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The vortex concept

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    Posted: 23 Feb 07 at 2:19pm
I'll be quite happy to see a vortex pitchpole, if he's ahead of me that is 
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Hector View Drop Down
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Post Options Post Options   Quote Hector Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 07 at 5:07pm

Originally posted by Medway Maniac


My observations were based on the performances of six Vortices, five with asymmetrics - surely they can't all have been unrepresentative?

 

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. One of the better ones now sails a Musto - but is still struggling to sail a course, and still gets poor results in light winds - so is it the boat or the sailor?  Elswhere on this forum you have alluded to the fact that asymmetrics are disadvantaged on your club courses. As well, I imagine that on the Medway, it pays to hug the bank to cheat the current - and to be honest I can't think of worse conditions for a Vortex than very light winds and short tacking up a bank to stay out of the current. I'd never try to say that having to tack frequently in light winds would be anthing but disasterous for a Vortex on handicap. Another factor?

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Post Options Post Options   Quote Hector Quote  Post ReplyReply Direct Link To This Post Posted: 23 Feb 07 at 5:09pm

I'm not trying to kid anyone here that in light winds, a Vortex is as fast as it's handicap shows.  But the 'assasination' of it's lightwind performance on here deserves a response. In fact we can probably all give examples of poor performance from 'high performance' trapeze boats - especially in light winds. So does the fact I've seen an RS200 beat all bar one of the dozen or more Musto Skiffs at the Birkett on the water after 2 hours racing  prove that MPSs are dogs in light wind? - NO of course it doesn't - it says more about how fluky light winds can be, and more particularly how it's easier to take advantage in some types of boats.

But how do I convince anyone that if you know how to drive a Vortex the performance is there? Obviously not by trying to tell you in my own words, so perhaps by using others -----

Report from Musto Skiff website   http://www.mustoskiff.com/reports-and-news/2005/steve-nic-ra ce.htm  Conditions were patch and shifty with winds between 0 to 10 knots, not ideal for the trapeze classes. With 33 asymmetrics on the short start line clear air was at a premium and once buried it was a challenge to break free of the fleet in the light conditions.

In the strongest winds of the day in race one Richard Stenhouse was superlative and making good use of the stronger puffs broke free of the fleet to win, hotly chased by Kit who finished 3rd with a well sailed vortex splitting the family

 

OR from this forum,   http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=2 038&KW=keilder+vortex&TPN=2    ------------When the Vortex's came to Kielder for the SSR grand prix event they performed very well in all conditions. On the fist day it built to a 6 and they di very well, on the 2nd it was less than a 2 and they were still doin very well. Both vortexes were 2nd and 3rd overall with only sten beating them in is Musto. I am personally going for a 600 because keeping the boat upright is more of a challenge and is half the fun
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So yes, in light winds their handicap isn't favourable, but if sailed well,  a Vortex can clearly still get good results - except possibly on the Medway


HECTOR



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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: 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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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 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 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



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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? 
B14 GBR 772
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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 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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