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Doug Lord 
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Joined: 03 Sep 05 Location: United States Online Status: Offline Posts: 66 |
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 Posted: 18 Sep 05 at 7:12pm |
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Proposed "wing" ballast is 75-91kg. And variable...
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Stefan Lloyd
Really should get out more 
Joined: 03 Aug 04 Online Status: Offline Posts: 1599 |
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Posted: 19 Sep 05 at 6:51am |
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My mistake - I forgot you quaint Americans still use Imperial units. Doesn't change the point though: 90kg of buoyancy will be bulky.
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a_stevo
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Joined: 29 Aug 05 Location: Australia Online Status: Offline Posts: 72 |
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Posted: 19 Sep 05 at 7:28am |
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why not just go all out and make it a tri? its going that way. you'll end up with a move powerful safer simpler and lighter boat
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guytoon
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Joined: 16 Feb 05 Location: France Online Status: Offline Posts: 82 |
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Posted: 19 Sep 05 at 9:08am |
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Martin and Be0thwaite already worked together on this kind of boat : http://www.breizhskiff.com/forums/index.php?topic=3275.0 (sorry guys it's in french)
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Cherub 2692 "NBS"
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Black no sugar
Really should get out more
Joined: 04 Dec 04 Location: Somewhere between Brighton and Lancing Online Status: Offline Posts: 3941 |
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Posted: 19 Sep 05 at 9:43am |
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That's Europe for you, guytoon! I don't mind links in French... Surprisingly easy to understand |
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Stefan Lloyd
Really should get out more
Joined: 03 Aug 04 Online Status: Offline Posts: 1599 |
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Posted: 19 Sep 05 at 9:52am |
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Doesn't really sound the same. If I have understood the first post in the thread, Doug is talking about something a bit IC-like, but with ballast on the plank rather than the helm. |
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guytoon
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Joined: 16 Feb 05 Location: France Online Status: Offline Posts: 82 |
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Posted: 19 Sep 05 at 10:14am |
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Here is another approach from bethwaite.
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Cherub 2692 "NBS"
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Doug Lord
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Joined: 03 Sep 05 Location: United States Online Status: Offline Posts: 66 |
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Posted: 19 Sep 05 at 1:03pm |
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Looking forward to seeing more on Bethwaites"LAS" but the "Martin 29er" is nothing like I propose. Stefan is right: the weight slides on a curved wing shaped appendage moving the ballast 2.43 m to weather(the whole wing moves as well). More or less equivalent to a single heavy crew on a trap standing on one meter wide wings attached at the deck edge of a 1.3m wide boat. Loads of RM!
Enough RM that ,according to Bethwaites formula the boat would theoretically be able to plane upwind. I don't see a small high powered multi being safer than this boat! Maybe faster but this boat will be self righting-at least when configured in it's "safe mode". I built a 14' tri a while back that you sat down inside and the sensation of being so low-with your head real close to the water is amazing-that will certainly add to the experience of sailing this boat. Keeping the power manageable and the ballast easily under control is a challenge but I think it is feasible. |
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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: 20 Sep 05 at 10:05pm |
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You know there is a sports boat with a swing keel. It was at the Boat Show but I can't find an ad in Y&Y and I can't remember its name.
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Isis
Really should get out more
Joined: 01 Sep 05 Online Status: Offline Posts: 2753 |
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Posted: 20 Sep 05 at 10:25pm |
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Ive just read the Sailing Anarchy thread... obvouisly got a lot of respect on there Doug
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