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Foiling F18... #255391
12/02/12 03:09 PM
12/02/12 03:09 PM
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Tony_F18 Offline OP
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This is pretty cool, it's a Tiger that had been fitted with foils.
According to the article they have had speeds up to 32kts:
http://www.searchmagazine.se/segling/news/view/2778

-- Have You Seen This? --
Re: Foiling F18... [Re: Tony_F18] #255392
12/02/12 03:34 PM
12/02/12 03:34 PM
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West coast of Norway
Rolf_Nilsen Offline
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32 knots in 7-10 meters a second.

Testing ended when a rudder foil broke (last pic).

Nothing about methods used for measuring speed. 10.000 karma points for pushing foiling smile

Re: Foiling F18... [Re: Rolf_Nilsen] #255396
12/02/12 05:30 PM
12/02/12 05:30 PM
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South Carolina
Jake Offline
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Originally Posted by Rolf_Nilsen
32 knots in 7-10 meters a second.

Testing ended when a rudder foil broke (last pic).

Nothing about methods used for measuring speed. 10.000 karma points for pushing foiling smile


Both pics show the broken rudder...they were still foiling without it!


Jake Kohl
Re: Foiling F18... [Re: Tony_F18] #255397
12/02/12 08:12 PM
12/02/12 08:12 PM
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MOONSHINE Offline
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That is really cool and looks like a lot of fun, but I would hate to see the F18 class with foiling daggerboards.

Re: Foiling F18... [Re: Tony_F18] #255399
12/02/12 08:41 PM
12/02/12 08:41 PM
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Karl_Brogger Offline
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I wouldn't worry about that. It's more likely a new class someday will pop up flying all over the place and obsolete the F16/18's


I'm boatless.
Re: Foiling F18... [Re: Jake] #255401
12/03/12 01:25 AM
12/03/12 01:25 AM
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West coast of Norway
Rolf_Nilsen Offline
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Originally Posted by Jake


Both pics show the broken rudder...they were still foiling without it!


I just read the swedish original text which said that the fun ended when one rudder foil broke.

It actually looks like they are foiling, and with no daggerboard/mainfoil applied as well on the windward hull. I can not even see the foil on the windward hull. Windward rudder is white while leeward is black. Looks kind of funny.

Re: Foiling F18... [Re: Tony_F18] #255402
12/03/12 03:13 AM
12/03/12 03:13 AM
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Tony_F18 Offline OP
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The windward rudder looks like the standard Tiger rudder.
I do hope the pics are real though, almost too good to be true smile

Re: Foiling F18... [Re: Tony_F18] #255403
12/03/12 03:28 AM
12/03/12 03:28 AM
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West coast of Norway
Rolf_Nilsen Offline
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Actually, the top picture shows the same setup. No main foil on the windward hull and it looks like the standard rudder is used.


Re: Foiling F18... [Re: MOONSHINE] #255405
12/03/12 06:47 AM
12/03/12 06:47 AM
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Jake Offline
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Originally Posted by MOONSHINE
That is really cool and looks like a lot of fun, but I would hate to see the F18 class with foiling daggerboards.


I really doubt that would happen. In this case, I bet its pretty in pictures while sailing at certain angles - but I bet it is unable to foil while sailing upwind and is very very slow. I also can't image using that from a practical standpoint - putting in boards from the bottom of the boat, clearing weeds (eeek!).



Jake Kohl
Re: Foiling F18... [Re: Jake] #255406
12/03/12 06:50 AM
12/03/12 06:50 AM
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Detroit, MI
mbounds Offline
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What keeps the board with the foil from rising up in the trunk? Just friction from the sideforce?

Re: Foiling F18... [Re: Jake] #255407
12/03/12 07:08 AM
12/03/12 07:08 AM
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Tony_F18 Offline OP
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Originally Posted by Jake

I really doubt that would happen. In this case, I bet its pretty in pictures while sailing at certain angles - but I bet it is unable to foil while sailing upwind and is very very slow. I also can't image using that from a practical standpoint - putting in boards from the bottom of the boat, clearing weeds (eeek!).



Maybe sooner than you think, there is an item on the agenda for the upcoming F18-WC meeting:
"18. To discuss Formula 18 handicap regarding curved Dagger board (Dutch class request):
Presentation to be forwarded by Dutch rep."

There is some more interesting stuff in the upcoming agenda though, interesting read.


Attached Files
Re: Foiling F18... [Re: Tony_F18] #255408
12/03/12 07:16 AM
12/03/12 07:16 AM
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Greenville SC
bacho Offline
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It appears they have no altitude controls on the foils? Does the text say anything about it?

Re: Foiling F18... [Re: mbounds] #255409
12/03/12 08:03 AM
12/03/12 08:03 AM
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Northfield Mn
Karl_Brogger Offline
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Originally Posted by mbounds
What keeps the board with the foil from rising up in the trunk? Just friction from the sideforce?


Likely a line that's kind of a downfucker. I think that's what they did on the L foils for the Viper/C2.

Weeds would be a nightmare.


I'm boatless.
Re: Foiling F18... [Re: Tony_F18] #255413
12/03/12 08:40 AM
12/03/12 08:40 AM
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South Carolina
Jake Offline
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Originally Posted by Tony_F18
Originally Posted by Jake

I really doubt that would happen. In this case, I bet its pretty in pictures while sailing at certain angles - but I bet it is unable to foil while sailing upwind and is very very slow. I also can't image using that from a practical standpoint - putting in boards from the bottom of the boat, clearing weeds (eeek!).



Maybe sooner than you think, there is an item on the agenda for the upcoming F18-WC meeting:
"18. To discuss Formula 18 handicap regarding curved Dagger board (Dutch class request):
Presentation to be forwarded by Dutch rep."

There is some more interesting stuff in the upcoming agenda though, interesting read.



This is the same class that disallowed having straight daggerboards canted in the hulls...I think it would be a pretty significant detriment to open up the rules to allow the boats to be equipped with daggerboards that cost $3,600. Price has already gotten out of control with boats well north of $20k.



Jake Kohl
Re: Foiling F18... [Re: Tony_F18] #255414
12/03/12 08:51 AM
12/03/12 08:51 AM
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Solomon's Island, MD
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samc99us Offline
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Not really sure its that big of a deal Jake, the long board price is already insane, breaking one may be an insurance claim for some people as is. Switching to curved boards wouldn't make matters exponentially worse. However you'd eliminate the existing fleet as the boat would need to be designed around the foils. This I don't see the council voting on. I could see them letting t-foils on the rudders but otherwise no big game changers.


Scorpion F18
Re: Foiling F18... [Re: samc99us] #255416
12/03/12 09:12 AM
12/03/12 09:12 AM
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Naples, FL
waterbug_wpb Offline
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refresh my memory, is the F18 a development class?

Are we developing these boats beyond the reach (fiscal and ability) of the average sailor?

If we are to build the fleet through new sailors, should they start with some other fleet(s) before moving to a relatively high tech (and narrow performance groove) F18 foiling fleet?

As it is, I could see an H-16 sailor moving rather easily to the F18 fleet. Minor changes in boathandling and spinnaker between the two.

Moving from an H-16 to a foiling (or semi-foiling) spin boat would probably take a lot more effort, time, and money - possibly discouraging many a "hobbyist" racer (those whom sailing is a sport, not a profession)

Last edited by waterbug_wpb; 12/03/12 09:14 AM.

Jay

Re: Foiling F18... [Re: Tony_F18] #255421
12/03/12 09:34 AM
12/03/12 09:34 AM
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Northfield Mn
Karl_Brogger Offline
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A good example of wild changes helping a class is the Moth. Hell, I want one, and I'm a cheap butt.


I'm boatless.
Re: Foiling F18... [Re: Tony_F18] #255422
12/03/12 10:00 AM
12/03/12 10:00 AM
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Solomon's Island, MD
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samc99us Offline
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No one has shown a fully flying F16/F18/F20 to be faster round the course than a stock boat. Until such time the discussion is pretty moot.


Scorpion F18
Re: Foiling F18... [Re: samc99us] #255423
12/03/12 10:06 AM
12/03/12 10:06 AM
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West coast of Norway
Rolf_Nilsen Offline
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Originally Posted by samc99us
No one has shown a fully flying F16/F18/F20 to be faster round the course than a stock boat. Until such time the discussion is pretty moot.



Bravo, I agree!

Re: Foiling F18... [Re: Karl_Brogger] #255427
12/03/12 11:46 AM
12/03/12 11:46 AM
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South Carolina
Jake Offline
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Originally Posted by Karl_Brogger
A good example of wild changes helping a class is the Moth. Hell, I want one, and I'm a cheap butt.


Of the people I knew that held that opinion, it changed after they actually sailed one. They're tough to sail...really tough to sail well.


Jake Kohl
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