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Vessel lifting point

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Zoom 495 View Drop Down
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Post Options Post Options   Quote Zoom 495 Quote  Post ReplyReply Direct Link To This Post Topic: Vessel lifting point
    Posted: 02 Dec 2014 at 12:41am
My 1977 vintage Contessa has a vessel lifting point that extends up from the keel through the "water " tank and terminates at the cabin sole with a female thread which can accept an eye bolt. 
Do all Contessas have this fitted?
As I wish to fit a bladder tank ( hopefully) to the above keel space, does anybody have some input on removing this hardware?
Thanks,Kris


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George Isted View Drop Down
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Post Options Post Options   Quote George Isted Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 2014 at 12:44pm
That's a new one, never seen that before. It not used I expect it could be removed by cutting out.   

Got any pictures you can share?
George Isted
Contessa 32 "Concerto"
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Post Options Post Options   Quote Zoom 495 Quote  Post ReplyReply Direct Link To This Post Posted: 02 Dec 2014 at 8:04pm
Must have been a custom fit right from the yard. The original owners who bought it from J Rogers wanted to sail it from Eastern Canada to the Caribbean, and I believe single point haul outs are the normal down there. Anybody know that for sure???
Anyway, it will go eventually.
What is the capacity of the water tank? I will use this figure to get a bladder tank.
Thanks,kris
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Post Options Post Options   Quote George Isted Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2014 at 2:05pm
The original tank fitted to Concerto in '78 was around 50-60L, The new stainless tank is about 80L.

Be careful if/when removing your lifting point as the keel structure needs bonding over the top to tie the sides together and stop the hull from flexing when beating hard.
George Isted
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Post Options Post Options   Quote Zoom 495 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2014 at 3:40pm
So, is the water tank at all structural?
Is there a void between the bottom of the water tank and the top of the keel?
I just assumed the bilge from the forward areas just flowed over the water tank to the bilge well.
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Post Options Post Options   Quote George Isted Quote  Post ReplyReply Direct Link To This Post Posted: 03 Dec 2014 at 3:52pm
The water tank itself is not structural but there is bonding that goes over the top of the water tank onto the hull each site that is important.

As an overview - there is a big lump of lead in the bottom of the keel, this is sitting in resin with a layer of glass mat over the top. Above this is the void where the water tank sits, there is an air gap at the sides and below the tank to hold any bilge water. Therefore any bilge water from up forward flows aft under the tank not over it.

There should be some holes drilled in the bonding over the water tank (that is immediately under the floor) so that any water on the floor will drain down to the bilge past the water tank.

Hope that helps explain what's going on down there.
George Isted
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Rclark1977 View Drop Down
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Post Options Post Options   Quote Rclark1977 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Jan 2015 at 2:25pm
Hi 

Just seen this post. Carolina has the same threaded "socket", Jeremy
told me that at one time it was used for moving hulls around the factory.
Nothing more exciting Im afraid.

Richard
Richard Clark
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Post Options Post Options   Quote Zoom 495 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2015 at 4:42am
Richard, does Carolina still have the "threaded socket" then?
If not, did you remove it?
Cheers,kris
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Post Options Post Options   Quote Rclark1977 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2015 at 9:02am
Hi Kris
No it was removed when the old tank was replaced with a new stainless steel tank
a few years ago. I understand it was a bit of a devil to remove!
Best
Richard
Richard Clark
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