his week Fergie and I took the F20c out for some fun in the last few warm days left for the season here in Holland. We had been experimenting with some full foiling tricks whilst shooting the promo video for the boat in Hyeres the week prior. Without the video crew around we took the chance to have a bit of fun with the boat. We mounted a Go Pro on the end of the spi pole and went for a blast, with around 12kts breeze it was perfect conditions to see what we could do. Clearly we are not going for speed in most of the shots, instead we wanted to get the boat lifting on the foils and see what happens when you run too much foil, and stand too far aft... The result is a lot of fun once you get used to it and we came back in with big smiles and some cool video!
Nice vid!
Is it an optical illusion because of the water or do the lee-boards bend inward quite a bit when loaded?
maybe a bit of bending...
The boards are a lot stiffer than an F18 board, so imagine how much they are bending before you break an F18 board!!
AWESOME vid macca.
Love the toon too.
Is it an optical illusion because of the water or do the lee-boards bend inward quite a bit when loaded?
I was going to ask the same thing.
Looks like you guys were having alot of fun, and I'd like to try one someday.
Tad, you need to get on that for me....
Is it an optical illusion because of the water or do the lee-boards bend inward quite a bit when loaded?
Might be the parallax makeing it look worse than it is; remember the boards are already curved a fair way under and as soon as the boat heels they move upwards quite quickly!
its not bad to have the boards bending, its simply a factor of the loads involved.
I have seen images of Moth foils bending dramatically, and they have a total weight including human of less than 100kg, the F20c has a sailing weight of more than 300kg so you can imagine the comparative loads on the foils!
How much is it to replace a board again?? <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />
.
I think we are too scared to know.
It's comparable to an F18 board in price/size ratio
why dont u guys put the F20c up for the commonwealth games?
Good answer! LOL.
WOW!
FUN!!!! looks like your trying to leap out of the water. wonder if you can downwind with the spin
WOW!
FUN!!!! looks like your trying to leap out of the water. wonder if you can downwind with the spin
Watch the clip again. At times they do have the kite up!
Suppose the question has to be asked. How long before we see T-foil rudders.
WOW!
FUN!!!! looks like your trying to leap out of the water. wonder if you can downwind with the spin
Watch the clip again. At times they do have the kite up!
Ahhh, i see it now. i was so fixated on the boards/hulls that i didn't even notice it. awesome
also great music and editing
I get this when I try to watch with a german ip:
This video contains content from UMG. It is not available in your country.
So I try with a proxy server that leads to the result
Nacra F20 Carbon Freestyle
by nacra300 but the video window remains black and I've no loading activity.
Any hints how a german user can see that? Hm... or can you Macca publish another version without that copyright powdersnow rock *g*? Thanks!
What about watching it from here?
It is not available again... Thank you Karl but it's the same UMG story. What's the idea behind that? Why can you watch it and Germany not?
The commencement of the fourth reich?
It's a copyright problem. I'll PM you how you can watch it.
Okay I found the answer. Its a legal dispute between youtube and our organization GEMA that works for artists and their copyrights, earnings when their music is played in public.
For our german friends: http://db.tt/C1FQr6r
Let me know it that works.
Blame Google.
Thank you guys. BLR I can't try your proposal cause I have no account there. Tony your link works fine <img src="<>/smile.gif" alt="smile" title="smile" height="15" width="15" />
Really interesting movie. It looks like when the boat is coming out of the water it loses speed for some reason and falls down, again takes up speed and falls again ... did somebody ever try the F20 with straight boards? Do the curved ones really make a big difference?
Sorry about the video not being available in GER...
but its good to see you have worked around it.
We tested two platforms over more than 12 months, comparing the straight and curved boards. There was never any situation where the curved boards were slower. So it was an easy choice!
When you are full foiling the boat slows down, its just for fun that we are flying so high with it.
The quickest mode is in the middle part of the video, where we are twin trapezing downwind, the leeward board is up a little bit and the windward board is up a lot more.
any ideas of the speeds at that sweet spot?
Why bother then to put curved boards on then if the quickest part is when the boards are raised somewhat, you would be better off with inclined boards in that case.
The A camp has the curved boards in the not sure camp still and many are complaining of the number of broken boards + the time needed to raise one board to get best effect, Me thinks the jury maybe still under deliberation.
As to the minscule little bit of
jump
mode followed by immediate slow down of the boat ( induced drag of the foil breaking back into the water is more than if the foil was in the water ), nah find a boat wake and then you would see some real air time .
I noticed they where sailing with the windward board fully raised going upwind yesterday as well, even though the wind was quite light.
Why bother then to put curved boards on then if the quickest part is when the boards are raised somewhat, you would be better off with inclined boards in that case.
The A camp has the curved boards in the not sure camp still and many are complaining of the number of broken boards + the time needed to raise one board to get best effect, Me thinks the jury maybe still under deliberation.
As to the minscule little bit of
jump
mode followed by immediate slow down of the boat ( induced drag of the foil breaking back into the water is more than if the foil was in the water ), nah find a boat wake and then you would see some real air time .
We raise the boards a little bit depending on the wind strength, we start off with the board down and then once you are trapping fully downwind, then we raise it a little and then we go back down fully in really windy stuff. Also wave state plays a part in the balance too, so its a lot more complex to get the most out of the boat compared to a F18 but the reward is a very quick machine.
The reason the A class guys are not fully converted to the curved foils is for a number of factors:-
1. The limited amount of foil curve/length allowed under the rule
2. The A cat is narrow anyhow and the curved foils reduce the righting moment even further
3. The A cat is not adding any sail area downwind and as such the foil effect is not as apparent.
We had 2 M20's which were identically rigged and both had interchangeable daggerboard slots, we did many, many hours testing and the result was very clear: The Curved board boat was always quicker.
And Inclined boards are not even close to as good as the curved boards in that application. We have some pretty good designers... and from their assessment it wasn't even worth exploring.
In the video we are just playing around with the boat, jumping it a bit and having a bit of a laugh. When you have the boat in full speed mode, it looks pretty boring.. just hammering along faster than you think is decent for any sailboat!