Laser 28 - Excellent example of this great design Hamble le rice |
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Laser 140101 Tynemouth |
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Rossiter Pintail Mortagne sur Gironde, near Bordeaux |
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List classes of boat for sale |
Spy photos |
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BBSCFaithfull ![]() Really should get out more ![]() ![]() Joined: 06 Dec 05 Location: United Kingdom Online Status: Offline Posts: 1251 |
![]() ![]() ![]() ![]() Posted: 12 Apr 07 at 11:14pm |
Oh dear stu. Boats designed/bullt to 60kgs but bumped up to meet the class rules will be the same speed as others. As they would still have the same attributes etc just with a bit of lead in them.
Alex |
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www.allgoodfun.com Int 14 GBR 1503!! |
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49erGBR735HSC ![]() Really should get out more ![]() ![]() Joined: 30 Mar 05 Location: United Kingdom Online Status: Offline Posts: 1991 |
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So the first drawing of the boat was the design which actually went forward to build? If that isn't the case, it wasn't right first time. Design is a repetitive process where you have to fine tune things such as sail design and develope upon key ideas. The reason that the Bethwaites and many other designers have been successful is due to their research and development processes. Read any half decent book about sailboat design and one of the first things they state is "design is an iterative process" which contradicts the idea of getting it right the first time is the way to go. |
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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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Actually the 94 and 95 Nationals were won by Pasta Frenzy, Dave Roe's second design. The Bistro was designed with much careful thought and a lot of programming on an HP calculator: it was no fag packet and luck design! It was a great boat, but I think in 92/93 the Simon Roberts designs were faster. Those were the precursors of what has become the Daemon. Dave/Wendy in 92 and Dave/Helen in 93 were unquestionably the fastest crews, and crew speed always trumps boat speed. The comparison between the GT60 and the Daemon will be very interesting. FWIW my guess is that the Daemon will be faster in top speed, but the GT60 will be easier to sail, and capable of being driven a little harder when the Daemon has to be backed off a bit. The trials will be a rare opportunity to compare boats with equal crews. I could of course be completely wrong. Its suprising how rarely one really gets to compare boats on the level, and my theories about the effects of the differences in shape between the two boats could be arrant nonsense! Edited by JimC |
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SetSail ![]() Posting king ![]() ![]() Joined: 06 Oct 06 Location: United Kingdom Online Status: Offline Posts: 100 |
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except they had to name it the GT60......why why why? |
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RS821 - Now for sale, PM for details
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olly_love ![]() Really should get out more ![]() Joined: 18 Jan 05 Location: United Kingdom Online Status: Offline Posts: 1145 |
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i will have to have a look when i am back in suffolk
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TWO FRANK-Hunter Impala
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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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I though for a bit that the GT60 had the biggest tiller extension on the planet...
![]() ![]() On a serious point I am interested by the mains leech profile, it looks to me as if this is the first time I have seen modern floppy leech windsurfing sail design ideas being employed on a dinghy. Or it could be just the photo or the battens not being set correctly. It will be interesting to see her sail in some wind, and to see if the sail blades as automaticaly from mast tip to second batten as it looks like it will. BTW top spying Mark! See does look a mightly fine ship. She is designed within the Cherub rules? Do we know for sure? Or is she a 13ft something dinghy. ![]() |
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Dave Chiz ![]() Newbie ![]() Joined: 13 Apr 07 Online Status: Offline Posts: 27 |
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Hi everyone and thanks for your views on the boat. To answer a few questions - The boat was designed for a crew weight of 125 to 140 kg (ish) so that Andy and I could be sure it would work with our 138 or so lard - the fact that this 'payload' sits right in the criteria for the ISAF boat was one of the factors that made us decide to go for it. I think the weight of the boat will be a bonus as it lowers sheet loads and makes it easy to manhandle on and off of trailers etc - an important part of any design. Why GT60? Well I'm a bit bored of classes saying they are the Formula 1 of sailing - In my view the only way you could say that is if you have a fleet of 30 Sail Rockets - That would be F1! I also think Touring Cars and GT cars are more fun to watch and have a bit more real life about them - so GT it was... 60 for 60kg, but surely that's ok - 5o5 for 5.05m, 49er for 4.9m, 10sqm Sharpie... Why not name one after it's weight? At the end of the day the focus of this boat is to be a really good Cherub, with everything on it state of the art. The foils are Dave Hollam's brilliant 2006 sections, the sails are indeed a cat/windsurfer development, a similar shape of which nailed the top 3 at the 14 worlds in 2006 (as did the majority of the hull form) and we are sure will become a lot more prevalent in the next couple of years - after all if the boat were to win selection, it would have to look fresh in 2012, so you have to be a bit forward of the curve! Some of the stuff that is on the boat, the pics do not show. The jib sheeting system is asymmetric to work perfectly in the high pressure situations on the race course, and yet still function well everywhere else; the kite-chute has a roller in the mouth of it to reduce the drag of a wet kite pull down; the wing on the rudder is asymmetric and is pulling lift equal to 2.5degrees from a symmetrical shape at 0 degrees angle of attack - and it has a range of 12 degrees (+7, -5) and boy does that make it fly... the list goes on, but time does not permit - after all, we're booked on a ferry to France this afternoon. Olly - come and see us when we get back - and if anyone wants to see her, give us a call. We'll be putting a blog of the build up on the carbonology.com site as soon as we get back. Cheers for now, Dave Chisholm. |
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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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and now for something totally different....
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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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Edited by Contender 541 |
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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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hows that meant to work?
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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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