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Old 21-01-2022, 21:10   #16
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Location: Toronto, Canada
Boat: Luders 33 - hull 23
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Re: Making a tranducer fairing block & Routering fiberglass?

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Originally Posted by deblen View Post
The face of the ducer still needs to be parallel to the water. Perhaps you can build a "chest" using 3-4" pvc pipe cut to the hull slope so it will stand vertical.Glas this pipe to the hull.
Put a pipe cap on it,not glued, and mount the ducer in the cap.
Cut this pipe so that the ducer face will be approx 1/4" from touching the hull. Add oil to cover the ducer.
Cheers/Len

Thnx, what my plan is!
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Old 22-01-2022, 19:14   #17
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Re: Making a tranducer fairing block & Routering fiberglass?

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Originally Posted by deblen View Post
Why not cut a 4",or so, hole in the hull & a 2" hole in the fairing.
Mount the ducer down in the fairing as pic 4 shows the fairing face parallel to the water.
You might want to add a few layers of glas to the fairing to strengthen it?
Cheers/Len


PS: the best place for a t-ducer is about 1/2 way,or so,back from the bow & within a foot ,or so, out from the keel. This helps avoid air bubbles from the bow rolling over the ducer face which can cause picture breakup/erratic depth readings.
Just my experience as an old tech.

This is an option, basically your'e mounting the 'ducer to the fairing block and not the hull, but the block is well-adheted to the hull.

And yes I've been second-guessing the location, maybe put it out further from the center. The I get to make another fairing block, yay! This time I'll drill exploratory holes to make sure of material thickness rather than rely on "common knowledge"
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Old 22-01-2022, 19:22   #18
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Re: Making a tranducer fairing block & Routering fiberglass?

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Originally Posted by jhulmer View Post
what is the fairing block made of? Nice job on the mold!
Just gobs of epoxy filler, you can decide how hard to make it by the mixture of filler material used but watch out for heat as it cures
It is not heavy
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