DIY wingfoil harness?
DIY wingfoil harness?
Hey guys. So far I've been wingfoiling with my windsurf harness. I don't really mind the bulk, and it saves my arms when going upwind, which I need to do a lot because I suck and end up downwind often 
I tend to ride the wing like a typical windsurfer, cruising around (now with more upwind range) instead of surfing waves, and the harness is really beneficial in this mode.
One aspect of this has been really annoying me – unlike a windsurf sail, the wing moves around vertically quite a bit, sometimes you want it lower down, other times higher up, depending on wind and where you're going. The problem is, because my harness hook is way below my chest, the ideal length of harness lines varies depending on the wing position: when the wing is low, you need shorter lines to keep tension in them, when the wing is higher up, you need longer lines or else the wing will be too close to your face. So I have to set it for something average, and then get annoyed at the lines falling off the hook or my arms not being long enough.
I've been thinking to make some kind of custom harness where the hook would be at the chest level. That way the harness lines would be more inline with your arms (instead of forming a triangle between your arms, lines, and the hook), so this should reduce this problem. I'm not sure if it's a good idea, but might be worth a shot?
I'm wondering if anyone has done something similar, or just in general what are your thoughts on this?
I looked at various specialized winging harnesses, but they all seem to be designed for the waist, just like windsurfing harnesses (but with less bulk). Not sure why. Maybe I'm missing something. Mostly I think it's because other people usually wing to surf waves, which doesn't really require a harness. But aside from getting tired when going upwind, I just want to get more of this locked-in windsurf feel, instead of worrying about my harness lines falling out.
I tend to ride the wing like a typical windsurfer, cruising around (now with more upwind range) instead of surfing waves, and the harness is really beneficial in this mode.One aspect of this has been really annoying me – unlike a windsurf sail, the wing moves around vertically quite a bit, sometimes you want it lower down, other times higher up, depending on wind and where you're going. The problem is, because my harness hook is way below my chest, the ideal length of harness lines varies depending on the wing position: when the wing is low, you need shorter lines to keep tension in them, when the wing is higher up, you need longer lines or else the wing will be too close to your face. So I have to set it for something average, and then get annoyed at the lines falling off the hook or my arms not being long enough.
I've been thinking to make some kind of custom harness where the hook would be at the chest level. That way the harness lines would be more inline with your arms (instead of forming a triangle between your arms, lines, and the hook), so this should reduce this problem. I'm not sure if it's a good idea, but might be worth a shot?
I'm wondering if anyone has done something similar, or just in general what are your thoughts on this?
I looked at various specialized winging harnesses, but they all seem to be designed for the waist, just like windsurfing harnesses (but with less bulk). Not sure why. Maybe I'm missing something. Mostly I think it's because other people usually wing to surf waves, which doesn't really require a harness. But aside from getting tired when going upwind, I just want to get more of this locked-in windsurf feel, instead of worrying about my harness lines falling out.
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jim mckenzie
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Re: DIY wingfoil harness?
Way, way back at the very beginning we had chest harnesses. Like a life jacket, your arms go through straps and it buckles at your chest along with the hook. It should work for you by the sounds of your requirement. The hook is on a plate only about 3 inches square, haven't seen one for a long time. Seems like a good plan though. Maybe you'll bring 'em back.
Last edited by jim mckenzie on Mon Nov 15, 2021 12:34 pm, edited 1 time in total.
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more force 4
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Re: DIY wingfoil harness?
I may have a chest harness in the bottom of a tote. Won it racing longboards in 1981. 
Yeah I think they would work, but the originals were just webbing going to a hook with webbing slots on a plate. They must have had a quick release given we were using simple braided rope without even tubing to stiffen it. Not for use in surf!!!!
Yeah I think they would work, but the originals were just webbing going to a hook with webbing slots on a plate. They must have had a quick release given we were using simple braided rope without even tubing to stiffen it. Not for use in surf!!!!
Re: DIY wingfoil harness?
I made a diy out of 4" webbing, with overlapping 4" velcro stitched to it. Then stitched a 1.5" x 14" webbing with NSI wing ding hook across the front that allows the NSI hook to slide from side to side. Sits about at the bottom of my sternum. Loved it in the summer, pointless in the winter. But I only used it for 6 sessions then the leash attachment on my wing ripped out (Thanks CKR for the repair).
The velcro never budged, my crudely stitched 1.5" webbing slider never ripped and the 4" webbing is plenty of support if you've got an impact vest underneath. Wings don't pull even 1/10th as hard as a kite, so no need for a carbon fiber reinforced harness taking up half your back.
One other thing I noticed is that as you go down in foil size, there's significantly less hand kite pull on your hands since the power in the wing gets transferred into speed vs drag of bigger foils. An extreme example would be riding a 25L surfboard with a wing. Kai Lenny called it "an arm pump." Between switching to a faster foil and having to navigate head high swell upwind and flagging downwind, I find there's no point in a harness this time of the year. And maybe not in the summer either as a lot of us will be down around the 6-900cm2 foils by next year.
The velcro never budged, my crudely stitched 1.5" webbing slider never ripped and the 4" webbing is plenty of support if you've got an impact vest underneath. Wings don't pull even 1/10th as hard as a kite, so no need for a carbon fiber reinforced harness taking up half your back.
One other thing I noticed is that as you go down in foil size, there's significantly less hand kite pull on your hands since the power in the wing gets transferred into speed vs drag of bigger foils. An extreme example would be riding a 25L surfboard with a wing. Kai Lenny called it "an arm pump." Between switching to a faster foil and having to navigate head high swell upwind and flagging downwind, I find there's no point in a harness this time of the year. And maybe not in the summer either as a lot of us will be down around the 6-900cm2 foils by next year.
Re: DIY wingfoil harness?
Heh, everything old is new again I guess. Couldn't find any photos online of those chest harnesses, but I can imagine from your description.
Good to know that smaller foils produce less sail pull. That makes sense. Currently I'm on a 1550 cm^2 front wing, going down to 1250 and maaaybe 1050 next year.
Here's what I'll try – put a harness hook on a waist belt and just put in on higher up. Hopefully I'll be able to attach both wing and board leashes to this same belt without much interference, but if not, then I'll keep them on another waist belt. I know I could've used a more minimal hook, but this is what I have lying around. The plastic hook would cost $65 USD incl. shipping. If this works maybe I'll upgrade to something like this, but I don't think it will fit over the chest and over the impact vest, since it's designed for the waist.
Good to know that smaller foils produce less sail pull. That makes sense. Currently I'm on a 1550 cm^2 front wing, going down to 1250 and maaaybe 1050 next year.
Here's what I'll try – put a harness hook on a waist belt and just put in on higher up. Hopefully I'll be able to attach both wing and board leashes to this same belt without much interference, but if not, then I'll keep them on another waist belt. I know I could've used a more minimal hook, but this is what I have lying around. The plastic hook would cost $65 USD incl. shipping. If this works maybe I'll upgrade to something like this, but I don't think it will fit over the chest and over the impact vest, since it's designed for the waist.
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Re: DIY wingfoil harness?
That'll work perfectly when in harness mode. But might get in the way paddling in/out. And the board leash might pull it down, which would be hard to get back up out there. Might want to go back to a wrist leash for the wing and calf for the board until you're certain the harness belt will stay up there.
I'd try a 1125 or 925 before you go for a 1250/1050. The thin HA wings are much more forearm friendly. Was out on the Sabfoil w1000 (similar to 925) today and zero forearm pump, even with 3mm gloves. Although I did weaken my gloves at the proximal interphalangeal joint with a soldering iron. Which allows your fingers to bend freely.
I'd try a 1125 or 925 before you go for a 1250/1050. The thin HA wings are much more forearm friendly. Was out on the Sabfoil w1000 (similar to 925) today and zero forearm pump, even with 3mm gloves. Although I did weaken my gloves at the proximal interphalangeal joint with a soldering iron. Which allows your fingers to bend freely.
Re: DIY wingfoil harness?
Thanks, good point, one more reason to attach leashes to a separate waist belt. I will be the king of belts.
I thought about HA foils, but I don't feel very safe with them being so wide and pointy, and even though they glide better they also have drawbacks, overall harder to use for noobs, even if not significantly so. My skills aren't there yet, and anyway windsurfing is still the plan for real high wind. The 1250 is a newer mid-aspect design compared to both the current 1050 model and my v1 1550 so it should be a nice improvement already. I will re-evaluate my opinions on HA foils after I try the 1250 at least. Maybe they'll come up with a newer mid-aspect 1050 by that time...
I thought about HA foils, but I don't feel very safe with them being so wide and pointy, and even though they glide better they also have drawbacks, overall harder to use for noobs, even if not significantly so. My skills aren't there yet, and anyway windsurfing is still the plan for real high wind. The 1250 is a newer mid-aspect design compared to both the current 1050 model and my v1 1550 so it should be a nice improvement already. I will re-evaluate my opinions on HA foils after I try the 1250 at least. Maybe they'll come up with a newer mid-aspect 1050 by that time...
Re: DIY wingfoil harness?
Guys have cut minimalist hooks out of thick cutting board and report they hold up very well plus slide to the side easily. Would be a low cost experiment.
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Swangtang
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Re: DIY wingfoil harness?
I remember hearing in a video from the most recent AWSI trade show that the wings only put like 7 Ibs of pressure on the hook so the harness doesn't need to be very robust. Cutting a hook out of HDPE/ cutting board is a great idea!
Re: DIY wingfoil harness?
Except when you blow up at high speed hooked in. Your body drops well below the water while the wing stays at the surface. The higher hook should help with that, but it's still hard on the wing. My strike only made it 6 sessions before tearing the strut dacron.
Re: DIY wingfoil harness?
Thanks, I didn't realize that could be a problem. I wonder if a weak link on the harness line would work to prevent damage to the wing (since there isn't much pressure in normal operation).
I'm currently using windsurf harness lines which can velcro to the wing's handles without needing to uh... "take the boom apart" in windsurf terms. With such construction, if the velcro were to slip, the lines would detach from the boom / handle. But the velcro is very strong. Maybe I can weaken it on one side, so that it disengages when (let's say) ~15kg force is applied.
Then it will stay engaged under normal sailing conditions, but fail and disconnect in case of crash. I don't think you're supposed to jump hooked in on a wing, so no problems there either.
I'm currently using windsurf harness lines which can velcro to the wing's handles without needing to uh... "take the boom apart" in windsurf terms. With such construction, if the velcro were to slip, the lines would detach from the boom / handle. But the velcro is very strong. Maybe I can weaken it on one side, so that it disengages when (let's say) ~15kg force is applied.
Then it will stay engaged under normal sailing conditions, but fail and disconnect in case of crash. I don't think you're supposed to jump hooked in on a wing, so no problems there either.
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tweezer
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Re: DIY wingfoil harness?
I made a light weight harness from an old backpack belt and a windsurf harness hook. It works well if you leave it a little loose, you can twist it to the side when paddling. Helps for longer sessions with lots of upwind drives.
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Tsawwassen
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Re: DIY wingfoil harness?
I saw this on a wingfoil chat. This guy used a 3d printer to make his own.
Has anyone tried one of these? $30 at Silent sports.
Re: DIY wingfoil harness?
I have both those styles. The Ride engine is better because it comes apart so easier to install or switch belts/harnesses.
It works!
I finally tried wing foiling with the chest harness setup that I posted a photo of earlier this year. It has been game-changing, much better than having the hook at waist level. My hands aren't getting tired anymore! So good.
As I expected, the chest position lets you move the wing up and down conveniently while hooked in, without disengaging when moving the wing down, or the line feeling too short when moving the wing up. Also, because the wing now sits higher (compared to when the hook is at waist level), the wing tips are much less likely to catch on the water when you're hooked in. I can even sail hooked-in while in displacement mode (off the foil) to relax for a bit. Awesome.
I'm using a single 28" long wingsurfing harness line, connecting it to the wing's handles. Important to get a model of harness lines that can be put on "without removing the boom", in windsurf terms. Severne and others make them.
The observed downsides all have to do with my hacky implementation:
1) I can't easily put the belt/hook on (or off) myself because I need to velcro up between my shoulder blades
2) The belt can both ride up (pressing on my armpits) and ride down (becoming a loose belt over my waist)
Luckily these are fixable with the right gear.
I wish I could sew the belt (or even just the hook) to my impact vest, but the vest's fabric is flexible, it doesn't have any hardpoints. Whatever I do would probably fail and ruin my vest during a wipeout eventually.
Another unrelated feature I want are quick release handles for wing and board leashes. Right now I'm avoiding foiling in the river current because I lack those safety features. I think if I get a paddling-style PFD this might solve all of my problems. Such PFDs typically have webbing straps that I could sew or tie stuff to. I will look around in local shops.
Also I need to get myself one of those 3D printed hooks, will save a bit of weight.
As I expected, the chest position lets you move the wing up and down conveniently while hooked in, without disengaging when moving the wing down, or the line feeling too short when moving the wing up. Also, because the wing now sits higher (compared to when the hook is at waist level), the wing tips are much less likely to catch on the water when you're hooked in. I can even sail hooked-in while in displacement mode (off the foil) to relax for a bit. Awesome.
I'm using a single 28" long wingsurfing harness line, connecting it to the wing's handles. Important to get a model of harness lines that can be put on "without removing the boom", in windsurf terms. Severne and others make them.
The observed downsides all have to do with my hacky implementation:
1) I can't easily put the belt/hook on (or off) myself because I need to velcro up between my shoulder blades
2) The belt can both ride up (pressing on my armpits) and ride down (becoming a loose belt over my waist)
Luckily these are fixable with the right gear.
I wish I could sew the belt (or even just the hook) to my impact vest, but the vest's fabric is flexible, it doesn't have any hardpoints. Whatever I do would probably fail and ruin my vest during a wipeout eventually.
Another unrelated feature I want are quick release handles for wing and board leashes. Right now I'm avoiding foiling in the river current because I lack those safety features. I think if I get a paddling-style PFD this might solve all of my problems. Such PFDs typically have webbing straps that I could sew or tie stuff to. I will look around in local shops.
Also I need to get myself one of those 3D printed hooks, will save a bit of weight.
