Forums > Windsurfing Foiling

Foil for heavyweight

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Created by Imax1 > 9 months ago, 18 Dec 2017
CAN17
205 posts
17 Dec 2018 4:41AM
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WhiteofHeart said..

CAN17 said..




WhiteofHeart said..
If you go for the vini chat with philippe first, they are mostly advised for upto 95kg's, and warrenty doesn't apply for heavier riders! I really like my lok?, which is okay for riders upto 120kg's, if you're not jumping. The starboard would also be a good alternative I think. The pryde alu is really durable and tough, but doesn't offer a lot of lift (meaning you wont really be flying much earlier than 12 kts with a 9.5 or something with your weight. The AFS foils are also really stiff.






I find the pryde aluminium( blue) decent as a first foil. I pritty far from a heavy weight though (65kg) so can't really comment on durability in this case.

I decided to try and make a larger front wing 80cm in span with a chord length of 17.5! I'm thinking of making a larger rear wing aswell but am hesistent to since the aluminum gets so thin back there worried it may bend and I'm not sure it would help that much since I find I have a lot of back foot pressure already.

It is a shame brands are not really promoting big wings for heavy weights or just extra light wind in general.





If you have backfoot preassure, putting the washer in between the stab and the fuselage so the wing is angled downward more when its under your board will help shifting the preassure forward / increasing lift. The backwing doesn't push up, but it pulls down slightly, thats why its called a stabiliser. In the ideal situation (well designed foil and good match with the board / rider weight) the stabiliser gives a neutral preassure (or no preassure at all), because it is only meant to stabilise, which means inducing drag/lift when the foil is out of tilt and not doing anything when the foil is level.


Yes, I normally run with the one washer in the stabiliser so it is tilted down. I know the more angle you get tilted down the more stable and slower it will be, but....would a bigger stabiliser wing create more lift/ less back foot pressure?? Does the stab size not matter as much as the front wing for lift.

WhiteofHeart
104 posts
17 Dec 2018 2:52PM
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CAN17 said..

WhiteofHeart said..


CAN17 said..





WhiteofHeart said..
If you go for the vini chat with philippe first, they are mostly advised for upto 95kg's, and warrenty doesn't apply for heavier riders! I really like my lok?, which is okay for riders upto 120kg's, if you're not jumping. The starboard would also be a good alternative I think. The pryde alu is really durable and tough, but doesn't offer a lot of lift (meaning you wont really be flying much earlier than 12 kts with a 9.5 or something with your weight. The AFS foils are also really stiff.







I find the pryde aluminium( blue) decent as a first foil. I pritty far from a heavy weight though (65kg) so can't really comment on durability in this case.

I decided to try and make a larger front wing 80cm in span with a chord length of 17.5! I'm thinking of making a larger rear wing aswell but am hesistent to since the aluminum gets so thin back there worried it may bend and I'm not sure it would help that much since I find I have a lot of back foot pressure already.

It is a shame brands are not really promoting big wings for heavy weights or just extra light wind in general.






If you have backfoot preassure, putting the washer in between the stab and the fuselage so the wing is angled downward more when its under your board will help shifting the preassure forward / increasing lift. The backwing doesn't push up, but it pulls down slightly, thats why its called a stabiliser. In the ideal situation (well designed foil and good match with the board / rider weight) the stabiliser gives a neutral preassure (or no preassure at all), because it is only meant to stabilise, which means inducing drag/lift when the foil is out of tilt and not doing anything when the foil is level.



Yes, I normally run with the one washer in the stabiliser so it is tilted down. I know the more angle you get tilted down the more stable and slower it will be, but....would a bigger stabiliser wing create more lift/ less back foot pressure?? Does the stab size not matter as much as the front wing for lift.



Select to expand quote
CAN17 said..

WhiteofHeart said..


CAN17 said..





WhiteofHeart said..
If you go for the vini chat with philippe first, they are mostly advised for upto 95kg's, and warrenty doesn't apply for heavier riders! I really like my lok?, which is okay for riders upto 120kg's, if you're not jumping. The starboard would also be a good alternative I think. The pryde alu is really durable and tough, but doesn't offer a lot of lift (meaning you wont really be flying much earlier than 12 kts with a 9.5 or something with your weight. The AFS foils are also really stiff.







I find the pryde aluminium( blue) decent as a first foil. I pritty far from a heavy weight though (65kg) so can't really comment on durability in this case.

I decided to try and make a larger front wing 80cm in span with a chord length of 17.5! I'm thinking of making a larger rear wing aswell but am hesistent to since the aluminum gets so thin back there worried it may bend and I'm not sure it would help that much since I find I have a lot of back foot pressure already.

It is a shame brands are not really promoting big wings for heavy weights or just extra light wind in general.






If you have backfoot preassure, putting the washer in between the stab and the fuselage so the wing is angled downward more when its under your board will help shifting the preassure forward / increasing lift. The backwing doesn't push up, but it pulls down slightly, thats why its called a stabiliser. In the ideal situation (well designed foil and good match with the board / rider weight) the stabiliser gives a neutral preassure (or no preassure at all), because it is only meant to stabilise, which means inducing drag/lift when the foil is out of tilt and not doing anything when the foil is level.



Yes, I normally run with the one washer in the stabiliser so it is tilted down. I know the more angle you get tilted down the more stable and slower it will be, but....would a bigger stabiliser wing create more lift/ less back foot pressure?? Does the stab size not matter as much as the front wing for lift.


For the lift of the foil, the front wing is of way bigger importance. The stab is a nifty little thing to have aswell, but it doesnt change the characteristics of the foil as much. I think a bigger stab might slightly change the preassurepoint forward, but I have never tested this in practise. I have sailed with stabs with different profiles and layups, the changes it made to the characteristics of the foil were minimal, mostly increasing or decreasing pitch stability and a little upwind power. The best way to go about it would be shifting your front wing forward, or increasing the front wings surface to the front of the fuselage rather than the sides or back. It is also dependent on the board, the further back the straps and mastfoot, the further forward the preassurepoint would be. This is also a good point for heavyweights, since I have generally seen that heavyweights do better with the straps and masttrack a little further back than average. In boards you could think more in the range of the Jp Hydrofoil's specifications than the starboard boards, or for example the exocet RS81/91 or the Elix F1X. Most slalomboards and especially less radical boards than slalomboards have their straps set too far forward for use with most foils, with the prydes being at the extreme end of backfoot preassure, meaning they would have the most to gain in being combined with a dedicated board.

IndecentExposur
70 posts
17 Dec 2018 11:43PM
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I would stick to Carbon (if you can make it happen) masts. There is a ton of lateral loads on that, so the stiffer the better.

I love the Starboard foil system. You can start with a basic kit, and then get new parts to modify your experience. For you, you'll want a larger front wing... at least 1000cm. The longer the fuse, the more stable it will be. I agree with the above statements on mast height, go no shorter than 85cm.

CAN17
205 posts
18 Dec 2018 10:06AM
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I love the thought of having the lightest and strongest material but carbon is so much more$$.

If only pryde and others could make a extra strong AL mast, the current one is fine for light/meduim weights. It has a hollow inside. It Isn't beefed up at all near the mast head where we have heard it bend there by a few people on here. Not sure if they have fixed this with the 2019 version?? On the Pryde AL (2017/18) it seems the head is just welded on the mast, don't know that this is the strongest method, but mine has hung in there so far

CAN17
205 posts
23 Dec 2018 1:25PM
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Wonder if anyone has tried windfoiling with a sup or surf foil. I think it would give much greater lift (maybe too much) 2000cm/sq front wing sounds kinda big! Could allow a smaller sail size to be used, don't think a standard tuttle connection is smart but this is all just speculation. Heavy weights here are using them for surf
www.seabreeze.com.au/forums/Stand-Up-Paddle/Foiling/Foil-for-a-240-lbs-108kg?page=1#15

WhiteofHeart
104 posts
23 Dec 2018 7:30PM
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Select to expand quote
CAN17 said..
Wonder if anyone has tried windfoiling with a sup or surf foil. I think it would give much greater lift (maybe too much) 2000cm/sq front wing sounds kinda big! Could allow a smaller sail size to be used, don't think a standard tuttle connection is smart but this is all just speculation. Heavy weights here are using them for surf
www.seabreeze.com.au/forums/Stand-Up-Paddle/Foiling/Foil-for-a-240-lbs-108kg?page=1#15


The slingshot teamriders use humongous wings to get going with a small sail and have almost no sailpreassure. In my experience this kind of thing makes doing the sailtricks/foil360, flying tacks and that sort of thing a lot easier, however, an enormous wing coupled with an enormous board doesn't do much good, because a bigger board needs more speed to become stable as you're fairly far out on the rail. Still trying to wrap my head around the relation between boardsize/sailsize and wingsize as they are 3 components which in different combinations give very different feeling results. I also wouldn't be able to comment on the usability for a heavyweight, but it seems logical a way bigger wing would help the heavier weights. It is just that they also are so much slower which might pose a problem.

RAL INN
VIC, 2688 posts
25 Dec 2018 7:39AM
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They are slower which means you lose some apparent wind assist so maybe not get down to the smaller sail sizes.

Heliboy999
22 posts
23 Feb 2019 8:45PM
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Hi there.

First post on here.

I am 110 kgs and have been learning since last year.

I have the Naish Hover 144 and have the WS foil on a 70 cm mast.
I have replaced the front wing with the Surf XL wing with really good results.

I have done a series of videos following my progress and the last one was about the XL wing.

Have a look

&t=182s

Cheers



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"Foil for heavyweight" started by Imax1