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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Backstay adjuster		  New Topic  Topic Locked
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takokichi
Captain

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USA
321 Posts
Initially Posted - 09/21/2004 :  09:59:47  Show Profile
Is there any reason you couldn't shorten the stock single backstay and put adjusting tackle inline? I understand the load will be out of square, but that's already true. Assuming that the max tension applied to the backstay will not be more than the max tension applied now when the turnbuckle is cranked on it seems to me that it ought to be ok. All I'd really be doing is creating a condition where the rig was sometimes looser than it is typically now.

Seems to me a cascading 8:1 tackle in line is the cleanest and most adjustable system for this boat.


(When I say shorten, I don't mean shorten the existing wire. I mean purchase new wire. Terminate it at ~26 feet and pin a block to the swage fitting.
Justin
Edited by - takokichi on 09/21/2004 10:01:57

ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 09/21/2004 :  10:24:26  Show Profile
I can't see any reason why your idea wouldn't work.

Why not mod the boat for a split backstay? I'm guessing it would probably cost about the same?
Then you'd get the loading on centerline where it should be.
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Steve Milby
Past Commodore

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USA
5909 Posts
Response Posted - 09/21/2004 :  10:48:17  Show Profile
The optional adjustable backstay supplied by the factory is split, and attached to the transom by two tangs. If it was ok to attach it to only one tang, I suspect the factory would have done so, because it undoubtedly costs more to install the second tang.

I think you're correct that it would be no problem if you don't overtension the backstay, but there's too much of a risk that you will inadvertantly overtension it. By adding the second tang, you create a little latitude for error in overtensioning it.

Personally, I would either leave it as is, or add the second tang.
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jwilliams
Captain

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USA
357 Posts
Response Posted - 09/21/2004 :  10:59:44  Show Profile
Justin,

There is a C34, about a '89, a few slips down with a split backstay and a difference.

He has a large wire block at the intersection of the Y (the lower end of the backstay). One end of the lower backstay is attached to the starboard transom strap, the other runs through the block. Instead of being long enough to connect to the transom, this short end is attached to a 4 or 6 part purchase which in turn is attached to the port transom strap. Therefore you tension the masthead with a lot of power.

Personally, I believe you should install a split backstay for safety sake. Doesn't CD have a kit?

Jim Williams
Hey Jude C25fk 2958
SF Bay
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takokichi
Captain

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USA
321 Posts
Response Posted - 09/21/2004 :  11:46:21  Show Profile
Thanks for the feedback guys.

Catalina direct does have a kit. I'll investigate it.

If I go with two tangs it will definitely be with the wire block on the backstay routine rather than the yoke style adjuster. a million sport boats can't be wrong...
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 09/21/2004 :  15:18:40  Show Profile  Visit Frank Hopper's Homepage
two variations with the same hardware, the second is the current config. The sport boat config is great but has no redundancy. If I were starting from a single I might add the second tang, leave the originale backstay as is, swage an attachment point for a wire block 4 ft up the backstay, add the adjuster hardware like a sport boat. The saftey section (the old part of the backstay from the swage fitting to the original tang) will be limp most of the time but it will be there.
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takokichi
Captain

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USA
321 Posts
Response Posted - 09/22/2004 :  09:43:56  Show Profile
UPDATE - Went and looked at my CD catalog last night. Their kit is a sportboat style config. I think I'll do that with a leash to keep the rig up if it fails.

Thanks for the input.

Justin
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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.