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Laser woes.

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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Topic: Laser woes.
    Posted: 20 Apr 23 at 12:16pm
Laser radial, sails well on starboard, move to port and speed drops right off, boat needs constant rudder to keep it in a straight line. Several people have tried it, does exactly the same?
Robert
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Post Options Post Options   Quote PeterG Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 1:27pm
I'd start by checking rudder in line? C/B in line? Mast post in line?
Peter
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 1:29pm
Not many options on a Laser... I'd try a different rudder and centreboard first as it should be easy enough to borrow one of each.
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Post Options Post Options   Quote GybeFunny Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 1:40pm
Laser mast rakes are all over the shop, stick a full rig bottom section in the hole and measure between the back of the bottom mast and the bottom of the transom lip in the middle, it should be 3815mm ish. Also check the distance from top of mast to each back corner and maybe some other point on either side to see if the mast pot is straight.

Turn boat upsidedown and fit centreboard and rudder, sight from front and rear and check that they are aligned.
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 2:00pm
One explanation I heard, there are steel rods in dagger board and it could be bent, never heard of this before.
Robert
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Post Options Post Options   Quote fab100 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 3:26pm
How about sailing it backwards on port?

I'll get my coat...
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 3:35pm
Been backwards many times
Robert
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 3:39pm
There are certainly steel reinforcing rods in the board. The matrix is pretty brittle though, I'd be surprised if it could bend much, but warped daggerboard is the first thing that occurred to me with the symptoms. As well as trying someone else's foils in that boat try those foils in another boat.
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 23 at 4:27pm
I suppose with a gentle curve and the shape of the dagger board you would get unwanted lift, advantage one side to the other.

Edited by 423zero - 20 Apr 23 at 7:34pm
Robert
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 23 at 10:04am
Had another look, it appears the deck is detached from the hull on port side, I think the boat is actually distorting, you can easily push the hull inwards.
Foils looked ok when compared to others.
Robert
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