Windfoil + wingfoil boards.

Foiling related talk in here
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BTB
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Re: Windfoil + wingfoil boards.

Post by BTB »

Inflatable wing foil boards seems a logical step. The board is not in contact with the water when flying so shape / rigidity is of less importance.

Why are there not more inflatable windfoil boards (with mast track?)
Jeroensurf
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Re: Windfoil + wingfoil boards.

Post by Jeroensurf »

Because when small movements have big impact an inflatable feels more vague as a hardboard.
That asks for a solid mastplate and high PSI to keep the construction stiff. More PSI needs more reinforcements=more weight so the benefits of a hardboard are getting smaller.
And as a bigger WING-hardboard is 5.8/175cm, the space they take can,t be really a good argument.
grantmac
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Re: Windfoil + wingfoil boards.

Post by grantmac »

Any details on that JP multisport inflatable? It's not on their website.....
Sailrepair
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Re: Windfoil + wingfoil boards.

Post by Sailrepair »

I don't have much info on the JP apart from their being a 130 and 150 ltr option. The foil box is supposed to be us tracks + a deep tuttle.
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ronnie
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Re: Windfoil + wingfoil boards.

Post by ronnie »

The JP Freefoil Air is advertised, mentioning but not showing the tracks.

https://www.tsunamisurfing.com/shop/foi ... -2021.html
Sailrepair
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Re: Windfoil + wingfoil boards.

Post by Sailrepair »

The specs on there seem somewhat mixed up with the smaller board being wider and heavier.

I will do a review as soon as I have it.
ronnie
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Re: Windfoil + wingfoil boards.

Post by ronnie »

Wingfoil waterstarts. He is using a GoFoil NL foil, which has sharp front wingtips, so has to be careful not to shred the windwing tip.

ronnie
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Re: Windfoil + wingfoil boards.

Post by ronnie »

I finally got the XXLW wings for the Zeeko Spitfire foil. It is known to work well for wingfoiling, but I read that it doesn't suit windfoiling. I haven't seen any explanation of what the issue is, so I tried it yesterday for a very short session in a 140m long pond with a 4.5m sail.

The wind dropped while I was rigging, and was gusty and stop/start so it was only occasionally enough to get it flying (I don't pump). I did get one 50m smooth, level glide where everything felt balanced, so I will keep trying it for windfoiling to find out how it behaves. I was having to force the other short flights and trying to find where my feet should be (strapless). I was advised to keep the sail and foil as close together as possible. The distance between the sail base and the front of the foil mast was 70cm, and I have found with other foils that when they are close together the directional stability reduces. The mast is 40cm, and I have a 70cm for it too. Both wings lift upwards and the total area is 1300 sq cm. The span of the large wing is 56cm.
4.5mxxlwsrl.jpg
xxlws.jpg
This is the Zeeko designer with the XXLW or a very similar foil to the XXLW.
Jeroensurf
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Re: Windfoil + wingfoil boards.

Post by Jeroensurf »

Interesting foil and a complete different approach as the other brands.
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Re: Windfoil + wingfoil boards.

Post by ronnie »

Jeroensurf wrote: Sun Feb 07, 2021 3:36 pm Interesting foil and a complete different approach as the other brands.
The designer explains some of the stronger attributes of the Spitfire foils. One disadvantage is that it doesn't pump as well as the current normal foils.


Jumping is another plus, in that the larger rear lifting wing is the one you take off with and the smaller front lifting wing is the one that lands first. That might be of relevance to wingfoil freestylers.

It may have some safety features - such as being narrow span and having blunt wing tips. With wingfoiling being more risky than windfoiling, that was one of the reasons I got the canard foil.

The centre of lift is just in front of the foil mast, so when the front wing breaches, your weight is not far in front of the rear wing, so the tendency to nose dive is reduced. With a normal foil, the leverage of the rear wing pushing down can move the centre of lift to in front of the front wing, so if the wing breaches and loses it's lift, it can nose dive hard.
I did breach the front wing on the Spitfire, but the landing was easy (it's also only a 40cm mast). It did seem to lose directional stability when the front wing breached and it turned downwind a bit, which might be related to using a sail. My rear foot was above the rear wing which was still lifting.
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