Bow Centreline. - SailNet Community
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post #1 of 12 Old 09-22-2012 Thread Starter
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Bow Centreline.

Hi All,

We have put an offer on a 1977 Grampian 28 subject to the results of the marine survey. But I hope someone may answer this question please...there is a 1 to 1.5" hole on the bow centreline below the waterline, which has a wooden plug in it. The knot meter is nearby on the port side.
This boat is being sold by a marina for storage not being paid, so little history is being offered. The boat is in great shape and is c/w all equipment including a Volvo Penta Diesel Model 2002 inboard which looks pretty clean.
The boat is going to be a great cosmetic project and we look forward to owning our first sailboat.

Cheers,.
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post #2 of 12 Old 09-22-2012
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Re: Bow Centreline.

Probably used to have a depth transducer in it. I'd probably want to do something a little more permanent than a wooden plug in any case.

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post #3 of 12 Old 09-22-2012
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Re: Bow Centreline.

It might be the thru-hull for the depth sounder transducer. See what the surveyor has to say about it, but if there is to transducer to go in the spot, it is not a big deal to glass up and fill the hole. Leaving just a wooden bung in the hole is not a good idea.

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post #4 of 12 Old 09-25-2012 Thread Starter
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Re: Bow Centreline.

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Originally Posted by SchockT View Post
It might be the thru-hull for the depth sounder transducer. See what the surveyor has to say about it, but if there is to transducer to go in the spot, it is not a big deal to glass up and fill the hole. Leaving just a wooden bung in the hole is not a good idea.
Thanks guys for the replies! I will wait for the survey, but it looks like the hole was part of manufacturing not after. I pulled everything out of the Vberth area and looked below. There is a water holding tank, but I think the hole is still towards the stern from there?
Besides glassing over it, what could be used as a permanent plug?

Cheers,

Ron
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post #5 of 12 Old 09-25-2012
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Re: Bow Centreline.

You could use the hole to instal a fitting for a dolphin striker and bow sprite.
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post #6 of 12 Old 09-25-2012
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Re: Bow Centreline.

You could put a true through hull fitting for a future mascerator pump out if you were ever going offshore.

Probably is for the speed/ knot log transducer. We dont leave ours in as it gets clogged with growth. Do you have that instrument on the boat? If you do the transducer will be somehwere attached to a cable in the v berth hull area.,

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post #7 of 12 Old 09-25-2012
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Re: Bow Centreline.

Regardless if the through hull was factory installed, or aftermarket, it is still just a useless hole in your hull! If you still have the instruments but the transducer is missing, you might be able to get a new transducer, or the correct plug that locks in to the through hull. If you don't have the instruments, but you think you might get some, you may be able to remove the old through hull and put the new one in the same hole, although the odds of the new having the same hole size is pretty slim. If you don't plan on getting instuments anytime soon, just glass up the hole!

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Re: Bow Centreline.

glass in a kelp window ?
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post #9 of 12 Old 09-25-2012
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Re: Bow Centreline.

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glass in a kelp window ?
It's not a kelp window, it is a hole with a wooden bung in it.

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post #10 of 12 Old 09-25-2012
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Re: Bow Centreline.

obviously the torpedo tube opening.
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