Installing big thru hull transducers...have you done it?

[Mr. Sandman]

Yeah...the hull is cored and the current transducer sits along the CenterLine in a flat-ish spot inside. I don't know if it is cored along the keel . I have drilled thru sections of the transom and sides to install thru hull fittings and have that section.
I have plenty of room on both sides of the engine and in front of it as well.

I worry about the shoot thru. The acoustic signal will have to pass through several layers of material of different densities...both ways.

[MakoMike]

Originally Posted by Mr. Sandman

Yeah...the hull is cored and the current transducer sits along the CenterLine in a flat-ish spot inside. I don't know if it is cored along the keel . I have drilled thru sections of the transom and sides to install thru hull fittings and have that section.
I have plenty of room on both sides of the engine and in front of it as well.

I worry about the shoot thru. The acoustic signal will have to pass through several layers of material of different densities...both ways.

1) if the hull is cored a shoot-through installation won't work well.
2) When you install the transducer you have to remove some of the coring around the hole so that you can fill it with epoxy to prevent water intrusion. A wet cored hull is not something you want to deal with. Remove at least 1 inch of coring all around the hole and pack it with epoxy and cabosil mixture before you install the transducer.