New Posts New Posts RSS Feed: Curtains for Assymetrics?
  FAQ FAQ  Forum Search   Register Register  Login Login

Curtains for Assymetrics?

 Post Reply Post Reply Page  <1 678910 12>
Author
r2d2 View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 29 Sep 11
Online Status: Offline
Posts: 350
Post Options Post Options   Quote r2d2 Quote  Post ReplyReply Direct Link To This Post Topic: Curtains for Assymetrics?
    Posted: 10 Oct 13 at 6:00pm

Back to Top
alstorer View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 02 Aug 07
Location: Cambridge
Online Status: Offline
Posts: 2899
Post Options Post Options   Quote alstorer Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 13 at 6:51am
could you imagine a 65ftr with a bowsprit of similar proportion to hull length as most dinghy ones are?

Also, GRF would approve of the sprits on the Class 40s...
-_
Al
Back to Top
Dougal View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 23 Sep 09
Location: England
Online Status: Offline
Posts: 556
Post Options Post Options   Quote Dougal Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 13 at 8:03am
Originally posted by alstorer

could you imagine a 65ftr with a bowsprit of similar proportion to hull length as most dinghy ones are?


There was a boat called Essex Girl - owned by Richard Matthews at the time I think - that used to race on the East Coast in the mid/late 90's that wasn't far off that, although I'm pretty sure it would have been nearer 40ft than 65ft.

I tried Google to find a picture.  Sticking 'essex girl' into a search engine produced all sorts of interesting results, but unfortunately nothing to do with sailing!

What could possibly go wrong?
Back to Top
RS400atC View Drop Down
Really should get out more
Really should get out more


Joined: 04 Dec 08
Online Status: Offline
Posts: 3011
Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 13 at 8:07am
Originally posted by alstorer

could you imagine a 65ftr with a bowsprit of similar proportion to hull length as most dinghy ones are?

....
I've seen a few, unfortunately they tend to come with a gaff rig.
Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 13 at 9:09am
Originally posted by Dougal

Originally posted by alstorer

could you imagine a 65ftr with a bowsprit of similar proportion to hull length as most dinghy ones are?


There was a boat called Essex Girl - owned by Richard Matthews at the time I think - that used to race on the East Coast in the mid/late 90's that wasn't far off that, although I'm pretty sure it would have been nearer 40ft than 65ft.

I tried Google to find a picture.  Sticking 'essex girl' into a search engine produced all sorts of interesting results, but unfortunately nothing to do with sailing!


45ish I think - it was certainly a generation different from the AC12 'Crusader'.



Back to Top
Wetabix View Drop Down
Posting king
Posting king


Joined: 15 Feb 10
Location: United Kingdom
Online Status: Offline
Posts: 118
Post Options Post Options   Quote Wetabix Quote  Post ReplyReply Direct Link To This Post Posted: 17 Oct 13 at 11:36pm
I am old enough to have lived through 'the Asymmetric Revolution' and recently acquired one. I have read everything there is to read on the subject (which is not very much) and have, of course, read Higher Performance Sailing.  For many years (through my fifties and sixties ) I sat comfortably in my Phantom running more or less DDW and collected a fair proportion of the club's silverware the while. Now, I work like the proverbial one-armed paperhanger trying not to lose ground on the downwind legs to those Phantoms and, indeed, Lasers.  Furthermore, because my asymmetric is of the furling variety, I have to put up with its considerable drag on the upwind legs. Suspecting that the boat would get round the course more quickly without it, I bought a SpeedPuck and have done a number of comparative runs around a course the check this.  This has proved beyond doubt that soaking very deep is almost always quicker than pointing high and two sail running is not a lot slower.  This, of course, is exactly what Frank Bethwaite says- only the 49er and the Tornado are fast enough to get the apparent wind effect and the rest of us are conning ourselves.  And yet, as a recreational boat the Weta is enormous fun and capable of hauling a seventy-year-old around at fifteen knots at the right angles. The trouble is, that these angles don't very often occur on a racecourse and you spend a great deal of energy sailing frenetically back and forth only to see the Phantom arrive at the leeward mark ahead of you. Hopefully it will capsize during the gybe (which the Weta won't!).   It helps, of course, if the course is a triangle which makes the Phantom sail a bit further,  but it's not a lot slower on a beam reach and I will only make up a few seconds before having to furl my screacher, with much potential for a screw up.  Which sums up the asymmetric thing - great fun but not actually fast in a mixed fleet.
Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 18 Oct 13 at 10:03am
Originally posted by Wetabix

I am old enough to have lived through 'the Asymmetric Revolution' and recently acquired one. I have read everything there is to read on the subject (which is not very much) and have, of course, read Higher Performance Sailing.  For many years (through my fifties and sixties ) I sat comfortably in my Phantom running more or less DDW and collected a fair proportion of the club's silverware the while. Now, I work like the proverbial one-armed paperhanger trying not to lose ground on the downwind legs to those Phantoms and, indeed, Lasers.  Furthermore, because my asymmetric is of the furling variety, I have to put up with its considerable drag on the upwind legs. Suspecting that the boat would get round the course more quickly without it, I bought a SpeedPuck and have done a number of comparative runs around a course the check this.  This has proved beyond doubt that soaking very deep is almost always quicker than pointing high and two sail running is not a lot slower.  This, of course, is exactly what Frank Bethwaite says- only the 49er and the Tornado are fast enough to get the apparent wind effect and the rest of us are conning ourselves.  And yet, as a recreational boat the Weta is enormous fun and capable of hauling a seventy-year-old around at fifteen knots at the right angles. The trouble is, that these angles don't very often occur on a racecourse and you spend a great deal of energy sailing frenetically back and forth only to see the Phantom arrive at the leeward mark ahead of you. Hopefully it will capsize during the gybe (which the Weta won't!).   It helps, of course, if the course is a triangle which makes the Phantom sail a bit further,  but it's not a lot slower on a beam reach and I will only make up a few seconds before having to furl my screacher, with much potential for a screw up.  Which sums up the asymmetric thing - great fun but not actually fast in a mixed fleet.

Great post!  The conclusion I have come to (for me anyway) is that sailing with an asymmetric on most dinghies can be great fun in planing conditions, but for competitive racing against boats that don't have them, on courses that don't favour them, it's a bit of a waste of time and adds unnecessary cost and complexity.   Secondly if you look at the PY of the Weta verses the Laser or even the Phantom, you've got a lot of ground to make up upwind, after travelling at the same VMG downwind.  That would be a frustrating race for some of us.   Embarrassed

I doubt I will buy another asymmetric boat- especially a singlehander.  


Edited by yellowwelly - 18 Oct 13 at 10:13am
Back to Top
Neptune View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 08 Jun 09
Location: Berkshire United Kingdom
Online Status: Offline
Posts: 1314
Post Options Post Options   Quote Neptune Quote  Post ReplyReply Direct Link To This Post Posted: 18 Oct 13 at 10:42am
Originally posted by yellowwelly

  only the 49er and the Tornado are fast enough to get the apparent wind effect and the rest of us are conning ourselves

 but for competitive racing against boats that don't have them, on courses that don't favour them, it's a bit of a waste of time and adds unnecessary cost and complexity

I doubt I will buy another asymmetric boat- especially a singlehander.  
[/QUOTE]

Pretty sure my Musto sails down wind using the apparent wind effect, so not sure i believe that that only a 49 or faster can make it work.

There's your problem, course that don't favour them......take a knife to a gun fight and you'll have to be lucky.  Pick the right tool for the job, and learn to use it and its bloody brilliant.  Most decent clubs have separate asymmetric fleets now don't they? 

Not sure i would buy any other asymmetric single hander other than a Musto.
Musto Skiff and Solo sailor
Back to Top
yellowwelly View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 24 May 13
Online Status: Offline
Posts: 2003
Post Options Post Options   Quote yellowwelly Quote  Post ReplyReply Direct Link To This Post Posted: 18 Oct 13 at 10:48am
Originally posted by Neptune

 

Most decent clubs have separate asymmetric fleets now don't they? 



no- although you'd be forgiven for thinking so given how many claim to have separate asymmetric fleets.  

The truth is in the answer to the following question... how many clubs out there have a decent take up for W/L racing- like you guys at Datchet get- with a dedicated start and W/L course?  

I dunno.... but my experiences suggest it's far less than those who claim to have it on their websites.  We advertise it, offer it on occasion... but trying to get any consistency and critical mass is a PITA for all involved.


Edited by yellowwelly - 18 Oct 13 at 10:50am
Back to Top
laser193713 View Drop Down
Really should get out more
Really should get out more


Joined: 13 May 09
Location: United Kingdom
Online Status: Offline
Posts: 889
Post Options Post Options   Quote laser193713 Quote  Post ReplyReply Direct Link To This Post Posted: 18 Oct 13 at 10:57am
I have been watching and reading this for some time now. I struggle to understand this "apparent wind effect" chat. Are you really saying that most boats sail on true wind and only a few can sail on apparent wind. Errrr... fatal error in your physics here. I hate to break it to you all but every boat sails on apparent wind, just some the angle between apparent wind and true wind is greater due to increased hull speeds. 

I don't understand where you draw the line on this effect, there isnt a line in reality, it is just how sailing works... if everyone sailed AC72s would you say that a 49er is not an apparent wind boat. After all, the apparent wind angle on a 72 never goes above around 10 degrees, even downwind. On a 49er it generally hovers around 90 degrees, as a guess. 

Perhaps this will help dispel this tedious belief that some boats are apparent wind boats and some boats aren't. If it is just a loosely used term then I really struggle to understand how some boats are and some boats aren't? Is it a fixed difference in angle between TWA and AWA? Someone please explain!? 
Back to Top
 Post Reply Post Reply Page  <1 678910 12>

Forum Jump Forum Permissions View Drop Down

Bulletin Board Software by Web Wiz Forums® version 9.665y
Copyright ©2001-2010 Web Wiz
Change your personal settings, or read our privacy policy