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 Catalina 250 Specific Forum
 C250 WK Schroud chainplates		  New Topic  Reply to Topic
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zeil
Master Marine Consultant

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Canada
1297 Posts
Initially Posted - 12/31/2021 :  12:01:41  Show Profile  Reply with Quote

Does someone know and can outline as to how the shroud chain-plates are fastened to the hull and how the hull is reinforced on a 2000 C250 WK

Henk & Johanna
"Floating", a few off your "barnacles".
"Someday Lady" '95 C250WB #151 ('03 - 2016)
"Sea ya" 30ft Bayliner (04-2018 - 09-2018)
"Mariah" '96 C250WB #191 (05-2019 - 15-05-2023)
"Lady J" '00 C250WK #499 (05-2021 - 09-2022)

davidtree
Deckhand

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USA
18 Posts
Response Posted - 12/31/2021 :  17:48:42  Show Profile  Reply with Quote
https://www.catalinadirect.com/index.cfm?fuseaction=page.searchResults

There is a backing plate hidden under the gunnel and the plate screws through it. See web site, David
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zeil
Master Marine Consultant

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Canada
1297 Posts
Response Posted - 01/03/2022 :  17:11:48  Show Profile  Reply with Quote
Thanks for the info...



Anyone know how and where this rod is attached to?
Henk & Johanna
"Floating", a few off your "barnacles".
"Someday Lady" '95 C250WB #151 ('03 - 2016)
"Sea ya" 30ft Bayliner (04-2018 - 09-2018)
"Mariah" '96 C250WB #191 (05-2019 - 15-05-2023)
"Lady J" '00 C250WK #499 (05-2021 - 09-2022)
Edited by - zeil on 01/06/2022 12:30:19
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csmcg
1st Mate

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96 Posts
Response Posted - 01/07/2022 :  12:13:43  Show Profile  Reply with Quote
Henk, I have wondered this myself but haven't taken the time to explore.

I don't know if the structure will be visible from the v-berth access or maybe from the settee access, but I will take a look this weekend with an endoscope to see if this area can be visualized.

My hull (#487) shouldn't be too different from yours.

Regards, Chris
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zeil
Master Marine Consultant

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Canada
1297 Posts
Response Posted - 01/08/2022 :  12:52:52  Show Profile  Reply with Quote

The interesting thing is that no attachment shows on the outside of the hull nor any kind of chain plate or bolts from the inside of the coaming lockers.


Henk & Johanna
"Floating", a few off your "barnacles".
"Someday Lady" '95 C250WB #151 ('03 - 2016)
"Sea ya" 30ft Bayliner (04-2018 - 09-2018)
"Mariah" '96 C250WB #191 (05-2019 - 15-05-2023)
"Lady J" '00 C250WK #499 (05-2021 - 09-2022)
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DavidCrosby
Navigator

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USA
229 Posts
Response Posted - 01/09/2022 :  09:40:30  Show Profile  Visit DavidCrosby's Homepage  Reply with Quote
A Google search came up with the following:

This is generic Catalina stuff. May or may not represent our boats, but I bet it is similar.

The included snapshot came from the following link:

http://www.sailplace.com/wp-content/uploads/2016/02/Catalina-Tech-Brochure.pdf
David Crosby "Small World"
'02 C250 WK #614
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islander
Master Marine Consultant

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USA
3992 Posts
Response Posted - 01/09/2022 :  13:26:51  Show Profile  Reply with Quote
I would say that the diagram David found is just how they are put together. The big question is how can you get to those nuts if ever needed. Is there an access panel anywhere?
Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound


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Steve Milby
Past Commodore

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USA
5851 Posts
Response Posted - 01/09/2022 :  13:41:51  Show Profile  Reply with Quote
I'm beginning to think that you'd have to install an inspection port. It would be concealed behind the cushions.
Steve Milby J/24 "Captiva Wind"
previously C&C 35, Cal 25, C25 TR/FK, C22
Past Commodore
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zeil
Master Marine Consultant

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Canada
1297 Posts
Response Posted - 01/09/2022 :  17:30:18  Show Profile  Reply with Quote


Thank you David... this is excellent information. It's impressive that Catalina uses this same method on all (most?), of their larger production boats.

It seems, well, almost a little overdone on our 25foot boats. Since there is provision for adjustments at exposed connections there should be no need for an access opening providing nothing works its way loose.

Two observations
The arrangement passes through solid deck fiberglass
Point loads are spread over a wider reinforced section of the hull
Henk & Johanna
"Floating", a few off your "barnacles".
"Someday Lady" '95 C250WB #151 ('03 - 2016)
"Sea ya" 30ft Bayliner (04-2018 - 09-2018)
"Mariah" '96 C250WB #191 (05-2019 - 15-05-2023)
"Lady J" '00 C250WK #499 (05-2021 - 09-2022)
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CGSC_Gaviota
Deckhand

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USA
10 Posts
Response Posted - 02/08/2022 :  14:31:50  Show Profile  Reply with Quote
quote:
Originally posted by Steve Milby

I'm beginning to think that you'd have to install an inspection port. It would be concealed behind the cushions.


I would not cut into that unless you really really have to. That's structural. Be judicious with hole drilling.
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Voyager
Master Marine Consultant

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USA
5231 Posts
Response Posted - 02/10/2022 :  06:50:14  Show Profile  Reply with Quote
Agreed, I learned a long time ago, if it ain’t broke, don’t fix it. If it’s loose, but tightens up under load (mast heeling) also don’t fix it.
Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain — Milford, CT
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Russ.Johnson
Commodore

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USA
833 Posts
Response Posted - 04/17/2022 :  18:41:38  Show Profile  Reply with Quote
The chainplate support is used on all C250 wing-keel models and later water-ballast models.
The early water-ballast models had the chainplate at the deck/hull joint.

The is no inspection access plate.
Also, the drawing is slightly different from the C250 design.
If you look at the C250 photo, the top and the bottom of the tie-rod has a pin and “cotter key” design.
This leads me to believe the bottom fitting is mounted from the underside without any fasteners, but I can’t be sure.

It’s the same basic design, just slightly different delivery.
My 2005 water-ballast model has the same tie-rods as the wing-keel model.
Russ Johnson
2005 C250WB Hull 793
Edited by - Russ.Johnson on 04/21/2022 08:27:12
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JB
Navigator

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USA
110 Posts
Response Posted - 04/18/2022 :  08:13:28  Show Profile  Reply with Quote
I've used an inspection camera and drilled small hole for access to inspect this area on different sailboat. I'd be interested if anyone has inspected theirs to see if this is an area of concern.
1988 C25 Wing Keel Std Rig Tohatsu 9.9 Tiller Steering and 2003 C250 Wing Keel Std Rig Inboard Diesel Wheel Steering
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Russ.Johnson
Commodore

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USA
833 Posts
Response Posted - 04/21/2022 :  08:26:16  Show Profile  Reply with Quote
I edited my post above with corrections
Russ Johnson
2005 C250WB Hull 793
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.