Re: Thru hull ducer - revisited
Rich Seeing as how I have a little experiance with this. [img]/images/graemlins/smile.gif[/img]
I would suggest that you copy the shape of the X-ducer in wood on a bandsaw. Use that to make your fiberglass box off of. I had the high speed fairing block that I made the plaster mold from. I have sence sold the fairing block.
One thing about that plaster mold for the B-260 Airmar was it had no draft to it. In order to get the plaster plug out of the mold I had to drill 3 holes thru the top with a holesaw and drive it out with a piece of cut off broom handle. Yes the plaster was primed and waxed and I sprayed it with PVA also.
It reallu wasn't a big deal, because I haden't finished all the layup.
If I were doing it on your boat with the stringer down the middle I would sister 2 pieces to the outside of the stringer and tie it into the box. Just shim the sisters out enough so that you have enough room to get the nut on the X-ducer stem between the sisters.
Now on my boat it will have braketed twin outboards so the centerline deal is not a problem. I don't belive that you will have problems with that and your single, as the water shouldn't be disturbed.
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