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The vortex concept

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49erGBR735HSC View Drop Down
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Post Options Post Options   Quote 49erGBR735HSC Quote  Post ReplyReply Direct Link To This Post Topic: The vortex concept
    Posted: 28 Feb 07 at 12:06pm
Know a few people who bought Vortexs and then decided that cats were a far better option. Not bashing the Vortex but suppose it's horses for courses and for restrictive inland sailing or at clubs with small cat fleets, can see the argument for the Vortex as sailing on handicap against mono's might be more interesting due to there not being a massive gap in handicap between them.
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English Dave View Drop Down
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Post Options Post Options   Quote English Dave Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 07 at 10:53am

Originally posted by Hector

BUT The statement above that "sunday no wind and they were no where to be seen" is typical of the exaggerated / misleading comments elsewhere on this thread.

Hector, just because you don't agree with some of the negative comments doesn't mean that you can slam them all as exaggerated and misleading. I got this from you.

Originally posted by Hector

Sorry to say this Dave but you must have been sailing it very badly.

The notion that a Vortex (being even half decently sailed) could be as slow as you describe is quite ridiculous.

Medway got this for his sins:

Originally posted by Hector

Regarding the 6 Vortex at your club, as you possibly know, all bar one of them never has never got in the top half of the open fleet.

So are you saying that the Vortex is only a boat for experts? If so it is never going to succeed in a handicap fleet of mixed boats and abilities. And it was originally marketed as being relatively easy to sail for it's performance.

Laser stopped building the Vortex because not enough people bought them. Perhaps you don't rate opinions of the general boat-buying public either!

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Medway Maniac View Drop Down
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Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 6:09pm

Originally posted by Jack Sparrow


How much play in PY are we talking here? And is this for the Assy Vortex
as well?

Sorry Jack, just went back to page 1 to remind myself what this thread was all about, and saw your unanswered question.

I rate boats for displacement, marginal planing (roughly, trapeze-asymmetric boats are, others are not), and 'everybody's planing' conditions.

The Laser 2000, as a hiking boat that prefers some wind, is my datum boat, and has zero correction.

The Vortex A has a -8%, 4% , 4%  corrections, respectively 

The kite-less Vortex is -9%, 3%, 6%

A Contender, is -6%, 0, 6%

Most boats are around + or - 2%, e.g. Laser 4000:  -3%, 2%, 1%.

I don't pretend these figures are scientifically accurate - you'd need to run 100's of races to get near that, but I've tended to under-correct rather than over-correct, bumping up the corrections only when they're clearly inadequate.

As an interesting aside, I started with a 10% spread between novices and experts. Now I'm up to 20% and it's still not enough, especially in tricky conditions!

 

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Post Options Post Options   Quote Robert 1351 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 07 at 5:21pm
Hi Rob

Like you, last year I was looking for something whizzy as I wanted to get back into sailing.  For me the Dart 16 seemed to be the Bees Knees, amongst other contenders.  When I saw it up close, the glow faded a bit - and then I realised I would probably not be able to race it against others in the same class, so it went out of the window.

I chose a Sprint 15 on the boat itself - size, ease of handling (especially for one), car toppable, multi-format and proven track record.  The bonus came with the Class Association, as it is rock solid.  I don't have a resident club but I still feel as though I belong to a good sailing community.  Events and class racing are all on offer and turn-outs are good.  People always welcome me when I arrive at any venue and there are plenty of people ready to answer my queries as well as being interested in my progress. 

I have coped quite adequately in heavy, gusty conditions despite my relative inexperience with a cat and have come home with a huge grin and a springier step.  Having seen the Vortex YouTube video I think that some of those guys were having to work very hard indeed considering how much wind they were having to spill in the gusts.  The Sprint 15 is much easier than that, even if you are only hiking with una-rig.

I didn't consider the Vortex because it seemed too tippy and I thought that a real cat or monohull would be a better bet.  My only regret is that I didn't get a Sprint (Dart) 15 five or ten years earlier when I first thought of the idea!

Good luck.

Robert. 


Edited by Robert 1351
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Post Options Post Options   Quote Hector Quote  Post ReplyReply Direct Link To This Post Posted: 26 Feb 07 at 1:16pm
Originally posted by spin cycle

I  have only raced against well sailed vortice's once  at the scottih skiffs at kielder I definetly got a shock at the  windward mark to find 2 of them in front of me at the windward mark on the saturday sailing a 14. sunday no wind and they were no where to be seen.  The 2 guys were 1st and 2nd at the nats somust of known how to sail the boat well and  seeing other vortices sailing It  is probably a handicap bandit  in the breeze  if   well sailed but in   light and s**t conditions  you are better of sitting in the bar!!

try  the boat if you like it buy it because every class has its negatives.

Totally agree with the try it and buy it concept and can't disagree that all boats (including the Vortex) have some negatives. Also think that the bar is a good place on many light wind occasions (unless you sail a Thames A Rater!)

BUT The statement above that "sunday no wind and they were no where to be seen" is typical of the exaggerated / misleading comments elsewhere on this thread. The results are pasted below. Out of 30+ boats, including top class sailors from various fleets the Vortex were 8th and 9th in the last (very light wind) race. In fact it was so light a second race was never started. How that can be described being 'nowhere' or the performance of a 'a dog' is beyond me.

Kielder - Overall Results:

1. Richard Stenhouse (Musto Skiff, Rutland) 7; 1; 2; 1; 1 (5)
2. Phil Whitehead, (Vortex, Yorkshire Dales) 2; 4; 3; 3; 9 (12)
3. Keith Escritt (Vortex, Yorkshire Dales) 4; 3; 4; 2; 8 (13)
4. Ian Trotter (Musto Skiff, Derwent) 3; 6; 1; BFD; 5 (15)
5. Ross McKercher & Stuart Gardiner (RS800, Dalgety Bay) 8; 5; 5; 4; 7 (21)
6. Gavins Homer & Mackinnon (International 14, Dalgety Bay) 5; 7; 7; BFD; 3 (22)

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Post Options Post Options   Quote combat wombat Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 07 at 9:46am
Force 7?  28-33 knots? 
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Post Options Post Options   Quote Sprint Bob Quote  Post ReplyReply Direct Link To This Post Posted: 24 Feb 07 at 11:54pm

Originally posted by Rob Dainty

I have been looking around for a while to find a single-handed trapeze performance dinghy which is maybe not as difficult to sail as perhaps an RS600/700. I suspect  there are a lot of people out there who are in the same boat (or would like to be!). The boat that did meet the needs of the majority was the Vortex. I know the guys sailing them love them, so why oh why do Laser still not produce them any more.   

Rob, I remain of the view that you will be better off with a Sprint 15. The problem with the Vortex in my view is that unless you live near Grimworth you will not be sailing against other Vortex boats but will be confined to handicap racing. The Laser Centre did not make the boat for long enough to build up big fleets or a big class association. The Sprint 15 has both a big and active class association to have 60+ at the Nationals and to have well attended open meetings every month of the year. There are probably 15 or so Clubs in the country where you can get Fleet racing. It is much more forgiving to sail than the RS600/RS700 as the wind gets up. At Grafham we have 40 Sprint 15s, one Vortex and about 10 RS600s and a few RS700s. The Vortex is hardly ever sailed. As the wind gets up beyond a F4 the RS600/RS700s are swimming but the Sprint 15 is relatively easy to sail up to F7 and beyond. In common with all cats it does not do well against monohulls in handicap racing as the wind strength drops to F1-2 - but then we generally get our kicks from class racing on those days.

Cheers

Bob

PS I see that there is a Sprint 15 for sale on the Sprint 15 website (www.sprint15.com) in your price range at Beaver SC



Edited by Sprint Bob
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 07 at 10:52pm
Originally posted by spin cycle

every class has its negatives.



Possibly the simplest yet best fact pointed out thus far.  And lets face it, whether or not the vortex does or doesnt perform well in the light stuff, unless you're sailing an 18ft skiff singlehanded, the light winds AREN'T going to be where our main enjoyment of the sport comes from. 
I personally really like the vortex, and if i was even lighter, im pretty sure thats the boat i'd go for. 
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Post Options Post Options   Quote spin cycle Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 07 at 10:12pm

I  have only raced against well sailed vortice's once  at the scottih skiffs at kielder I definetly got a shock at the  windward mark to find 2 of them in front of me at the windward mark on the saturday sailing a 14. sunday no wind and they were no where to be seen.  The 2 guys were 1st and 2nd at the nats somust of known how to sail the boat well and  seeing other vortices sailing It  is probably a handicap bandit  in the breeze  if   well sailed but in   light and s**t conditions  you are better of sitting in the bar!!

try  the boat if you like it buy it because every class has its negatives.

 

 

 

 

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Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 07 at 8:31pm

Hector

You seem to forget that I race against these guys every week, so I've had a few years to assess the boat's performance. From that I know that what is a very quick boat downwind in 10 knots becomes a dog in under 6.

Just last Sunday in the Hoo Freezer in the 3000 - an asymmetric traditionally viewed as a poor light wind performer - we caught up the five minute 'first start' lead of our best Vortex and overtook him although he's rated 10% faster than us. OK, that was in a V3k, but I've done the same in club racing in those conditions in a Laser 3k. Another few knots of wind and he'd have left us for dead on the run. Other classes' performance doesn't change that markedly with wind strength.

That's what I mean about not being good for handicap racing - before you go out in a Vortex you must be able to look at the wind and know if you stand a chance or not, even when racing among other trapeze asymmetrics. Amongst those others the outcome is not so certain.

The reason, I'm sure, is that alluded to by Wildwood - having two hulls means you pay a wetted area penalty, and in light airs skin friction is overwhelmingly the main drag source. That is indeed the case for all cats.

By the way, I don't recall saying that asymmetrics are usually disavantaged on club courses on the Medway - I don't think that's the case except on a few very specific occasions. Indeed, it's sometimes nice to have a justification to dive off the straight line course and out of the tide. Hardly an issue anyway, now that most of us sail asymmetrics. There are days with lots of white sail reaches, but that's a problem whichever sort of spinnaker you're using.

Whatever, I hope you'll come to the Medway Regatta in July, and maybe the Grand Prix and Marathon immediately before it, if only to make me eat my words

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