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Rigging questions

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Bill Sloane
1st Mate

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USA
91 Posts

Initially Posted - 04/27/2005 : 16:15:00

Operating on the premise that there is no such thing as a dumb question, here are some questions:

1) The big screw at the end of the boom that has the hardware for the main sheet attached to it. Mine comes out on the thread about 1/2". Is that supposed too? Is there a way to tighten this screw?
2) My uplift wire (holds the boom up when no sail is there) has a pulley on the end of it. Am I supposed to have a way to adjust the length of the uplift when the sail is up? I have a new main with a high aspect ratio and full battens. The battens are catching on the uplift so I will have to loosen it when I sail. Also, looks like the back stay catches the battens. The sail maker warned me about that, and it is not as bad as the uplift. No adjustable back stay on my boat, yet. . . .

Bill

Suede Shoes C-25 SR/SK No. 496

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 04/27/2005 : 16:46:01

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Bill Sloane
 1) The big screw at the end of the boom that has the hardware for the main sheet attached to it. Mine comes out on the thread about 1/2". Is that supposed too? Is there a way to tighten this screw?<hr height="1" noshade id="quote"></blockquote id="quote">

On my boat, the screw that holds the tang at the end of the boom has about a 1/8" gap between its head and the boom. This is to allow the tang freedom of movement.

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Bill Sloane
 2) My uplift wire (holds the boom up when no sail is there) has a pulley on the end of it. Am I supposed to have a way to adjust the length of the uplift when the sail is up? I have a new main with a high aspect ratio and full battens. The battens are catching on the uplift so I will have to loosen it when I sail. Also, looks like the back stay catches the battens. <hr height="1" noshade id="quote"></blockquote id="quote">

Your topping lift setup sounds like mine. A line should be attached to the end of your boom then led up to the pulley suspended from the masthead then back down to the boom. From there it can be cleated off at the end of the boom or led forward along the boom to the cabintop.

This picture is from another recent topic called [url="http://www.catalina25-250.org/forum/topic.asp?TOPIC_ID=9113"]TOPPING LIFT[/url]

Photo courtesy of Frank Hopper

As for it interfering with the roach of the sail, yes, both the topping lift and backstay can interfere with the leech especially those sails with large roaches.

I slacken my topping lift so that it falls almost mid boom. This keeps it out of the way

I, too, was having problems with my battens hanging up on the backstay. For me the solution was to not hoist the mainsail all the way to the top, but rather leave it a few inches lower. This allowed enough clearance to prevent the battens from snagging on the backstay.

Edited by - dlucier on 04/27/2005 16:50:43

Lightnup
Master Marine Consultant

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USA
1016 Posts

Response Posted - 04/27/2005 : 17:01:51

The bolt on my boom-end piece is fully tightened meaning the tang doesn't move. Don's response makes me think that maybe I should loosen it. Is the tang supposed to move?

Bill, in anwswer to your question about how to adjust it, mine is secured to the boom end by two screws, one port and one starboard. Those can be removed to pull the end-piece off and then the nut can be adjusted on the bolt.

Steve

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ClamBeach
Master Marine Consultant

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3072 Posts

Response Posted - 04/27/2005 : 18:03:15

> "Is the tang supposed to move? "

Yes, otherwise when you sheet out you'll be putting twist (torque) on the boom itself, which is translated to extra stress at the gooseneck. The tang on my boom fitting was 'frozen' in position too.

In order to renovate mine, I had to remove the end fitting from the boom (drilling out the corroded-in-place screws). I cleaned all the corrosion off the aluminum fitting and replaced all the stainless with new. Be sure to use never-seize or lanocote (etc) on all the threads and aluminum/stainless interfaces.

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