Forums > Wing Foiling General

Which planes faster; 157x62cm or 148x70cm with same litres (85L) and bevels and tails?

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Created by omg > 9 months ago, 5 Mar 2021
omg
292 posts
5 Mar 2021 5:10PM
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I have a 148x70 85L board with which I started to winging (I'm 82kg). I know my pumping technique isn't just 10/10, but I am just wondering if the longer board (although narrower) would plane earlier? I feel the board being very wide to the length creates drag, and board pumping is kind of hard to not nose dive the board or the board gets stuck in the water when pumping? Am I just poor pumper or is there something behind my thinking, ie the longer and less wide board would release/pump better?

Thanks for your thoughts!

hilly
WA, 7877 posts
5 Mar 2021 6:52PM
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I find wider boards easier to pop off the water. Longer the board the more it feels sticky. No science just feel. Demo??

warwickl
NSW, 2354 posts
6 Mar 2021 7:43AM
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157 in theory as it has a faster non planing speed based on hull length so will get to planing speed quicker.
But for Windwing this is not necessarily what is required.
I have down sized from 6ft 4in to 5ft 4in and now get up on the foil way quicker.

LeeD
3939 posts
6 Mar 2021 5:01AM
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Leg pumping, the up and down motion, negates the wider board drag. That, and pure surface area, should help the wider board as you micro-reposition your feet to lessen surface area as your boat speed increases.

Grantmac
2318 posts
6 Mar 2021 7:34AM
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Weight will matter. A longer board can be much harder to pump if it's front heavy and hull speed has very little to do with winging.

tightlines
WA, 3501 posts
6 Mar 2021 9:29AM
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I think a lot depends on the riders experience and the bottom shape of the board.

A longer board may plane faster however it will need too because it is heavier 'stickier' and harder to pump up onto the foil.
A beginner may get foiling sooner on a longer board through building up speed but an experienced winger/foiler/pumper will pump the shorter board up sooner IMO.

e.g. I have 2 ONE foil SUP's both around the same volume a 6'8" x 28 108.8ltr and a 5'10" x 27.5 107ltr (the red one in my pic).
When I first started winging I pretty much exclusively used the 6'8 as I thought because it paddled better/faster it would get up sooner (plus it was easier to balance on) but now I only ever use the 5'10" as it definitely does pop up easier now that my technique is better.

Even though that board works well for winging I am hoping to get a smaller wing board soon probably 5'

Jeroensurf
1075 posts
6 Mar 2021 3:15PM
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I started in Oct in the European autumn with 97kg+ a wintersuit, boots, hood and gloves so let say 100kg for sure, on a Fanatic 5.8x28x110. In the beginning a bit of work so with the intention to fall less in the winter (air between 10C on a warm day and subzero when cold with water around 3-6C ) I bought an JP Supfoil7ft but the shorter Fanatic5.8 is at least as stable and way easier to get going as the JP7ft so sold the JP pretty quickly.
I also tried an 5.0 ftx110l and that felt a LOT harder to get going, so I guess that some length will help to get planing and when you go below a certain length I doubt there is any glide.

My guess is there is a bit of bodyweight/ boardlength optimum curve and for me it feels that for my 97/100kg that will sit between the 5.6-6ft. Not sure how to downscale.

omg
292 posts
6 Mar 2021 3:18PM
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Thanks guys, I just think if there's a point of negative returns after some short point as mine is 4'10 ie. much shorter than 6 or 7' boards campared here and would be much more sensitive for diving etc. when pumping. And I'm only talking about lightwind capabilities. But yeah, I guess just more technique is needed...

Jeroensurf
1075 posts
6 Mar 2021 3:23PM
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I was still editting my post but My guess is there is a bit of bodyweight/ boardlength optimum curve as with any surfboard and for me it feels that for my 97/100kg that will sit between the 5.6-6ft. Not sure how to downscale that to your 82kg.

DWF
707 posts
7 Mar 2021 1:06AM
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Because you want better planing, you need to look at tail design.

When everyone rode super LIFTY foils, we could "pump" onto foil before the board ever reached planing speed. So anything that was short won the race to get on foil because short pumps and unsticks easier.

But that all takes skill.

Lacking this skill, a newbie wants a board that planes first, then comes onto foil.

But now, experts riding ultra fast thin foils, also want a board that planes first, then comes onto foil.

Indiana Paddle board offers a planing first board design.

Frankieboy
117 posts
7 Mar 2021 5:43AM
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Select to expand quote
DWF said..
Because you want better planing, you need to look at tail design.

When everyone rode super LIFTY foils, we could "pump" onto foil before the board ever reached planing speed. So anything that was short won the race to get on foil because short pumps and unsticks easier.

But that all takes skill.

Lacking this skill, a newbie wants a board that planes first, then comes onto foil.

But now, experts riding ultra fast thin foils, also want a board that planes first, then comes onto foil.

Indiana Paddle board offers a planing first board design.



100% agree on this.
Board (bottom) shape needs to match the foil you are riding. I pumped my 1100 moses with no speed and can't do it with the HPS. My board doesn't glide with very deep concave and tail bevel even if it is wide and good volume.

DrSeanR
QLD, 14 posts
18 Apr 2021 6:09AM
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Not sure if you've tried footstraps, but having the front foot straps makes pumping way more effective, in my experience ;) I ride 5'0 Sunova 76ltrs... Axis high performance surf 860 wing (1200 surface area) I weigh 87kg...



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"Which planes faster; 157x62cm or 148x70cm with same litres (85L) and bevels and tails?" started by omg