Debunking Dodgy Sailing Theories |
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Roger ![]() Really should get out more ![]() ![]() Joined: 23 Mar 04 Location: Somerset Online Status: Offline Posts: 524 |
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I thought the question was with regards to the theory that heeling a boat to windward on the beat would make it point higher! at least for the same speed anyway. I seem to recall some thinking the hull shape in the water made a difference when heeled to windward, and others believed the rig performed better when heeled to windward, hence canting rigs to windward in Melins (recently) and Flying Dutchman (many years ago) There is of course always the theory that what you think is flat isnt, and you should always feel that the rig is pointing to windward, but thats different. |
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Rupert ![]() Really should get out more ![]() Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8766 |
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One of the Rooster vids goes into it in some detail. Easier to see it happening than to explain, at least for me...
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Firefly 2324, Lightning 130, Puffin 229, Minisail 3446
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themeaningoflife ![]() Far too distracted from work ![]() ![]() Joined: 06 May 11 Location: Essex/ Kent Online Status: Offline Posts: 212 |
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Plus if a gust hits when the boat is heeled to windward, as it comes flat it is in the best position to accelerate from and thus more speed and height!
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SoggyBadger ![]() Really should get out more ![]() Joined: 26 Oct 10 Location: The Wild Wood Online Status: Offline Posts: 551 |
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Kevin Haynes was doing that in the 70s, which is recent on a geological scale of course ![]() |
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Best wishes from deep in the woods
SB |
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zippyRN ![]() Far too distracted from work ![]() Joined: 14 Sep 06 Online Status: Offline Posts: 437 |
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exactly keeping flow attached , it also depends, as you say on the rig - with the extremes of the laser / topper style shroudless una rig at one end and the all singing all dancing 27 pieces of string of a merlin or somesuch at the other as to what influence the outhaul and the cunningham has - basically by what opposes it's actions
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zippyRN ![]() Far too distracted from work ![]() Joined: 14 Sep 06 Online Status: Offline Posts: 437 |
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(some) pond sailors will sail if there's one wind ripple per square metre of water's surface or less, where in tidal waters you 'd just be being pushed around by the tide
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zippyRN ![]() Far too distracted from work ![]() Joined: 14 Sep 06 Online Status: Offline Posts: 437 |
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exactly ...
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JohnW ![]() Really should get out more ![]() ![]() Joined: 17 Jul 07 Location: United Kingdom Online Status: Offline Posts: 552 |
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That's blowing a hoolie on our lake! The other week the race was run (by popular request) when the only ripples were caused by fish jumping and ducks swimming! (and it was foggy). I was glad I was on race duty that day. I dont recall how many boats had their clew outhaul on hard though. |
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Peaky ![]() Really should get out more ![]() Joined: 15 Nov 08 Location: United Kingdom Online Status: Offline Posts: 2775 |
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The rudder will always have drag, just like the centreboard. A light helm does not mean no drag, it just means it is better balanced. Edited by Peaky - 28 Dec 11 at 10:51pm |
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RS400atC ![]() Really should get out more ![]() Joined: 04 Dec 08 Online Status: Offline Posts: 2957 |
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A rudder that is continuously providing lift to counteract weather helm will create more drag than one which is not. |
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