Laser 140101 Tynemouth |
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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 |
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m_liddell ![]() Really should get out more ![]() Joined: 27 May 05 Location: United Kingdom Online Status: Offline Posts: 583 |
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I'm guessing the sail lifts the hull as well as driving it forward. "High performance sailing" has quite a lot on this type of design - apparently the unsteady nature of the wind was the problem and the idea was shevled.
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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This is one of the advantages of a SMOD... the floppy leech is not a very efficient use of limited sail area, but it is a very effective way to make the sail area easier to handle. So on a boat where you are free to choose sail design such a design will tend to be at a disadvantage because its not the best use of available sail area. On an SMOD this isn't an issue. In this case too another advantage is that because the Cherub mast height restriction is really too short you are stuggling to get the area in without ending up with a very long boom. This design gets the area in and makes it controllable, so it looks like a good choice in the circumstances. I'm rather less convinced about the short battens in the leech of both this sail and the Daemon one. I suspect that long battens give you better mid leech control with a very big roach as in the Kiwi 12 footer/R inspired rigs like Atum Boms. There won't be a rig like that at the trials though by the look of it. |
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Jack Sparrow ![]() Really should get out more ![]() ![]() Joined: 08 Feb 05 Location: United Kingdom Online Status: Offline Posts: 2965 |
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What I find interesting about the GT 60 sail shape is it looks quite a clever mid way point between cat sails and floopy leech windsurf ideas, if I am seeing the indent in the leech correctly in the picture. ( third batten to top batten looks like the profile is dog legged out, having come in from the second batten ) As for that last pic ' contender 541 ' this is from the same mad brain.... it works like a bat wing. the mast is hinged and sprung ( I think ) as as you draw down on the rig the mast shortens and the leech opens up and the C of E lowers. |
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Contender 541 ![]() Really should get out more ![]() ![]() Joined: 05 Dec 05 Location: Burton on Trent Online Status: Offline Posts: 1402 |
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Either a genius or not right in the head, i am not sure which
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When you find a big kettle of crazy it's probably best not to stir it - Pointy Haired Boss
Crew on 505 8780 |
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mike ellis ![]() Really should get out more ![]() ![]() Joined: 30 Dec 05 Location: United Kingdom Online Status: Offline Posts: 2339 |
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are we talking full battens only or are you including the little battens as well? |
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600 732, will call it Sticks and Stones when i get round to it.
Also International 14, 1318 |
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Jack Sparrow ![]() Really should get out more ![]() ![]() Joined: 08 Feb 05 Location: United Kingdom Online Status: Offline Posts: 2965 |
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full battens.
edit: but i've just looked again and it could be going back out from the top short batten to the very top full batten. ![]() Edited by Jack Sparrow |
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JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
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I'm fairly sure the leech is straight: it appears to be on the design drawing I've seen.
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Jack Sparrow ![]() Really should get out more ![]() ![]() Joined: 08 Feb 05 Location: United Kingdom Online Status: Offline Posts: 2965 |
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Oh well... much less interesting then
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BBSCFaithfull ![]() Really should get out more ![]() ![]() Joined: 06 Dec 05 Location: United Kingdom Online Status: Offline Posts: 1251 |
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Maybe the twist in the leech corses an optical illusion of a dog leg?
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www.allgoodfun.com Int 14 GBR 1503!! |
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HannahJ ![]() Really should get out more ![]() ![]() Joined: 23 Jul 05 Location: United Kingdom Online Status: Offline Posts: 861 |
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The transition rig thing - that's a mirror hull! i'm sure...
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MIRROR 64799 "Dolphin"
The pessimist complains about the wind; the optimist hopes it will change; the realist adjusts the sail |
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