Laser 161752 Tynemouth |
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Laser 28 - Excellent example of this great design Hamble le rice |
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Laser 140101 Tynemouth |
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List classes of boat for sale |
David Henshall's article |
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Dougaldog ![]() Far too distracted from work ![]() Joined: 05 Nov 10 Location: hamble Online Status: Offline Posts: 356 |
![]() ![]() ![]() ![]() Posted: 19 Dec 14 at 3:25pm |
TT. Nah, I can cope with all of that! Ask Jon 711. He was my DRO when I dealt with all of those perils, indeed, it was worse than that, they were French and Spanish, with a tame French IJ into the bargain. I put the IJ back into his box, cleared the event of coaches and gave the competitors a blast that had them scurrying for cover - and all in their own lingo. So if using English, either the Queens version, Estuary or whatever is spoken in southern Kent, I can manage. No, what will do for me are the massed ranks of people in 'the centre' who made cornered the market in promoting a version of sailing that is the equivalent of the 'Emperor's Clothes'. Putting the head above the parapet and saying the unthinkable - that they might be wrong - is hardly going to put me onto their Christmas Card list! You might enjoy the festive tail twisting though............
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Dougal H
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craiggo ![]() Really should get out more ![]() ![]() Joined: 01 Apr 04 Location: United Kingdom Online Status: Offline Posts: 1810 |
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Nessa, I know of several boats which have had foils moulded in 3d printed moulds and several people I know have fittings for wing tubes on 14s and Cherubs that they have printed. The fascination with 3d printing does however often miss the point that simple geometries are often cheaper and quicker to produce conventionally. If someone creative got their mind around the ability to produce parts from the inside out rather than outside in, then we might see some interesting components being printed. One final piece of info, the mast foot for the C-class Invictus mk 2 & 3 wings were grown on an EOS DMLS machine from Ti 64. The part cost was probably in the order of £250 +20mhrs, so not stupid money. Unfortunately not many dinghy builders would want to fork out the £500k for the machine! |
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I think the clinker lines break the slab of freeboard up and make the Merlin much more attractive than it would be if smooth. And as they're all the same it doesn't really matter if that slows them down a fraction.
Nice article, but no mention of moths or 29er on a report about radical design? |
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Dougaldog ![]() Far too distracted from work ![]() Joined: 05 Nov 10 Location: hamble Online Status: Offline Posts: 356 |
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Peaky: Patience ever patience and joy shall be thy share! Wait for Christmas and Part deux!
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Dougal H
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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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Or at least it wouldn't matter if they weren't perpetually arguing about what constitutes allowable fairing of planks, lands, external rubbing strips and all the other stuff... |
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The Merlin does strike me as a slightly closed shop, difficult to break in to from the outside with difficult to interpret rules.
Development classes should be as fast as possible within its rules, but a one design should be as nice to sail as possible, not simply as fast as possible. Of course, it is hard to think of metrics for 'nice', so it is hard to quantify what a successful one design is. Taking weight out makes a design faster but tenderer. I have been trying to figure if there is an optimum initial stability for niceness, based upon metacentric height. A bigger meta centric height implies a beamier waterline or higher hull weight. Cherubs and Moths have very low (negative?) metacentres, wayfarers very high. Somewhere in between is a compromise of speed and initial stability. Merlin's probably have this about right as they don't seem to have a reputation for being twitchy but are still slim enough to go well. |
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Time Lord ![]() Far too distracted from work ![]() Joined: 03 Dec 13 Location: Warwickshire Online Status: Offline Posts: 301 |
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Rupert
I could well agree that smooth versus clinker would probably not make a significant speed difference in real terms but would almost certainly have an effect on the helm's mindset! |
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Merlin Rocket 3609
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Rupert ![]() Really should get out more ![]() Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
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True!
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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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Time Lord ![]() Far too distracted from work ![]() Joined: 03 Dec 13 Location: Warwickshire Online Status: Offline Posts: 301 |
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An excellent article by David. I look forward to the next one.
By the way, do you know what has happened to the tilting rig? Any further development? |
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Merlin Rocket 3609
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iGRF ![]() Really should get out more ![]() ![]() Joined: 07 Mar 11 Location: Hythe Online Status: Offline Posts: 6499 |
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The 'it' you didn't get, was the meaning of the word radical, let me offer one such explanation..
"thoroughgoing or extreme, especially as regards change from accepted or traditional forms:" So given the traditional nature of a clinker built hull what 60 years old? Then references to Fireflies, seriously I read it, looking for something even vaguely radical... I'm still waiting. No mention of International canoes, they're a bit radical don't you think? Or sticky up flying insect boats like that lad down at Aardvark makes in sometimes revolting colours, they look quite 'rad' to me. No, we content ourselves with a love affair with the drunkards boat of choice, the bandit to beat all bandits, the cockleshell heroes... Sorry as misstated an article as ever there was however good a read it might be and I spotted and read it at 2.38 as it first appeared, I had difficulty getting my eyes to refocus from where they'd rolled into the top of my head by 2.45.. But hey it's entertainment. ![]() Edited by iGRF - 19 Dec 14 at 8:12pm |
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