340lbs upper, 300lbs lower shrouds.
Greg
26X Highest Shroud Tension
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dclark
- First Officer
- Posts: 418
- Joined: Mon Jan 05, 2004 10:35 am
- Location: Dave Clark - Orange County, CA - 2000 26X Day Tripper
Bruce also retracted that a few years later saying that his opinion was the Mac decking may not be strong enough for 10%-15%.
I've got mine at roughly 8% and it's tighter then any of the dozen or two Macs I've seen over te years. At 8% on a reach in a 10-15 kt wind, the lee side shrouds will go slightly slack. If you use turnbuckles and a loos guage you'll notice by the time you get to this point a small turn on the turnbuckle starts to make a big differance on the loos guage. I don't think it is possible to adjust the veneers at this tension without droping the mast back some, adjusting, and raising it again. That makes it really hard to pin the forestay again. Trying to make a fine adjustment this way requires far more time and patients then I have. Then if you trailer often it'll be a real pain to pin the forestay. Maybe not so bad if you can rig on the trailer, but if you need to go under a bridge and raise it on the water, then good luck to you and leave the furler at home.
I've got mine at roughly 8% and it's tighter then any of the dozen or two Macs I've seen over te years. At 8% on a reach in a 10-15 kt wind, the lee side shrouds will go slightly slack. If you use turnbuckles and a loos guage you'll notice by the time you get to this point a small turn on the turnbuckle starts to make a big differance on the loos guage. I don't think it is possible to adjust the veneers at this tension without droping the mast back some, adjusting, and raising it again. That makes it really hard to pin the forestay again. Trying to make a fine adjustment this way requires far more time and patients then I have. Then if you trailer often it'll be a real pain to pin the forestay. Maybe not so bad if you can rig on the trailer, but if you need to go under a bridge and raise it on the water, then good luck to you and leave the furler at home.
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Don T
- Admiral
- Posts: 1084
- Joined: Fri Jan 02, 2004 7:13 pm
- Sailboat: MacGregor 26X
- Location: 95 2600 "SS OTTER" - Portland OR - Tohatsu 50 - Hull#64 (May 95)
Hello:
I have mine at 8% also. However, after switching to stainless speaders I have not had the leeward shroud go slack. Last summer we were out in pretty stiff winds (20+knots) and the rig was very stable. When I tried to reach 10% tension it began to deform the hull sides. There was a flat spot around the chain plates that kept getting larger as I tensioned the shrouds. It felt just like over torquing a bolt.
I have mine at 8% also. However, after switching to stainless speaders I have not had the leeward shroud go slack. Last summer we were out in pretty stiff winds (20+knots) and the rig was very stable. When I tried to reach 10% tension it began to deform the hull sides. There was a flat spot around the chain plates that kept getting larger as I tensioned the shrouds. It felt just like over torquing a bolt.
Last edited by Don T on Wed Apr 27, 2005 3:03 pm, edited 1 time in total.
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Frank C
Entirely agree. The rule of thumb says 10 to 15%, but that's for the predominant type of sailboat, vastly different from ours. A traditional boat has beamwise bulkheads that can stabilize the hull and prevent deformation at the chainplates. That's not true of the 26X's wide open cabinscape ... pull those chainplates upwards too much and the rubrail will begin look like Laurel's suspendered waistband (or would that be Hardy's?).