[CA] Install help needed for a CPT 110 Transducer

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum BForsyth,

Q1. Can the fairing block be cut with a table saw instead of a band saw? I don't own a band saw.
A1. Please see a video found here showing a transducer fairing block being cut. I believe that may find it more challenging, potentially more dangerous, and will generate a larger kerf than that produced by a bandsaw. Should you not have a bandsaw of adequate size, then may want to consider contacting a marine electronics installer to cut the fairing block for you.

Q2. Should I use 3M 4200 or 5200 adhesive for the job?
A2. The installation instructions simply specify "Marine grade adhesive sealant (suitable for submerged applications)". 3M 4200 and 5200 are two adhesives designed for such purposes.

Q3. When drilling the [censored] ..... Should I be drilling straight up into the boat perpendicular to the water line or straight into the boat so more like an angle? I believe my dead rise is 17 degrees.
A3. Should the fairing block be properly cut, then it will cause the transducer's shaft to be perpendicular to the waterline and for the transducer's face to be parallel to the waterline.

Q4. Do I run silicone between the transducer and the bottom fairing block? Or just between the bottom fairing block and the bottom of the hull?
A4. See the response to Q2. The same sealant may be used for all sealing aspect's of the transducer's installation.