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Devotti Single Hander

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craiggo View Drop Down
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Post Options Post Options   Quote craiggo Quote  Post ReplyReply Direct Link To This Post Topic: Devotti Single Hander
    Posted: 03 Apr 09 at 2:42pm
Class insignia should have a bolt through it definateley.
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Post Options Post Options   Quote blaze720 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 11:47am

Mike are you going to look at the kite as a bolt on option IE same as the Halo?

Yes - It does work and can be very neat and will be bolt on/off.  Unusually the foredeck is concave on the standard hull of course.  Ever wondered just why ?  Forestay on top of shallow hoop set back about 20cm from the bow and sock to port side of mast.  We've been talking about the sails for some time and it will not be excessively large, and with a clew that will be quite high to give good sighting under it.   The kite may well sheet to the front of the wings  as an option (we still need to try that one with the right sail) and the set-up will feature a shortish pole.  Both these features and the flat cut and modest size mean we will be able to sheet it at a wide angle relative to the hull.  These factors will hopefully allow us to go deeper than otherwise if required or relatively high if the course demands.  The basic boat is fast on a reach anyway so it should be particulalry interesting on those angles (ie not too limited or restricted to windward/leeward).  We see this as a club option for the spinnaker enthusiasts that will be easy to handle and that still allows the boat to be raced in its respective class whenever that is wanted.  Now if we make it will they come ?

No promise of production though if it is not good enough, and no rush to get it out 'first'.  There lies the rough road to disapppointment for all .. we've all seen it in the past.  Lastly - this will definately be a controlled 'in-house only' project.   Forum input always noted though ! 

Mike L.

 

 

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Post Options Post Options   Quote ifoxwell Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 10:58am

Originally posted by Peaky

What is the point of the traveller?  What does it do that can't be done by the kicker?  And if it does do something extra (or better) is it really worth the cost, hassle and sore shins?

I'm not a fan of unstayed rigs but if it has to be unstayed then a traveler is to my mind essential on a dinghy designed for serious racing. Its the only way I feel that you can set the sail correctly on all points of sailing and retain full control... the kicker only goes so far when you trying to retain the correct bend in the mast.

But I'm sure others would disagree

Ian

 

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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 9:00am
I dont want to wade in here and totally kill this thing dead in the water,
but didn't anyone notice how close to the water that low boom comes
during a gybe, all very well on lakes and flat water but certain inverted
dampness on our chop if it happens at the wrong moment as it certainly
will at least once round the course.

Why make the boom so low what is the point?

All that end plate effect is so eighties and debunked now with more
efficient Hi aspect rigs.

And why so long a chord in the sail? It just looks so wrong and extremely
dated.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 8:54am
What is the point of the traveller?  What does it do that can't be done by the kicker?  And if it does do something extra (or better) is it really worth the cost, hassle and sore shins?
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craiggo View Drop Down
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Post Options Post Options   Quote craiggo Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 8:46am
Norbert,

The Wayfarer world was a massive compromise given that it was being bolted onto a boat which could not be changed. I'm sure with a clean sheet of paper for the rig, it would not have looked like it does.

I'd be interested to hear what the balance of the helm is like with the kite up on the D1. It looks like significant lee-helm could build up especially in the lighter stuff when height will be required to keep it filling. Just from a visual point of view the whole rig looks like it needs to come back about 1.5-2ft but the would clash with the daggerboard so that would need to move aft but then that would clash with the traveller track!!!!
I cant beleive that the traveller is so important to the design that the position of the rig is based around it.

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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 8:44am

I think you've hit on an important point there Norbert. Having a clear design brief is key - it is easy to get carried away making the boat a little wider, a little lighter and with slightly bigger sails, to get an extra 3% performance. But at some point the boat will then be too much of a beast and only a few hardy souls would be able to sail it.

However, I've got to say that I don't find the D1 at all attractive, although I'm sure it is all top quality with the big names behind it. In some ways what it looks like doesn't matter, but in other ways it is vital because without even trying this boat, I am not a fan. It just looks wrong to my eyes - the concept I posted in another thread is much more to my taste. Sorry.

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Norbert View Drop Down
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Post Options Post Options   Quote Norbert Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 8:28am
Originally posted by craiggo


The spinnaker aspect ratio is far to low and gives the boat a kind of retro look, after all kites havnt looked like that since the early days of higher performance planing dinghies a la ISOs.
The low aspect ratio of the kite makes the rig look even further forward in relation to the hull and while not agreeing with GRFs technical reasoning on why this is bad, it does look pretty grim. I'd liken it to the assymetric disaster that is the Wayfarer World!!!


Well i'm sure that between them Luca Devoti and Phil Morrison will now recognise their mistake and adjust their designs to take into account your comments!!

Seriously though, there was thread on SA a short while ago where some guy had been experimenting with kites and had evolved smaller and lower kites that raised the manageability and control at only a small cost in terms of performance. I know I would be prepared to sacrifice the ability to get all out performance to be able to get round the course lap after lap. If I wanted on the edge performance i would sail an Asymmetric Canoe.
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Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 7:48am
Mike are you going to look at the kite as a bolt on option IE same as the Halo?
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blaze720 View Drop Down
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Post Options Post Options   Quote blaze720 Quote  Post ReplyReply Direct Link To This Post Posted: 02 Apr 09 at 11:57pm

OK OK ... we are nearly convinced.  We did the odd crude trial ourselves and have monitored the work of others.   We still have major doubts about whether you lot would really back it .. and by that we mean by throwing money at it in the form of deposits.  But ....

We will build one at least.  Yes - a sorted manufacturer evolved Blaze with a fully developed spinnaker and complimentary systems.  If it proves to be a bit off target mind you it will never see the light of day.  If it does hit the spot then we expect you to get the cheque books out and no messing around.  NO promises about 'gun turret' thingamees, monster (unneeded btw) foils or other frippery mind you.  .. And we think you had better go on the beer n pasta diets if you are really serious (some of you may wish to ignore this last bit ... if you are already in the zone) cos we don't think to many will be up to it.  This will be no soft option even for the lardies..

So when we finish 'Halo'  ....

Mike L.  (aka www.cirrusrace.com)  

 

 

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