flush mount transducer

Sticking the transducer to glass works fine until you want to do something with it, its kinda permanent. At least with a properly done wet box you can swap it out easily if you want to upgrade, replace or even just try a different cone angle. Its more effort but its a little more flexible.

 

Hmmm food for thought.Thanks Tom,sounds a quick & easy method.
If you want to use th electronic log though I need it in the flow.
Also I have read that you have to have a more powerful sounder to go thru the hull? (FRP) My hull is only 2mm thick and the paddle wheel will not be affected. But I will have to build up the (socket) with extra glass. The sounder is a Furuno LS4100 and only 300W rms.
And I will glass in a couple of bronze nuts with greased thread inserted so I
can have added security of a backing plate.
Actually,thanks mate! That a gem of a way to do it. Thinking aloud here as the coffee kicks in.

 

The transducer set in a thin film of silicone is removable, especially if you are a gorilla

I find a good GPS to be more accurate in many cases than a paddle wheel. I have both on one boat and am often surprised at how much surface current there is that makes for error on a paddle wheel.

 

I find a good GPS to be more accurate in many cases than a paddle wheel. I have both on one boat and am often surprised at how much surface current there is that makes for error on a paddle wheel.[/QUOTE]

I need both.