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Medway Maniac View Drop Down
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Joined: 13 May 05
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Posts: 2788 		Post Options Post Options   Quote Medway Maniac Quote  Post ReplyReply Direct Link To This Post Topic: R Speculation
    Posted: 08 May 14 at 9:11am
Good news for you, Rupert.  You will be able buy a discarded 9 rig for your Minisail!
Wilsonian SC
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kneewrecker View Drop Down
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Posts: 1586 		Post Options Post Options   Quote kneewrecker Quote  Post ReplyReply Direct Link To This Post Posted: 08 May 14 at 9:43am
Originally posted by Medway Maniac

Good news for you, Rupert.  You will be able buy a discarded 9 rig for your Minisail!

rooster 8.1 rig on the Facebook dinghies group going dirt cheap too.....

couple that with an old wooden tillered Kirby Torch shed, knock an XD kit together out of the crap in the bottom of the tool box and come show these Aeros, Zeros and Fires a thing or two.... for a 1/6th of the price. LOL 
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kneewrecker View Drop Down
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Posts: 1586 		Post Options Post Options   Quote kneewrecker Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 12:57pm
nice little video on the homepage with regards the Foil design  Thumbs Up
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Rupert View Drop Down
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 1:25pm
Is great to get these little snippits about the boat. Looking forward to seeing a few more.
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
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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: 09 May 14 at 2:21pm
The knuckle/taper  "reduces the heeling moment" and "improves efficiency" - my *ss!  

Not in fact a lie, but it will likely reduce the lever arm between the centres of pressure of rig and centreboard from something like 2.99m to 2.98m if you're lucky, I'd guess.

As for the efficiency improvement that will be lost in the vastly higher sum of all the other drag forces.

But OK why not, even if it's not actually worthy of crowing over as a selling point?  Well, if you don't preserve the optimum section profile over the tapered part, you could actually make things worse; the reason you're often better off not tapering the planform of home-made foils.  Hopefully that won't be the case now we have CAD and CNC, but I'm just saying...
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hobbiteater View Drop Down
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Joined: 07 Dec 12
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Posts: 107 		Post Options Post Options   Quote hobbiteater Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 3:51pm
from 1983
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craiggo View Drop Down
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Posts: 1810 		Post Options Post Options   Quote craiggo Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 6:00pm
There is a bit of a difference in how the glider wing and the aero foils are built that explains the time difference.
As ever a load of marketing guff based on optimum theory. Take the foil out of its optimised design point and a rectangular plank with a rounded leading edge would perform just as well. We seem to live in an era of willingness to buy into every 0.1% increments, whether it be sailing, cycling or all manner of everyday applications. In almost all cases it only actually matters to about 0.1% of the users, the rest of the buyers just enjoy the smugness of having purchased something they will never gain from. Each to their own!
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kneewrecker View Drop Down
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Posts: 1586 		Post Options Post Options   Quote kneewrecker Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 6:12pm
So it's just more vapour? Shame, that one had me interested :-(
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Jeepers View Drop Down
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Posts: 147 		Post Options Post Options   Quote Jeepers Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 9:45pm
and "improves efficiency" - my *ss!

Well, come on, design something better, invest in it, market it, sell it, make a decent living, then I (for one) will send you a little icon that claps its hands!
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Jeepers View Drop Down
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Posts: 147 		Post Options Post Options   Quote Jeepers Quote  Post ReplyReply Direct Link To This Post Posted: 09 May 14 at 9:46pm
Forgot this
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