Rig Tension - Amount of purchase required?
Rig Tension - Amount of purchase required?
Hi All,
New to International Canoes and having bought one a couple of months ago and sailed it a few times, its time for some changes over the winter. Currently the rig tension is applied through the forestay and I'm looking to make the shrouds adjustable on the water so I can release them offwind. My question is, what sort of purchase do I need for workable system? Also, what sort of travel do I need ie how much do the shrouds need to be released to be effective?
Thanks in advance!!
Chris G
New to International Canoes and having bought one a couple of months ago and sailed it a few times, its time for some changes over the winter. Currently the rig tension is applied through the forestay and I'm looking to make the shrouds adjustable on the water so I can release them offwind. My question is, what sort of purchase do I need for workable system? Also, what sort of travel do I need ie how much do the shrouds need to be released to be effective?
Thanks in advance!!
Chris G
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- Posts: 268
- Joined: Sat Feb 02, 2008 12:24 pm
- Location: Plymouth, Devon, UK
Re: Rig Tension - Amount of purchase required?
I have 15-1 on my boat, But anywhere in the 12-1 to 18-1 range should work
________________________
Chris Hampe
GBR 340 Monkey's Uncle
Chris Hampe
GBR 340 Monkey's Uncle
Re: Rig Tension - Amount of purchase required?
Thanks Chris. Struggling to find pictures.
This looks like 4:1 on a 3:1 so 12:1?
http://www.c12performanceboats.co.uk/im ... 20seat.jpg
Chris G
This looks like 4:1 on a 3:1 so 12:1?
http://www.c12performanceboats.co.uk/im ... 20seat.jpg
Chris G
Re: Rig Tension - Amount of purchase required?
Found this old thread. 18:1 or 24:1 with 150mm to 200mm travel? Seems about right? Also suggests the HK313 38mm wire blocks. I was thinking the 25mm versions HK300 or Seldon, Allen, Seaside equivalent?
viewtopic.php?f=9&t=558&start=15
viewtopic.php?f=9&t=558&start=15
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- Posts: 268
- Joined: Sat Feb 02, 2008 12:24 pm
- Location: Plymouth, Devon, UK
Re: Rig Tension - Amount of purchase required?
Better to use low friction rings on the first part if tje purchade at the shroud ends in my opinion. The 1" wire blocks are too close to the limit. Are you in the Canoe facebook group: facebook.com/groups/sail.ic
Its easier to post pics there and is much more active than this forum
Its easier to post pics there and is much more active than this forum
________________________
Chris Hampe
GBR 340 Monkey's Uncle
Chris Hampe
GBR 340 Monkey's Uncle
Re: Rig Tension - Amount of purchase required?
Don't do the Facebook thing but I have had a browse there. Assume you could email pictures from here? Many of the links on here don't work anymore it seems.
C
C
Re: Rig Tension - Amount of purchase required?
Ha ha. Seems not able to email pictures. Just tried it.
C
C
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- Posts: 268
- Joined: Sat Feb 02, 2008 12:24 pm
- Location: Plymouth, Devon, UK
Re: Rig Tension - Amount of purchase required?
I managed to get down to the boat park and take some pictures of my shroad adjustment setup:- https://photos.app.goo.gl/5WuiVA9k4CkRZwrP7
________________________
Chris Hampe
GBR 340 Monkey's Uncle
Chris Hampe
GBR 340 Monkey's Uncle
Re: Rig Tension - Amount of purchase required?
Thanks Chris - looks like 5:1 on 3:1 so 15:1 overall?
Chris G
Chris G
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- Posts: 268
- Joined: Sat Feb 02, 2008 12:24 pm
- Location: Plymouth, Devon, UK
Re: Rig Tension - Amount of purchase required?
Yes 15-1, Ok most of the time but tough to pull on when windy, But in those conditions I tend not to ease the shrouds off anyway.
When you look at what actually gets eased on the shroud end All you are doing is releaseing tension in the leeward shroud to allow the mast to stand more upright. I dont suspect there is any canoe as presently rigged that is set to ease the shrouds enough to square the boom off downwind as you might do in boats such as a natioanl 12. Part of the reason is due to the canoes narrow shroud base which tends to result in a compromise of having the shrouds further aft compared to other classes, thus limiting boom squaring downwind.
Personaly I think we will soon be transitioning to hotting angles downwind as we continue to develop our rigs in the hunt for more power.
When you look at what actually gets eased on the shroud end All you are doing is releaseing tension in the leeward shroud to allow the mast to stand more upright. I dont suspect there is any canoe as presently rigged that is set to ease the shrouds enough to square the boom off downwind as you might do in boats such as a natioanl 12. Part of the reason is due to the canoes narrow shroud base which tends to result in a compromise of having the shrouds further aft compared to other classes, thus limiting boom squaring downwind.
Personaly I think we will soon be transitioning to hotting angles downwind as we continue to develop our rigs in the hunt for more power.
________________________
Chris Hampe
GBR 340 Monkey's Uncle
Chris Hampe
GBR 340 Monkey's Uncle