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    Posted: 05 Oct 09 at 4:59pm

Originally posted by turnturtle

Thanks SimonW99- good explanation.

I guess with a big old mainsail like that it's going to scream on the close
reaches without the kite.   It'll be interesting to see it line up against Mike's
new HALO concept, the Blaze is blisteringly quick on a close reach, so I can
only imagine what differences the HALO rig can add.

The D-One was fantastically fast reaching up and down on Sat in a F5 without the kite. It annoyed a few windsurfers (which can't always be a bad thing)

Tim
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 4:32pm
Originally posted by matbard

Hello Timg,

As suggested by Luca Devoti and Michele Tognozzi, you should cleat the mainsail at maximum while you sail close hauled. You have to play with the traveller to twist the mainsail and depower, but NEVER put the traveller on the centreline or - worse - upwind! As in the Finn, in light winds you have to mantain a minimum twist putting the traveller about a span downwind, and in strong winds pull the cunningham hard and push the traveller to the limit.

For running, ease the mainsheet enough to keep the boom inside the boat, hoist the gennaker ant try to keep the leaches parallel.

My D-One (not sailed by me...) planed upwind in it's first regatta at 7.2 kts measured from a GPS device.

Thanks Matteo I shall try that next Sat.

Tim
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 4:30pm

now now boys!

It is clear that the D-One seems to take a lot of Finn into consideration in the way it needs to be sailed.

One thing I would say that is completely different, in case people are put off by the sound of "it's like a Finn" so it must a beast to sail, is that when I took it out for a blast on Sat even with the wings on the "inner" setting I didn't feel it was majorly hard work to control.

Tim
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Posts: 351 		Post Options Post Options   Quote Norbert Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 3:44pm
Semantics semantis, grow up you fool

Originally posted by turnturtle

Originally posted by Norbert

About as predictable as the sun coming up in the
morning TurnTurtle can't resist taking a pop at anything about the
D1.And they say the Italian guys are bad
Originally posted by turnturtle

interesting
mast bending... seems to be dumping power in what, a
F2...


that's not a pop- I said it was 'interesting', I then got a great explanation
from SimonW99 which I thanked him for- this is a Dinghy Development
area, where I hope we can ask open questions without being criticised?

The one thing you can't take away from the D-One is its Finn heritage,
where let's be fair there's been more investment into unstayed rig
development than in nigh-on any other class.

btw- this is a 'pop'- get knotted Norbert and learn to read, you plank!
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About as predictable as the sun coming up in the morning TurnTurtle can't resist taking a pop at anything about the D1.

And they say the Italian guys are bad

Originally posted by turnturtle

interesting mast bending... seems to be dumping power in what, a F2...




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Posts: 0 		Post Options Post Options   Quote Guest Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 2:37pm
Originally posted by timg

When I hardened up I went a hell of a lot quicker, so I think it's hiking all the way to get speed.

That is what I figured would happen ... you guys are going to be hiking animals

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Posts: 46 		Post Options Post Options   Quote matbard Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 2:25pm

Hello Timg,

As suggested by Luca Devoti and Michele Tognozzi, you should cleat the mainsail at maximum while you sail close hauled. You have to play with the traveller to twist the mainsail and depower, but NEVER put the traveller on the centreline or - worse - upwind! As in the Finn, in light winds you have to mantain a minimum twist putting the traveller about a span downwind, and in strong winds pull the cunningham hard and push the traveller to the limit.

For running, ease the mainsheet enough to keep the boom inside the boat, hoist the gennaker ant try to keep the leaches parallel.

My D-One (not sailed by me...) planed upwind in it's first regatta at 7.2 kts measured from a GPS device.
- Matteo Barducci
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 12:56pm
James Correct, welcome to a flexible depowering rig even in a two. I
think there is a general misconception that stayed stiff rigs are the
only real way to go. Provided the sail is large enough, the rig matchs
and they are both matched to the weight and design of the boat,
theoretically the rig should bend from low wind speed if you are going
to maximise power throughout the wind ranges.

Clearly it would be possible to get this very wrong, but I expect That
they will have done a pretty good job of it for the sort of courses it is
designed for. That is the key, as the RS100 is using stays to make it
more of an allrounder I.e perhaps more able to carry a kite on some
legs of our club triangles. That said, with a mainsail the size of the D-
one and the Halo, the spinnaker of the D-one is probably only
necesary on a run.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 12:21pm

Originally posted by turnturtle

yes very valid point there Rick, but with 'relatively' small gennakers we'll no
doubt soak for respite... and you could argue that adding the kite isn't about
performance enhancement, it's simply about adding a new dynamic to the
downwind experience that some, like me, find sadly lacking in conventional
unarigs.

I am not sure that soaking will help, in a photo on my blog you will see me sailing it exactly like a 400, and that was not fast, obviously there is no wing wang so going deep is not an option.

When I hardened up I went a hell of a lot quicker, so I think it's hiking all the way to get speed.

Going to your point about mast bend, I have been told that I needed moremainsheet tension which, I learned this weekend, really controls how much it spills off, so by sailing like that, I was wasting a load.

There is no doubt about it, in some the gusts, as you would expect, I had to go deeper and deeper.

Tim
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Posts: 0 		Post Options Post Options   Quote Guest Quote  Post ReplyReply Direct Link To This Post Posted: 05 Oct 09 at 12:17pm

Originally posted by turnturtle

yes very valid point there Rick, but with 'relatively' small gennakers we'll no
doubt soak for respite... and you could argue that adding the kite isn't about
performance enhancement, it's simply about adding a new dynamic to the
downwind experience that some, like me, find sadly lacking in conventional
unarigs.

It will depend on the polars for the boats.

With the 200 I found that it always paid to soak unless it was quite breezy as the kite is small.

With most assy boats you get much better downwind VMG by sending it and I suspect both the D1 & the 100 will be the same so if you soak for a rest you will get thrashed in a fleet as the hikers roll over the top of you at speed.

Perhaps a case for making the kite small such that it is always better to soak 200 style, but where is the fun in that?
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