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Catalina/Capri 25/250 Sailor's Forums

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TALL RIG BOOM CLEARANCE

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lcharlot
Master Marine Consultant

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Antigua and Barbuda
1301 Posts

Initially Posted - 05/18/2009 : 18:57:48

Has anyone with an '88-'90 Tall Rig measured their boom clearance? I am trying to see what kind of bimini I might be able to install. On "Quiet Time", the gooseneck is bolted directly to the mast and can't be slid up, so shortening the sail so as to raise the boom a few inches, which can be done on early-model Tall Rigs with the sliding gooseneck, is not an option for me. I am looking for the minimum clearance from bottom of boom to top of cockpit coaming with the main sheeted in tight. I won't have a chance to visit my own boat and measure it nyself until next weekend, so hoping someone has measured theirs so I can start shopping tomorrow. I have seen a Bimini that is 6' long with a rise of 36", or a 5' model with a rise of only 30" - maybe one of these will work.

Larry Charlot
Catalina 25WK/TR Mk. IV #5857 "Quiet Time"
Folsom Lake, CA

"You might get there faster in a powerboat, but in a sailboat, you're already there"

Edited by - on

dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 05/18/2009 : 19:49:32

As stated on another thread, it depends on your preference, i.e. where you want to mount it: on the coamings, on the deck outside the coamings, or on cars on the genoa tracks, assuming yours are on the outer edge.
I have a 1984 TR, with a movable gooseneck, and a 36" tall 6 ft long bimini, mounted on the deck outside the coamings which works on our boat. With my sail fully hoisted, the gooseneck stops just below the mast gate. See pic below.
Once you decide where you want to mount it, you'll need to measure the width. If you want to mount it on top of the coamings, I suspect a 30-32" height will be maximum.
It might help to search other threads on this subject.

Edited by - dmpilc on 05/18/2009 22:35:12

redeye
Master Marine Consultant

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3476 Posts

Response Posted - 05/19/2009 : 03:41:59

Cut the bolts on the gooseneck. I can't imagine a boom that can't be adjusted at the mast. (I don't get out much)

regards.ray

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 05/19/2009 : 05:39:30

Not so easily done. My friend's Capri 26 has a fixed boom. The whole mechanism is different. He'd have to replace the fitting. From what I've experienced, it actually works quite well, no downhaul needed, just a cunningham to adjust luff tension.

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redeye
Master Marine Consultant

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3476 Posts

Response Posted - 05/19/2009 : 07:11:09

Ohhhhh.... Now I see... I'd never understood as all the boats I'd used had adjustable booms. All my sailing life I'd been saying what's the difference between a downhaul and a cunningham.

That's the great thing about sailing, you just keep learning.

Thank You!

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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts

Response Posted - 05/19/2009 : 07:16:48

Whatever the measurement is (sorry), get a frame that's slightly taller than that, put it in place, and then figure out how much to cut off the feet of the main bow to get it just right--including sail cover clearance (topping lift hitched up), boom and mainsheet clearance (TL down), visibility over and under, etc.

Edited by - Dave Bristle on 05/19/2009 07:18:02

Daren
1st Mate

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USA
81 Posts

Response Posted - 05/19/2009 : 07:21:57

I had to install a 5' bimini and put the boom under it!

Edited by - on

sfsmith
Navigator

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USA
123 Posts

Response Posted - 05/19/2009 : 07:25:39

Larry, I don't know the boom clearance offhand. But I solved the same problem by removing the fixed gooseneck and replacing it with a sliding one that fits into the sail track on the mast. I got it from Catalina Direct. The fixed gooseneck was held on with screws, so the change is not irreversable. The sliding gooseneck is held in place by sail track stops, one below and one above. The sail was shortened by about 10 inches, so clearance is much better now. I have to feed in the sail slugs before positioning the boom, since the opening in the sail track now is below the boom. But this system has worked out great for me. Good luck.

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dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 05/19/2009 : 07:29:17

Ray,
Here's a pic of a fixed boom setup. The bracket attaches to the boom with several pop rivets or screws on each side, there's a middle piece that connects to the bracket like a door hinge, allowing it to swivel side to side, then the fitting on the end of the boom that attaches to the middle piece.

Edited by - dmpilc on 05/19/2009 07:34:08

dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 05/19/2009 : 07:38:42

If you mount the bimini on top of the coamings, it will be easier to walk around it to go forward or the get on/off the boat. If I had it to do over again, I would do that or get one wide enough to mount on genoa track cars.

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redeye
Master Marine Consultant

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3476 Posts

Response Posted - 05/20/2009 : 06:31:08

I thought it might have been attached with the aluminum rivets. So you could dremmel off the top of the rivets pretty easily. Purchase a new gooseneck and you'd have an adjustable boom.

Edited by - on

dmpilc
Master Marine Consultant

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USA
4593 Posts

Response Posted - 05/20/2009 : 12:55:11

That's about it, although you can probably remove pop rivets with a drill if you don't have a dremel tool. If you don't have one on the mast already, You will also need a cleat in the slot below the boom for the downhaul line, and a sailstop for under the gooseneck to stop it an inch or so above the cleat when you drop sail.
I don't know if the boom-end fittings are interchangeable, you might have to replace the whole unit. From the Catalina direct online catalog, boom fittings with sliding gooseneck and with fixed gooseneck:

Edited by - dmpilc on 05/20/2009 14:50:57

Dave5041
Former Mainsheet Editor

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USA
3758 Posts

Response Posted - 05/20/2009 : 14:24:46

It's easier to remove pop rivets with a drill than a dremel. Use a bit a little smaller than the rivet and when it cuts hrough the top of the rivet you're done. A little ring of the top of the rivet will probably ride up the bit when you're through. No damage to the underlying part.

Edited by - on

NautiC25
Admiral

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USA
957 Posts

Response Posted - 05/20/2009 : 15:13:13

^^^I was going to say the same, easier to drill.

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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.