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Isis View Drop Down
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Posts: 2753 		Post Options Post Options   Quote Isis Quote  Post ReplyReply Direct Link To This Post Topic: Mainsail Centre Sheeting
    Posted: 22 Jan 06 at 7:56pm
Moths are great for roll tacking in light winds...

My average tack can involve anywhere up to about 400 degrees of roll, sometimes more if im really working at it and the water is deep enough
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les5269 View Drop Down
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Posts: 1530 		Post Options Post Options   Quote les5269 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 7:42pm
Laser 5000 seems to work ok  ish

Edited by les5269
49er 531 & 5000 5025 and a mirror(now gone to mirror heaven)!

Grafham water Sailing Club The greatest inland sailing in the country
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Isis View Drop Down
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Posts: 2753 		Post Options Post Options   Quote Isis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 6:35pm
Originally posted by Calum_Reid

aaahhh damn Short 'n' Snappy is gona be crap to roll tack then! Eh Ben


B cks to that... best hope for wind then!
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Posts: 1146 		Post Options Post Options   Quote Prince Buster Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 6:29pm
Wide stern, narrow nose seem to be the best designs for roll tacking.  N12, Merlin Rocket, RS200/400 .
international moth - "what what?"
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Calum_Reid View Drop Down
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Posts: 59 		Post Options Post Options   Quote Calum_Reid Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 6:20pm
aaahhh damn Short 'n' Snappy is gona be crap to roll tack then! Eh Ben
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allanorton View Drop Down
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Posts: 228 		Post Options Post Options   Quote allanorton Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 6:09pm
Soft/no chines, un-cluttered cockpit & lots of freeboard seem to make for good roll tacking.
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Isis View Drop Down
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Posts: 2753 		Post Options Post Options   Quote Isis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 5:30pm
N12   10
Modern Cherub 1


Id agree in principle but im bored so just to be dificult i'll bring up the Big Issue design
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JimC View Drop Down
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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 3:57pm
It would be an intersting exercise to mark boats out of 10 for "roll tackiness" and then look for common factors. Start with this list of two handers with my markd

Enterprise 10
N12   10      & nbsp;
RS200 9
RS400 8
Merlin 8
Fireball 7
Laser 4k 4
420    7
505    6
29ER    4
Modern Cherub 1
49er 1

then when enough folk have scored the boats we can look for commom factors. If you don't have a mrk or one boat leave it, I'll work out an average...

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Stefan Lloyd View Drop Down
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Posts: 1599 		Post Options Post Options   Quote Stefan Lloyd Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 11:53am

Originally posted by Hector

I was in Winders the other day and was suprised at just how flat the underwater section of their Merlin is. It still rolls well though - partly because although flat its so narrow that there's little resistance to rolling it.

I think you are correct in saying it is the narrow waterline that is key. In terms of the section, most designs are rounder towards the bow but flatter towards the stern for early planing. 

 
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Guest View Drop Down
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Posts: 0 		Post Options Post Options   Quote Guest Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 06 at 10:47am

The 200 is way easier to roll tack than the Fireball ...

Rick

Originally posted by Hector

Rick -  I generally agree with most of what you say but then you usually don't just make statements with no reasoning!

I didn't say RS200s didn't roll well, but I still say they require a quite refined technique whereas in comparison, the Fireball doesn't.

 

That statement was based on experience, no analysis just quite a bit of time in both classes.

Rick



Edited by Guest#260
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