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WOO max Landing G-force. What is it mean?

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Adek
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WOO max Landing G-force. What is it mean?

Postby Adek » Sun Oct 18, 2020 3:47 pm

I hope you are fluent in physic and realize that max G-Force landing of 18.0 G in WOO chart is absolutely .... unbelievable to the human body. Or please explain what force or what else this "G-Force" in WOO measurements meaning. It can't be so much really, because if the G-Force is x18 more than your weight your leg's bones can't resist this impact overdose. Someone know WTF?

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Re: WOO max Landing G-force. What is it mean?

Postby Herman » Sun Oct 18, 2020 4:48 pm

I don't use woo but where you mount the accelerometer will make a difference. If it is on the board and you land flat it will show a much higher de acceleration reading than if head mounted providing you are absorbing the shock by using your legs as suspension. Therefore the results would require interpretation. Fighter pilots might expect to see 9g and maybe more.

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Re: WOO max Landing G-force. What is it mean?

Postby knyfe » Sun Oct 18, 2020 4:52 pm

Not sure what the WOO does but it also really demands on the sample frequency you are looking for. Let’s assume you flap your board in the water just by hand standing right there. It well might be that there is a single spike running through the board with 18Gs but quite insignificant otherwise. That does not mean that your body is stopped with 18G. It’s a toy and not a scientific instrument - keep that in mind.

If you do shipping tests for expensive equipment you always look for the frequency component as well.

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Re: WOO max Landing G-force. What is it mean?

Postby Adek » Sun Oct 18, 2020 5:03 pm

I can't find appropriate description of this "G-Force" in WOO manual. Is it deceleration of 18 times more of normal 9.8 m/sec/sec or something else? 18x9.8=176.4 m/sec/sec. That's unbelievable! So WOO must define and explain the terms of this "WOO G-Force".

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Re: WOO max Landing G-force. What is it mean?

Postby WOO Kite » Sun Oct 18, 2020 5:49 pm

knyfe wrote:
Sun Oct 18, 2020 4:52 pm
Not sure what the WOO does but it also really demands on the sample frequency you are looking for. Let’s assume you flap your board in the water just by hand standing right there. It well might be that there is a single spike running through the board with 18Gs but quite insignificant otherwise. That does not mean that your body is stopped with 18G. It’s a toy and not a scientific instrument - keep that in mind.

If you do shipping tests for expensive equipment you always look for the frequency component as well.
That is spot-on Knyfe. The "shock" G force is over a very short time and cannot be compared to G forces over longer periods, such as car acceleration etc.

Wikipedia has a short explanation on this:
Gforce.png

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Re: WOO max Landing G-force. What is it mean?

Postby dracop » Sun Oct 18, 2020 8:10 pm

This is a great topic. Since Ive been using a PIQ, the LooperGate issue means I only see true landing gforce on jumps without a kiteloop. Ive come to actually utilize the feature to measure the power of my kiteloops lol.

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Re: WOO max Landing G-force. What is it mean?

Postby a99 » Sun Oct 18, 2020 8:31 pm

Woo is just toy. Such sensor must be Sticked somewhere in harness, because board g force is very different from what feeling human body after impact and legs amortization. Only sticking in harness can provide more accurate numbers. Even as some placing legs 2 megers higher in jump over head:) so only sensor stickingvto nar can reflect real results in all cases.

Those who have TWO identical Woo or PiQ sensors please do try one place on board and one stick to harness, will be interesting to compare results of jumps and g-forces and even hand time.

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Re: WOO max Landing G-force. What is it mean?

Postby Adek » Sun Oct 18, 2020 9:17 pm

What I learned from this topic is that WOO living in "WOO Universe" where metric meters and Earth math replaced with their own system of measurements, forces, timing etc. approximately relay to reality. Just a "WOO world"

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Re: WOO max Landing G-force. What is it mean?

Postby Exal » Sun Oct 18, 2020 9:42 pm

Can only tell you from my own experience that 7+ g force rating is where the pain enters the game 🤣 10+ is what my buddy has from kiteloop crashes, he also holds the record in our group with close to 14. Pretty sure I would've lost a leg.

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Re: WOO max Landing G-force. What is it mean?

Postby Matt_TYRCZ » Sun Oct 18, 2020 10:01 pm

More G`s = more pain :)


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