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 Play in Forestay?		  New Topic  Topic Locked
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Cbucki1
1st Mate

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USA
47 Posts
Initially Posted - 06/10/2008 :  22:40:18  Show Profile
Hey Folks,

I have a great roller furling unit that came with the boat.

I have put up the mast, and tunded the rigging to the best of my ability.

I am wondering how much play (ie how loose) the forestay and roller furling should be. I have cranked the backstay as much as it can possibly be tightened, yet am still concerned with the amount of play in the forestay/roller furling.

Any insights?

Thanks!

CB
chuck buck
Summit Oasis
78 Catalina 25
Denver Colorado
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 06/11/2008 :  06:20:36  Show Profile  Visit Frank Hopper's Homepage
I have my forestay tight and use the backstay to make it even tighter in heavy wind. I think most furlers operate better with the extrusion in column.
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cat1951
Admiral

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USA
636 Posts
Response Posted - 06/11/2008 :  06:49:43  Show Profile
At rest, mine has a fair amount of play in it. I keep the backstay and forestay with less tension when I am not sailing. Like Frank, when I am sailing, I tighten both backstay whioh adds tension to the forestay as is necessary to get good sail shape.
Edited by - cat1951 on 06/11/2008 06:51:08
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 06/11/2008 :  08:40:28  Show Profile
Chuck: How much play is it that you're concerned about? In a good breeze, if you sight along the mast and forestay, how much of a bow (displacement at the midpoint) do you see? That's the primary issue.
Edited by - Dave Bristle on 06/11/2008 08:44:37
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Cbucki1
1st Mate

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USA
47 Posts
Response Posted - 06/11/2008 :  11:11:19  Show Profile
Dave,

there is significant bow in the roller when at the dock - when sailing it tends to tighen up (without me having to tigthen the back stay)

Thanks,
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aeckhart
Master Marine Consultant

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USA
1709 Posts
Response Posted - 06/11/2008 :  12:01:39  Show Profile  Visit aeckhart's Homepage
Two issues may be involve if you've tightnened that backstay as much as you can. First, your forstay may need to be tightened as well. You may not be able to tell unles you remove the drum. Second, it's possible that your aging stays are stretched and need replacing.
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millermg
Navigator

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159 Posts
Response Posted - 06/11/2008 :  13:05:04  Show Profile
You may want to check your lower shrouds- if your backstay is fairly tight but your forstay remains loose, your forward lower shrouds may be too tight to allow the mast to move back and tension the forstay. C-25's don't have a terribly flexible mast.
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JimB517
Past Commodore

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USA
3285 Posts
Response Posted - 06/11/2008 :  13:07:20  Show Profile  Visit JimB517's Homepage
When the backstay is on tight the forestay should be very tight. No sag means a boat that points well. When the backstay is off the forestay should be wagging around like a limp noodle - 4 to 6 inches of play. Lots of sag means a boat that goes downwind well.

Set the forestay tension with the backstay medium and the lowers slack. Then tension the backstay. The mast will bow. Ease the backstay a little and adjust the lowers to pull out the bow. Verify that with the backstay off the forestay is quite loose.

When sailing in a good wind the leeward shrouds should be slack but not loose, there should be no visible sag in the forestay.

Frank's advice is good for an inland lake with winds routinely above 30.

Mine is better for winds usually 10 to 15, and I copied from the master, Steve Milby.
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JimB517
Past Commodore

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USA
3285 Posts
Response Posted - 06/11/2008 :  13:08:06  Show Profile  Visit JimB517's Homepage
Oh yeah, when rolling or unrolling the jib have the backstay on.
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 06/11/2008 :  18:24:49  Show Profile  Visit Frank Hopper's Homepage
Absolutely, my comments are always predicated on the presumption of high wind, I rig for an average of 20 mph, if I sailed Canyon lake I would do exactly what Derek does. We have been blowing in the forties today, and it might get windy tomorrow. If I were on the water today I would be running about 40-60% headsail and nothing else.
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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.