| |  Re: performance
[Re: Timbo]
#86839
10/18/06 05:47 PM 10/18/06 05:47 PM |
Joined: Jul 2001
Posts: 1,200
Vancouver, BC Tornado 
veteran
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veteran
Joined: Jul 2001
Posts: 1,200
Vancouver, BC | Been There Done That!! ![[Linked Image]](http://home.worldonline.nl/~hbsmits/icaruslrg.jpg) Just wait until a Tornado shows up with Foils on it...
(Of course that's a joke)
Mike Dobbs
Tornado CAN 99 "Full Tilt"
| | | Re: performance
[Re: jimi]
#86840
10/19/06 09:34 AM 10/19/06 09:34 AM |
Joined: Jun 2001
Posts: 371
Michigan, USA sparky
enthusiast
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enthusiast
Joined: Jun 2001
Posts: 371
Michigan, USA | Obviously foiling will decrease dramatically wetted surface, which is the biggest aspect in terms of friction forces on boats. So theoretically a foiling cat should be faster than a non foiling cat (duh:)). This would be true if there was not any drag induced by the lifting component of the foils. But how much drag is that lifting component and what effect does that have on the whole race around the bouys? In the end, that is the real question. If it were easy, then Phill Brander's Blade F16 would have lifting foils, wouldn't it? Or maybe it will be on Blade II. F16 and C-Class and 18 Square Meter are all classes that race around-the-bouys, but none of the winners in these classes are using lifting foils from what I have seen. I think Cogito uses asymetric boards that are angled for lift, but I never saw a picture of it with both hulls lifted out of the water. foils sure made the Moths faster... This bodes well for the development of a foiling cat!
Les Gallagher
| | | Re: performance
[Re: sparky]
#86841
10/19/06 01:41 PM 10/19/06 01:41 PM |
Joined: Jun 2001
Posts: 9,582
North-West Europe Wouter
Carpal Tunnel
|
Carpal Tunnel
Joined: Jun 2001
Posts: 9,582
North-West Europe |
Currently there are no plans to make a full foiling or partially foiling F16. It is still not regarded to be a winning concept over all encountered conditions.
Personally I don't believe that full foiling is the route to succes anyway. If anything partial foiling is the way to go. This means that less then 100 % of the total weight is supported by the foils. The remainder is still in bouyancy mode (displacent). However no plans are considered of this setup either. For really effective partial foiling you need to use asymmetric foils which in themselfs are not particually handy in a crowded fleet. Pretty much the luff board needs to be raised while the lee one is fully lowered. This makes "banging a tack" rather problematic.
So don't hold your breath guys.
Wouter
Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands
| | | Re: performance
[Re: Wouter]
#86842
10/19/06 01:48 PM 10/19/06 01:48 PM |
Anonymous
Unregistered
| Anonymous
Unregistered
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Currently there are no plans to make a full foiling or partially foiling F16. It is still not regarded to be a winning concept over all encountered conditions.
Personally I don't believe that full foiling is the route to succes anyway. If anything partial foiling is the way to go. This means that less then 100 % of the total weight is supported by the foils. The remainder is still in bouyancy mode (displacent). However no plans are considered of this setup either. For really effective partial foiling you need to use asymmetric foils which in themselfs are not particually handy in a crowded fleet. Pretty much the luff board needs to be raised while the lee one is fully lowered. This makes "banging a tack" rather problematic.
So don't hold your breath guys.
Wouter
Classic Wouter, I love it. Matt | | |
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