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In every dream home..

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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Topic: In every dream home..
    Posted: 05 Mar 17 at 11:38am
Presumably the wings will be max width (no point in them being narrower) so being upswept must increase the righting moment as the boat heels to windward to the point when the wing is horizontal?
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iGRF View Drop Down
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Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 11:49am
Nope I still make the argument that if you follow the logic,
1) They are closer to the centre line.
2)They permit the rig to be hauled further to windward without dipping in the water thus reducing the sail area presented to side forces and generating more upward lift vector without over cooking the righting moment and going in to weather.

That means less righting moment, but more versatility with the righting moment available.

I reckon.


Or.. sudden thought they are actually wider, but being curved upward remain within whatever measurement defines how wide they can be, then they do all that stuff I said up there anyway.

But they certainly look kewell and I hope it blasts to the front of the fleet.

Edited by iGRF - 05 Mar 17 at 11:52am
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 12:35pm
As long as the wing to wing measurement is no more than 2250mm they are legal, the more they angle upwards (the curve may be ergonomic but makes no difference to max leverage) the longer that can be (from hull to tip) without exceeding the max width measurement. Leverage increases until the windward wing is horizontal. That is compounded by the fact that the roll centre of the boat is a couple of feet below the hull when foiling so the righting actual moment is the horizontal distance between the RC and the end of the wing.

And, yes, it does look very jewell 


Edited by Sam.Spoons - 05 Mar 17 at 12:37pm
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 12:39pm
Another thought, are they curved so you don't just slide off them when the boat is sailing nearer to upright?
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 5:37pm
they may be really springy, when sat on they could flatten out ?????
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Rupert View Drop Down
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 5:41pm
Originally posted by 423zero

they may be really springy, when sat on they could flatten out ?????


Would be a novel approach, one I'd love to see in action, as they go to sit out the wing spits them backwards into the water.
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 6:08pm
Or tosses them over the rig (I wondered why they call them trampolines) :)
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 6:21pm
would be interesting to see what would happen in waves un-damped spring  Big smile do foiling moths bob in waves ? can't say I know much about them.
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 6:26pm
From what I've seen on youtube foiling Moths bob all the time until the pilot becomes pretty skilful  LOL
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RS400atC View Drop Down
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Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 05 Mar 17 at 7:40pm
I'm still struggling with why the leeward wing presenting itself as a damn great near-vertical surface in the airflow isn't a very bad idea?
Or is it working as a sail?

Anyone?
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