Could the user set the Planing Spéed per session. I wingfoil which planes quite low depending on foil.
Set planing speed
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Hi,
no users can’t change planing speed. The reason is that screens/sessions should be comparable between users.
But, to get proper statistics for Wingfoling, just go to the edit session screen, there change the discipline, in the discipline list scroll to the end, and there you will find Wingfoil.
does that make sense?
Hi
I find very few of my gybes to be classed as planing (it’s quite depressing). I’ve had several sessions where I thought I’d planed out of most of my gybes, only to find them classed as non planing.
I’m not sure if my watch sampling rate isn’t high enough, but it would be nice to adust the minimum planing speed as some boards plane at lower speeds than others.
Please, re-consider the decision “no users can’t change planing speed.”
I’m quite sure that if we ask all the app users, most users would like to change the planing speed.
I don’t care about comparing my data with other users.
I propose to all the user to give a vote on this matter.
Thank you.
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hi @John_Dyson,
is it possible that you could send me an example file to: support@sunbits.de?
What device did you used for recording?
Did you where on foil or fin?
The planing speed is very similar between all boards, it is just that some boards accelerate easier/faster to planing speed than others.
Planing speed just differs on sail boat classes as those have very different dimensions.
Windsurf boards, even they have different dimensions, the planing speed just differs in 0.0… area.
Just send me the file and I will have a look. But planing jibes are hard. It is not to plane out of a jibe, it is to plane while jibing.
Does this make sense?
Yea. I love to compare my gybe success on the choppy waters of my local Lake with those that have the luxury of flat water! 
(we do have flatter water near the edges, but there’s no wind there).
I actually really only want to compare my own sessions, to see what works and what doesn’t.
I’d love to be able to change the planning speed, even if it was just for my own viewing. (BTW - I plane out of most of my gybes at flat water locations).
What is the speed currently set to? It looks like about 14mph - which seems a bit harsh. I have boards ranging from Formula - 70l wave, do they all really plane at the same speed?
I love everything else about the app BTW.
Hi John,
I understand your request, but the idea of the app is to be comparable. If such a feature existed every user would use it, and as such sessions would be no more comparable. Also, the trust in the app will get lost as no one will know how everyone configured the planing speed.
If you look at the speed graph, you will see where the planing speed is for your sport and discipline.
Does it make sense?
Hi,
I love the simplicity, yet feature rich app, and that it does not ask for personal stuff (e.g. weight).
I too would like the ability to adjust planing speed for wind-surfing (and wind-foiling), and the reason is not to artificially inflate planing percentages, which is the 2nd most important metric for me after top speed, planing gybes being the 3rd (and pretty hard to score…), but because not all boards plane at the same speed.
Indeed, many manufacturers tout their board’s “early planing speed” capability, and I can vouch that my BIC Techno WindFoil 130L freeride board does plane earlier then my BIC Techno 160L board, or my former Mistral Malibu 185L board or a 227L Windsurfer LT board.
I believe that board volume and hull shape do make a pretty significant difference, as well as fin length but that is probably too much to ask.
When you look at the wind graphs for any particular board (& fin combo), it is obvious to see at what speed any particular board gets onto the plane and gets liberated from drag. The surge in speed pretty accurately indicates that moment.
For my BIC Techno WindFoil 130L board it is clearly below the app’s 11mph default and below the 8mph waterline; it is probably around 7mph when finning.
IMHO, that 4mph difference will skew metrics pretty significantly.
Feature#1: If we cannot adjust planing speed willy-nilly, which I understand, would it be possible to have different default planing speed for boards of different volumes?
It would allow to have more accurate metrics on a board by board basis.
Feature#2:
Another option would be for the app to detect the pattern automatically by analyzing the GPX track, which would have the benefit of factoring other variables like, hull shape and fin length, on planing speed.
Feature#3:
Since my board is a windfoil board, how do I record a finning session (with its own planing threshold) differently than a foiling session (with its own flying threshold, and foil types really matter here)?
Love the app; could love it even more!
Thanks again,
Guislain
Hi,
thanks a lot for your detailed suggestions and explanations on the topic.
I don’t have access to the boards you mentioned, but I was able to test the new Fun boards and the LT model. Based on my observations, the speed once the boards are planing is roughly the same—but the acceleration differs significantly. Also, if a board starts planing just 1–2 mph earlier, it immediately accelerates beyond that threshold.
For example, most boards start planing at around 10.76 mph. But once they do, they accelerate to at least 13–14 mph. To maintain planing, you need to stay at or above that speed. If you only just reach the threshold, you won’t be able to hold it—you either pump and accelerate, or you slow down and drop off the plane.
So from a statistics point of view, this would only result in a few seconds more or less planing time or distance.
If a different board shape really does allow for significantly earlier planing (which is possible), I’d consider it more of a difference in discipline than in the board’s raw speed. The LT board, for example, has its own discipline—and maybe the BIC should be treated similarly.
In that case, how you use a board can vary, and the discipline would determine whether you get foil time or planing time.
Does that make sense?
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Hi Matthias,
It makes sense, that while a board like the BIC Techno WindFoil 130L may start planing earlier, you need 11mph (or sometimes above) to remain on the plane.
For example, I like to maintain 15mph to ensure that I won’t drop off the plane in a lull, so I can understand the reason for splitting the difference between 8mph and 15mph as a general rule of thumb and choosing 11mph.
Out of curiosity, where did you find the 10.76mph number?
The converse is also true. For example, larger boards once on the plane tend to stay on the plane longer because of inertia. Larger boards accelerate more slowly as you mention, and they also tend to decelerate more slowly.
You mention different disciplines but I only see 2 (wind-surf and kite-surf).
Feature#4: Can we have all disciplines available and per session (vs a default app settings), since some of us have different types of gears and are multi-disciplinary:
- wind-surfing (i.e. finning)
- wind-foiling
- kite-surfing
- kite-foiling
- wing-foiling (i.e. winging)
- wing-SUPping (if that is a discipline)
with different planing/flying thresholds for each discipline.
Thanks for your prompt response,
Guislain
the number I got from a lot of measurements, with high-precision gps.
something you would not carry during windsurfing, but I used for testing.
While testing was done in multiple ways.
It is also visible on the speed graph, it is the point where either accelerate or decelerate.
for boats it is easier to calculate, but for windsurf boards or wing it doesn’t work well with just calculation, as the larger boards are just some cm longer than shorter boards.
Oh on the screen you shared is the sport. the discipline is on the session itself. When you edit the session, you can select it. Just press on the Freeride icon.
Yes it is already there. Currently just the two sports, and the other sports are made as disciplines.
With the upcoming V2 this will already changed.
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Thank you Matthias, about drawing my attention the discipline feature, which I was not aware of.
I changed those sessions from “Freeride” to “Foil” and it said “updated the stats”, albeit I could not see the difference. It still says “Planning speed” vs “Foiling speed”; the threshold is still set at 11mph when flying typically occurs at lower speeds than planing, and the stats have not changed that I can tell.
At your convenience, where can I find the various “Speed thresholds” by discipline?
Thanks; this has been most enlightening,
Guislain
After changing the Duscipline you have to press Save.the flying chanes to about 6.5 knot
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There are 2 foil disciplines,
the normal foil, here the flying starts at very similar speed as planing.
This is measured, as foil need to lift the board. Those boards are usually bigger and as such need speed in order to be able to lift of.
It is the same effect, as if you lift your flat hand from above the water, you will notice a short resistance.
The light wind foil disciplines is for the foils that produce more lift, and could lift the boards earlier but they do not get as fast.
If you have a light wind foil, you should use this discipline.
You can see the planing speed treshold in the speed graph as well as in the polar plot.
does that work?
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