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Mainsheet bridles

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PeterV View Drop Down
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    Posted: 22 Jan 15 at 12:30pm
The Laser is a bit different.  Before the new kicker came in the sheeting angle couldn't be adjusted, if the bridle was eased the angle reduced but then it was too narrow, so the bridle was always tight.  Since the new kicker it's been possible to tighten the kicker and ease the main, increasing the sheeting angle whilst still keeping a flat sail and this has allowed more efficient sailing in stronger winds.
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JohnJack View Drop Down
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Post Options Post Options   Quote JohnJack Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 15 at 12:23pm
It works a bit differently on the Laser IMHO. 
Before the new kicker arrangement you would to some extent control mast bent with the main sheet (maybe this is an un-stayed rig thing).
Upwind is always block to block bending the mast as much as possible
(probably a bit different now there is sensible purchase on the kicker).

The Laser rig is also pretty unsophisticated and I don't think the same level of thought was put into it as the likes of the Zero, Aero, Blaze etc etc (modern boats).

Also being a strict One Design, not much changes quickly (eg the sail) 
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Woodbotherer View Drop Down
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Post Options Post Options   Quote Woodbotherer Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 15 at 9:41am
Originally posted by Do Different

Probably floating would be best, very rarely does a mono rig need sheeting to the centreline. Centre lining the boom may possibly give the feel of pointing high but is usually slower and perhaps even result in a lower course because even though the boat is pointing high the foils are moving so slowly they are stalled and making lots of leeway.   

I think this is what happens. I fixed a pulley block centrally on spectra line tied off to the ends of the rack tracks. When I saw the Punk I was going to try and fashion something along the lines of that but in the end a nasty clew first stack and  the nose of the boat somehow getting between the boom end sheet and the stern convinced me after a nightmare trying to sort it all out in the water, to go back to centre sheeting.
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RS400atC View Drop Down
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 15 at 8:13pm
Don't contenders use a block floating on the bridle?
I think there is a balance between allowing independent control of sheeting in and leach tension, vs wanting to control both together?
As you ease the sheet in a gust, you want to allow a little more twist?
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craiggo View Drop Down
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Post Options Post Options   Quote craiggo Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 15 at 7:52pm
Take a look at the Musto Skiff. It has a floating block on a loose bridal. RS700 has a fixed centre bridal. Both work although I've never tried the skiff style setup on the 700 to see if it makes a difference.
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Do Different View Drop Down
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Post Options Post Options   Quote Do Different Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 15 at 7:31pm
Probably floating would be best, very rarely does a mono rig need sheeting to the centreline. Centre lining the boom may possibly give the feel of pointing high but is usually slower and perhaps even result in a lower course because even though the boat is pointing high the foils are moving so slowly they are stalled and making lots of leeway.   
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Post Options Post Options   Quote pondlife1736 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 15 at 6:42pm
I can but try I suppose. It looks temptingly easy to use the outer fixings on the wing rear tracks; they are more or less level with the end of the boom. No need to drill holes in the boat.
Floating pulley or centre pinned bridle though??
Another bonus is I have to fold the t/extension backwards when tacking as it's too long to clear the centre main. A small point perhaps, but irrationally annoying........!
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Woodbotherer View Drop Down
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Post Options Post Options   Quote Woodbotherer Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 15 at 4:36pm
I rigged my EPS off a rear bridle for the same reason you state, having to go round the back and digging the stern in, tacking isn't the speediest thing an EPS does at the best of times.

But, I've gone back to centre sheeting but with a traveller I fashioned out of garden hose to keep all that gubbins from getting caught round the mainsheet block and tower.

The reason I didn't like it was because the sheer weight of all the main sheet especially in light airs, made keeping the sail sheeted out or forward when trying to run by the lee. I also suspected that I was choking the sail by over sheeting upwind, difficult not having another EPS to sail alongside, but my performance against Lasers and Roosters is pretty measured and I didn't fair anything like as well as I do now, with rear sheeting.

And the rope doesn't get tangled with the wiggle stick anything like as often as it did when it was all down the back.


Edited by Woodbotherer - 21 Jan 15 at 4:42pm
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jeffers View Drop Down
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Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 15 at 4:23pm
The Blaze (when I had mine) you had a floating block on the bridle but had stop knots to limit how far along the bridle the block could go.

They now allow a rear bridle which gives far better control and allows for off the boom sheeting (meaning you can keep your weight much further forward). The D-Zero does not seem to sink the transom in my experience and you can pass through the gap 'Laser style' should you need to.
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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: 21 Jan 15 at 3:51pm
The fixed position for the bridle with vang sheeting was originated in the late 70s, I believe by NZL 470 sailors, but it didn't become widespread until much much later. It might well be simply that it wasn't mainstream enough for the EPS development team.
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