Laser 28 - Excellent example of this great design Hamble le rice |
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Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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List classes of boat for sale |
RS800 spreaders |
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6661 |
![]() ![]() ![]() ![]() Posted: 29 Jul 12 at 10:25pm |
Track wobbles about a bit too doesn't it... It almost looks to me as if the goosneck is even more out of line as if the whole spar has twisted, but I find it hard to imagine that's possible. Must admit when I do spreaders I drill the holes for the second one in place so as to get them entirely symettrical as I'm not a good enough fabricator to do exactly even spreader brackets.
Think in this case you're just going to have to take the best compromise and juggle positions as much as you can to get things as even as practical. |
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CurlyBen ![]() Really should get out more ![]() Joined: 17 Aug 05 Location: Southampton Online Status: Offline Posts: 539 |
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Thanks Jim - unfortunately I can't check other boats at the moment as I don't have a club! I can cope with a bit of asymmetry, but this looks too much to me. I might have to try and rig up some way to measure the angle from mast to spreader. Unfortunately there isn't a lot of wiggle room - not many positions the spreader can take, and the class rules state that a line stretched from shroud to shroud should measure 150mm +- 10mm, which is not much movement at the root. The newer masts have a fixed spreader, unfortunately I don't think it can be fitted to these masts.
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RS800 GBR848
Weston SC |
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CurlyBen ![]() Really should get out more ![]() Joined: 17 Aug 05 Location: Southampton Online Status: Offline Posts: 539 |
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Hopefully now with pictures...
Spreaders from top Spreaders from bottom Bracket |
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RS800 GBR848
Weston SC |
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6661 |
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Make sure the mast cannot twist and is exactly straight. But .2mm probably multiplies into quite a bit at the end of a spreader. Probably the best thing to do is to check a bunch of other people's boats, because I bet none of them are exactly symmettrical...
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CurlyBen ![]() Really should get out more ![]() Joined: 17 Aug 05 Location: Southampton Online Status: Offline Posts: 539 |
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Right, I'm really scratching my head here.. After a couple of years where life really got in the way of sailing I'm trying to get my RS800 sorted out and back on the water. One of the jobs I needed to do was replacing the lower spreaders (Holt mast). I got the new ones from RS and cut them down to the same length as the old ones (on RS's advice, they were about 30mm too long as supplied) being careful to cut the outboard end so I didn't disturb the inboard end holes. Set them up according to the class rules and was happy.. until I sighted down the mast. The port spreader has significantly less deflection than the stbd (the stbd looks correct, as it's at pretty much the same angle as the upper spreader).
To try and sort the problem I've:
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RS800 GBR848
Weston SC |
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