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Boats for sale
| Laser 28 - Excellent example of this great design Hamble le rice |
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| Laser 140101 Tynemouth |
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| Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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List classes of boat for sale |
weather helm |
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Calum_Reid 
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Joined: 09 Apr 04 Location: United Kingdom Online Status: Offline Posts: 59 |
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 Topic: weather helmPosted: 07 May 07 at 10:47pm |
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U can feel leehelm in most boats with the kite oversheeted (or main undersheeted) and the boat flat. Even with the rudder right down. Maybe i class a tiny bit as way to much but lee helm horrible.
Edited by Calum_Reid |
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redback
Really should get out more 
Joined: 16 Mar 04 Location: Tunbridge Wells Online Status: Offline Posts: 1502 |
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Posted: 07 May 07 at 10:43pm |
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Actually you'll find if the blade is not fully down you will also get leehelm amplified. So try sailing the boat very flat with the kite oversheeted, on a 4000 that produces leehelm. If the blade isn't right you'll be bearing away big time!
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m_liddell
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Joined: 27 May 05 Location: United Kingdom Online Status: Offline Posts: 583 |
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Posted: 07 May 07 at 4:03pm |
Truth. This is why daggerboard style rudders are good. I have an RS800 rudder on my 14. I always pull the blade down with my hand and then do up the plastic wing nut thing, then I cleat the downhaul. Just using the downhaul means that the rudder blade can move back slightly since the rope moves back a bit as it cleats harder. |
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Calum_Reid
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Joined: 09 Apr 04 Location: United Kingdom Online Status: Offline Posts: 59 |
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Posted: 07 May 07 at 3:57pm |
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Thats another RS one. The hole the rudder bolt goes through gets elongated and then all sorts of weird and wonderful things happen. We filled the 400's rudder up re drilled the hole and put a more hard wearing bush in to make a bit better.
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redback
Really should get out more
Joined: 16 Mar 04 Location: Tunbridge Wells Online Status: Offline Posts: 1502 |
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Posted: 07 May 07 at 3:50pm |
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I'm sure it was 1 of 2 things. 1. you weren't sailing the boat as flat as you were in the morning. 2. the rudder was not quite right down. You'd be surprised how even the smallest change of angle here makes a huge difference. When I first had my Laser 4000 I experimented and found the thickness of a double layer of PVC tape on the abutment of the rudder made a huge difference to the feel of the helm. The abutment is the part of the blade which stops the blade from going down any further. Having discovered this I always make the rudder come down hard enough to make an audible clunk - if it doesn't I put it back up and have another go - its the only way to get a consistent feel to the helm. Alternatively it is just possible the hole that the bolt goes through is oversize.
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Worthy
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Joined: 07 Dec 05 Location: United Kingdom Online Status: Offline Posts: 511 |
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Posted: 06 May 07 at 11:35pm |
Years ago in the Hobie 16 I got a similar stress fracture on the rudder and I got unmentionable weather helm. Water had managed to seep in throught the crack and soften the blade internally which made in flex under load. The only solution was to buy a new rudder. When it was in the water being used you could see the flex, but when it was on the shore you couldn't put enough load on to see any flex. Sounds like a similar issue to what you have. Edit: You could borrow a friends rudder to see if it is the rudder that is causing the problems. Edited by Worthy |
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Calum_Reid
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Joined: 09 Apr 04 Location: United Kingdom Online Status: Offline Posts: 59 |
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Posted: 06 May 07 at 10:27pm |
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You say that but it needs to be right down on rs boats or they can be unsailable. its rediculous the difference.
Edited by Calum_Reid |
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radixon
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Joined: 27 Oct 06 Location: United Kingdom Online Status: Offline Posts: 2407 |
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Posted: 06 May 07 at 10:15pm |
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Mike said it was down in his post. Another thought, when you said you checked, could it of got something wrapped around it or was that what you were checking? |
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Calum_Reid
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Joined: 09 Apr 04 Location: United Kingdom Online Status: Offline Posts: 59 |
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Posted: 06 May 07 at 9:34pm |
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was your rudder right down? thats the usual one
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elmo
Newbie 
Joined: 31 May 04 Online Status: Offline Posts: 31 |
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Posted: 06 May 07 at 9:30pm |
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Something must have changed between the first and second races!
Are you sure you have put the rudder together right? With RS rudders if you don't put the downhaul over the top of the metal posty bit (sorry bad description) in the stock then they won't stay down properly. So maybe would be fine the first race then if you hit a gust and there was more pressure it would start popping up? Maybe nothing but I have cursed the rudder (and my sore arm) with that sort of thing before. |
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