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Top end limit finally reached.. |
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JimC
Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6649 |
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Topic: Top end limit finally reached.. Posted: 26 Jun 12 at 1:55pm |
Just goes to show how difficult consistently measuring wind speed actually is... Last weekend at my reservoir I was seeing regular gusts on the anemometer of up to 30knots sustained for 5 or 10 seconds, but lulls down to as low as 17. Goodness knows what a mean wind speed would have been. And to make matters even more complicated most anemometer are mechanical, so must have a certain tiny averaing effect on recorded wind strength.
I think as much as anything else its gust onslaught that makes things difficult. A sustained and steady 30 knots is certainly easier than breeze flicking up and down between 15 and 25. And so much depends on your rig. Edited by JimC - 26 Jun 12 at 2:21pm |
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RS400atC
Really should get out more Joined: 04 Dec 08 Online Status: Offline Posts: 3011 |
Post Options Quote Reply Posted: 26 Jun 12 at 1:56pm |
Hard to tell the windspeed from looking at the video, it looked like a weather shore, so no fetch to the waves.
30knots at Lymington would not look like that! 20knots true would be 30knots apparent in a niner... |
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Post Options Quote Reply Posted: 26 Jun 12 at 2:14pm |
That's probably why the Beaufort Scale was invented. Much easier to define a Force 7 than 30kts of wind. |
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alstorer
Really should get out more Joined: 02 Aug 07 Location: Cambridge Online Status: Offline Posts: 2899 |
Post Options Quote Reply Posted: 26 Jun 12 at 2:15pm |
Sort of right, as Beaufort lacked any sort of anemometer. They came later.
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Al |
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dkr1
Newbie Joined: 15 Jun 10 Location: United Kingdom Online Status: Offline Posts: 23 |
Post Options Quote Reply Posted: 26 Jun 12 at 4:31pm |
Im surprised nobody has mentioned the effect that waves have on the limit of what you can sail in.
I've sailed when 41 knot gusts were measured from the deck of a yacht at the top end of an estuary with clean wind and no significant waves and felt within my limits. Equally I've headed straight back in 25 knots of wind on an exposed coastline with a large, steep, waves. The famed 49er medal race is a prime example here (not wishing to start that rant however).
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timeintheboat
Really should get out more Joined: 01 Feb 07 Location: United Kingdom Online Status: Offline Posts: 615 |
Post Options Quote Reply Posted: 26 Jun 12 at 8:53pm |
I suspect the majority of us have been out in the really big stuff when caught out there rather than it being honking and thinking - I'll have some of that and launching (a laser qualifier in Poole Harbour thousands of years ago when a storm came through and knocked the sea flat springs to mind - Keith Wilkins was a monster that day)
I can only remember one occasion (Thames Estuary Yacht club (1985?) - I think it was) when I went out in laser when frankly I shouldn't - but I was young (ish) - and not aware of any responsibilities I might have and I'm here. Single hander for atrocious conditions - Laser, double hander - fireball.
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Like some other things - sailing is more enjoyable when you do it with someone else
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sargesail
Really should get out more Joined: 14 Jan 06 Location: United Kingdom Online Status: Offline Posts: 1459 |
Post Options Quote Reply Posted: 26 Jun 12 at 9:09pm |
Sitting out - L2K
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sargesail
Really should get out more Joined: 14 Jan 06 Location: United Kingdom Online Status: Offline Posts: 1459 |
Post Options Quote Reply Posted: 26 Jun 12 at 9:25pm |
Showing what's possible:
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Rupert
Really should get out more Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
Post Options Quote Reply Posted: 27 Jun 12 at 8:41am |
I see the video stopped when it all went wrong?
Fun for a blast with a rescue boat ratio of 1:1, but I'd not want to be providing rescue cover for a fleet of 300's in those conditions. |
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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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kurio99
Groupie Joined: 18 Dec 09 Location: Canada Online Status: Offline Posts: 65 |
Post Options Quote Reply Posted: 27 Jun 12 at 2:39pm |
Couldn't agree more. The last day of 2011 Cork was cancelled just before race start due to high winds. The boats already on the lake were scattered over a 1 to 2 kilometer distance. It could be several minutes before rescue would notice a problem and get on location.
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