| |  shroud tension #78965
07/02/06 04:41 AM 07/02/06 04:41 AM |
Joined: Apr 2006
Posts: 18 tikoes  OP
stranger
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OP
stranger
Joined: Apr 2006
Posts: 18
| How tight should the shrouds be? Is there a rule of thumb?
I can only set it at "discrete values", is it recommendable to use a set-up that allows more finetuning?
Tikoes
FX One 203
| | | Re: shroud tension
[Re: Berny]
#78968
07/02/06 07:34 AM 07/02/06 07:34 AM |
Joined: Jun 2001
Posts: 12,310
South Carolina Jake
Carpal Tunnel
|
Carpal Tunnel
Joined: Jun 2001
Posts: 12,310
South Carolina | No matter what you do, with any wind pressure, the leeward shroud is going to hang loose. We tighten ours with one person on the trapeze.
Jake Kohl
| | | Re: shroud tension
[Re: Berny]
#78970
07/03/06 07:56 AM 07/03/06 07:56 AM |
Joined: Jun 2001
Posts: 1,459
Annapolis,MD Keith
veteran
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veteran
Joined: Jun 2001
Posts: 1,459
Annapolis,MD | I've done too many repairs on boats that have been rigged too tight. Probably (should, anyway) goes without saying, but if folks store their boat mast up and run their rig tight they should take the tension off when the boat is not being sailed. My NACRA assembly manual specifically states this for my 6.0, but I'm surprised at how many people look at us funny when we put the tension on before sailing and take it off afterward. | | | Re: shroud tension
[Re: Berny]
#78973
07/03/06 12:47 PM 07/03/06 12:47 PM |
Joined: Jun 2001
Posts: 9,582
North-West Europe Wouter
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 9,582
North-West Europe |
So what can happen when you leave the tension on ?
Wouter
Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
| | | Re: shroud tension
[Re: PTP]
#78974
07/03/06 05:58 PM 07/03/06 05:58 PM |
Joined: Jun 2001
Posts: 12,310
South Carolina Jake
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 12,310
South Carolina | I leave my mast up with the normal tension I sail with. I keep thinking that I should release it but then wouldn't you do just as much damage if it is given just enough room to lightly slap back and forth? I saw an I20 a couple of weeks ago that had been sitting for a long time at a sailing club (years). The shroud pins had nearly worn through the chainplates in the hulls and lacked only about 1/16" of material.
Jake Kohl
| | | Re: shroud tension
[Re: PTP]
#78977
07/04/06 08:41 AM 07/04/06 08:41 AM |
Joined: Jun 2001
Posts: 12,310
South Carolina Jake
Carpal Tunnel
|
Carpal Tunnel
Joined: Jun 2001
Posts: 12,310
South Carolina | I think I do a good job of inspecting the rigging very frequently- just bought new shrouds and bridle stays (from the foil to the hulls) and redid one trap side. Also replaced the pins. I think I will probably make a habit in the future of loosening it by at least one pin hole after sailing.
The I20 you are talking about- I doubt you pulled on anything- but was the rig tight? or was it from flopping around. The rig was very sloppy - but reportedly had been tight at one time.
Jake Kohl
| | | Re: shroud tension
[Re: Keith]
#78978
07/04/06 05:27 PM 07/04/06 05:27 PM |
Joined: Nov 2005
Posts: 337
Victoria, Australia C2 Mike
enthusiast
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enthusiast
Joined: Nov 2005
Posts: 337
Victoria, Australia | I've done too many repairs on boats that have been rigged too tight. Probably (should, anyway) goes without saying, but if folks store their boat mast up and run their rig tight they should take the tension off when the boat is not being sailed. My NACRA assembly manual specifically states this for my 6.0, but I'm surprised at how many people look at us funny when we put the tension on before sailing and take it off afterward. I strongly disagree with that. Letting the mast flop around in the wind is inviting disaster. A Taipan 4.9 did exactly that which eventually caused a shroud to break and the mast came crashing down (1 dead mast). Also, tie the rotator spanner off so that the mast cant oscillate (sp?) back and forward in a blow. Tiger Mike | | | Re: shroud tension
[Re: C2 Mike]
#78979
07/05/06 12:30 PM 07/05/06 12:30 PM |
Joined: Jun 2001
Posts: 1,459
Annapolis,MD Keith
veteran
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veteran
Joined: Jun 2001
Posts: 1,459
Annapolis,MD | I've done too many repairs on boats that have been rigged too tight. Probably (should, anyway) goes without saying, but if folks store their boat mast up and run their rig tight they should take the tension off when the boat is not being sailed. My NACRA assembly manual specifically states this for my 6.0, but I'm surprised at how many people look at us funny when we put the tension on before sailing and take it off afterward. I strongly disagree with that. Letting the mast flop around in the wind is inviting disaster. A Taipan 4.9 did exactly that which eventually caused a shroud to break and the mast came crashing down (1 dead mast). Also, tie the rotator spanner off so that the mast cant oscillate (sp?) back and forward in a blow. Tiger Mike Don't make it loose enough to flop. Definitely don't want that. Just don't want the full-on tension you sail with. Even a tight rig will flog in a breeze if you don't lock the mast rotation.
Last edited by Keith; 07/05/06 12:32 PM.
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