transducer losing depth [Re: Benj] #12807371
06/27/18 02:33 PM
06/27/18 02:33 PM
Joined: Apr 2018
Posts: 7
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Benj Offline OP
Green Horn
Benj  Offline OP
Green Horn
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Joined: Apr 2018
Posts: 7
Thanks. I appreciate your comments. The transducer is in the only place without the plates.

Re: 2015 1966 G3 Boat Issue with Mega transducer losing depth [Re: Benj] #12807607
06/27/18 05:08 PM
06/27/18 05:08 PM
Joined: Nov 2010
Posts: 4,161
Charlottesville, Va
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Wayne P. Online content
TFF Team Angler
Wayne P.  Online Content
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Joined: Nov 2010
Posts: 4,161
Charlottesville, Va
The centerline of the transducer (top to bottom) should be matched to the hull bottom, if you want on-plane depth and 2D sonar.
Both look to be at least 1/2" too high. Also the trailing end should be lower than the leading end so it deflects the water to get a smooth water flow across the face of the transducer you use for on-plane depth.


Humminbird Helix 12 CHIRP SI, 1198c SI, 1198c SI, ONIX 10 SI NT, Helix 7 CHIRP SI GPS G2, SOLIX 12 SI, 360, RC-1
Re: 2015 1966 G3 Boat Issue with Mega transducer losing depth [Re: Benj] #12808157
06/28/18 12:40 AM
06/28/18 12:40 AM
Joined: Aug 2011
Posts: 2,837
Austin, Tx
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Bob Landry Online content
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Bob Landry  Online Content
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Joined: Aug 2011
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Austin, Tx
It also looks like it is sitting directly in front of the rib on the bottom of the hull.


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Re: 2015 1966 G3 Boat Issue with Mega transducer losing depth [Re: Benj] #12812296
07/01/18 01:49 PM
07/01/18 01:49 PM
Joined: Nov 2010
Posts: 4,161
Charlottesville, Va
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Wayne P. Online content
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Wayne P.  Online Content
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Joined: Nov 2010
Posts: 4,161
Charlottesville, Va
Add this to your 2D transducer to get more adjustment without drilling more holes and it will act like a jackplate for the transducer.

https://www.transducershieldandsaver.com/product/sbb-4-spring-back-bracket/


Humminbird Helix 12 CHIRP SI, 1198c SI, 1198c SI, ONIX 10 SI NT, Helix 7 CHIRP SI GPS G2, SOLIX 12 SI, 360, RC-1
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