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Jack Sparrow View Drop Down
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    Posted: 29 Oct 14 at 1:12pm
If you are going to do anything like that. Don't put winglets on the mast, put a fence on the sail head (would only really work on a square head). Although this will be illegal in just about all class rules.
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Medway Maniac View Drop Down
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Posts: 2788 		Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 1:24pm
Originally posted by Jack Sparrow

If you are going to do anything like that. Don't put winglets on the mast, put a fence on the sail head (would only really work on a square head). Although this will be illegal in just about all class rules.

Sorry, I thought that was what people had in mind.  I can't see the masthead idea working at all.  Then again:

Originally posted by Rupert

It could well work better than a float bouncing around at the top of the mast

I am often amazed how little effect the huge bags our local 2k's use have on upwind performance.  I'd have expected them to be real speed-killers, but i've seen bag-men beat equally competent non-bag men on many occasions.
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Posts: 478 		Post Options Post Options   Quote iiitick Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 5:17pm
Actually it would be quite easy to set up a test rig and look into this. Broom pole, bed sheet, cardboard, hairdryer and Havana Cigar.
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Medway Maniac View Drop Down
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Posts: 2788 		Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 5:35pm
What are you on today, tick?  Can you sue Grumph for messing with your head?
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Posts: 478 		Post Options Post Options   Quote iiitick Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 6:08pm
Originally posted by Medway Maniac

What are you on today, tick?  Can you sue Grumph for messing with your head?

Ah, now. Just recovering back home from a very pleasant lunch in nice Peak District hotel, relaxing and thinking up 'bright' ideas. 
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I luv Wight View Drop Down
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Posts: 628 		Post Options Post Options   Quote I luv Wight Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 6:09pm
I was thinking of doing this on the moth a few years ago - with a triangular  ply board to make an end plate, the sail square head being  about the right angle.
OK a longer mast does the same thing, but class rules limit the length of the mast  and luff length.
There is ( or was ) an allowance of 10% of the sail area that isn't measured if it's at 90 degrees to the mast, so it could have worked as an addon - free area :-). 
But moths now need lower drag , not more power.

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iiitick View Drop Down
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Posts: 478 		Post Options Post Options   Quote iiitick Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 6:12pm
So the search is on for lower drag rigs....how did the wing sail go in the end?
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iGRF View Drop Down
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Posts: 6499 		Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 8:15pm
Well if it was marketed as a mast head float?

Would it be legal
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Medway Maniac View Drop Down
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Posts: 2788 		Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 8:27pm
Originally posted by iGRF

Well if it was marketed as a mast head float?

Would it be legal

Provided it actually functioned as a masthead float, it would be tricky to ban it without banning something that many find very necessary in some modern designs.

That would set the cat among the pigeons  Smile
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Posts: 6499 		Post Options Post Options   Quote iGRF Quote  Post ReplyReply Direct Link To This Post Posted: 29 Oct 14 at 8:46pm
Well fundamentally it's kind of a cooler more efficient mast head float and was how it evolved in my thinking.

Originally I was going to run an old kite leading edge up the mast, then I got to thinking about extending it, then the T foil thought process came into play, you know how these things go...
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