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Topic: Boom/Mainsheet Strops |
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timtudor |
Posted: 25-May-04 10:22 |
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Hi,
I need to find out where i can purchase the topper mainsheet strops. At present the blocks are just riveted to the boom. Wet and windy dont seem to sell them and i was wondering if any one could advise.
Thanks
Tim |
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Ian Keam_George |
Posted: 25-May-04 13:18 |
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You can buy them off Topper call Nancy Aird on 01233 629186 or if they don't have any in stock then it would be a case of getting your local sailmaker or chandler to run a couple up.
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tasarhans |
Posted: 21-Dec-05 10:21 |
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Hi Folks,
As long as it's not freezing, I am excercising our new ISO 788.
In between thinking and dreaming about planing at full speed in the burning sun 
Our ISO had the main sheet blocks popnailed on the down side of the boom (not good I read). Is there any special reason not to use simple Dyneema line (like some Harken blocks do) wrapped around the boom (3 times or so) and fix it to the original fitting so that the strop keep in the right place?. Why the tailormade strops (expensive and not for sale in Holland)
Same for the vang.. is the original system (popnailed on the topside of the boom)Is it known for breaking the boom?
Another question:
I am quite tall and specially in light wind there is little space between rudder(helmstick) and the mainsheet. I read there was a lot of fuzz about sheeting systems (sternsheeting versus standard) The resulting space with sternsheeting is very appealing. When sternsheeting isn't allowed is is a good idea to cut about 10cm off the helmstick to gain some extra space??
Hans ISO 788 |
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mmoncia |
Posted: 21-Dec-05 11:06 |
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Hi Hans,
looks like you'll really be in a good shape this summer in La Rochelle...
Regarding fixing the main sheet blocks under the boom with dyneema strops, i did it both on my Iso and my brother buzz and it did work well. Unfortunately I have no pictures to send you but I'm sure there is plenty of ways you can realize it.
What I did was using a single strop to tighten both blocks, and then when you move one block away from the other close to the original fittings, the strop gets tight and keep them on the boom.
when I purchased my boat i found the boom being bent where the kicker starts from the boom. I asked to a sailmaker to sew a nylon strap (not more than 10 Euro) that then I wrapped around the boom.
I'll try to take some picture the next time I'll see the boat (when the weather will be warmer...) and post them on the italian iso-web (currently www.moncia.it/sail/iso/, www.isoracing.it in the near future)
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Ian Moss |
Posted: 21-Dec-05 13:07 |
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The 'tailormade strops' are because all booms come from a single manufacturer as the boat is a one class design. Although technically at the moment it could be deemed not class legal to use anything else other the original part, if you did enter a race I can say for sure you will be allowed to use a home made strap as long as they hold the blocks in the same position.
I have seen the boom break at the main sheet rivets but never at the kicker one!
Stern sheeting is not allowed under current rules but the tiller is unrestricted so you can use what you want, at whatever length you want.
Ian Moss
ISO 1207
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Bob Ladell |
Posted: 21-Dec-05 22:57 |
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The fleet sponsors - Cousin Trestec - do some 50mm wide Spectra webbing - PEWP050
Click on the link on the home page or ring +44 (0) 1823 431885
Booms that have two stainless loops riveted under the boom are the original type. They need re-riveting every couple of years as the strain makes them loose but are otherwise just fine. I see no reason to spend the time changing mine.
New style booms have the webbing for main sheet and kicker both riveted on top. After a lot of use the webbing simply wears out. As Ian says, can't see anyone objecting to alternative webbing - especially as the rules allow different materials to be used to effect a repair.
I've sailed both versions and have no preference between them.
Cheers
Bob
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tasarhans |
Posted: 22-Dec-05 10:45 |
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thanks for the advise...
Helmstick... tiller is the better word..:)
Is it changed often? especially to give the helm a bit more space at the cost of a bit more heavy steering?
La Rochelle:
At the moment we are finding out the way an ISO works,
a lot more stable, a bit less subtle than a Tasar, but now trapeze and gennaker and a lot more lines in the boat and a lot more fun.
We are clubracers, but eager to sail one design regatta's, than seems to give good fun (as long we avoid drinking with Mike and Pete  )
In Holland skiff sailing is not popular but there is an initiative of training and racing together (Skiff handicap racing)where we practise.
We'll enjoy wathing alle de ISO sterns at la rochelle.
Hans
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tasarhans |
Posted: 22-Dec-05 12:56 |
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Thinking about the main sheet strops (Hull side): In the topic http://www.isoracing.org.uk/iso_guides/isotweaks/strops.htm
the lengt is made adjustable depending on vang tension... Is it allowed to put a little block on the hull eye? Ropes wearin this eye and probably adjusting the length will go pretty heavy (thoughj one wil not adjust it when under load.
IE is ther a rul that prevent extra blocks so there are solutions given that will wear?
Same the case with the tweak of the outhaul on the boom.... http://www.isoracing.org.uk/iso_guides/isotweaks/outhaul.htm why not a little block.. so it will function much smoother... otherwise the given tweaks works as an extra purchase as well (though inferior)
hans
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Bob Ladell |
Posted: 22-Dec-05 16:04 |
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Hi Hans
Take a closer read of the rules - you will find that you are allowed to add blocks - and purchase if you want.
Strops - yes you can add a block to the hull eye - it stops the rope wearing through although this takes several years to do so.
On the outhaul you will find that you don't need the block - the purchase on the tweak shown works very well as it is.
Make a point of coming to La Rochelle - the Pro-Am we run helps everyone all through the fleet a lot. You will learn at least as much at the bar as you do on the water.
BTW - Pete and Mike have given up drinking - poor old guys can't take the pace any more ( so rumour has it )
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