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Re: Physics debate
Posted: Tue Jan 17, 2023 12:45 pm
by GrimSurfer
lowangle al wrote: ↑Tue Jan 17, 2023 12:40 pm
With the lead ski you can get more weight on the front of ski by putting more weight on your toe than your heel. Even without a cable you are getting some forward weighting (tip pressure) on your ski because you are weighting the ski forward of boot center.
So believe it or not you are getting some tip pressure on every turn with a properly weighted rear ski.
So how do you explain the photos recently posted that shows very little pressure (if any) on the front quarter of the ski?
And how do you explain comments like this?
Johnny wrote: ↑Mon Jan 16, 2023 1:04 pm
But hey, who cares about cables and flexors? The truth is, I have 5 pairs of XP skis and I have completely removed the flexors on all of them. Never felt so free on skis before! (The anti-ice plates do help a bit to prevent snow buildup...)
Grace, technique and finesse, not cables, springs and flexors!
Re: Physics debate
Posted: Tue Jan 17, 2023 12:51 pm
by lowangle al
What I just said supports what Johnny just said and visa versa.
As far as the photo. I wouldn't expect snow to be flying off the tip of the ski. Just maybe an inch or two more forward than it would be without loading the tip.
Re: Physics debate
Posted: Tue Jan 17, 2023 1:15 pm
by GrimSurfer
lowangle al wrote: ↑Tue Jan 17, 2023 12:51 pm
As far as the photo. I wouldn't expect snow to be flying off the tip of the ski. Just maybe an inch or two more forward than it would be without loading the tip.
I’ll buy that. It’s a reasonable proposition.
Re: Physics debate
Posted: Tue Jan 17, 2023 1:27 pm
by Stephen
GrimSurfer wrote: ↑Tue Jan 17, 2023 12:45 pm
lowangle al wrote: ↑Tue Jan 17, 2023 12:40 pm
With the lead ski you can get more weight on the front of ski by putting more weight on your toe than your heel. Even without a cable you are getting some forward weighting (tip pressure) on your ski because you are weighting the ski forward of boot center.
So believe it or not you are getting some tip pressure on every turn with a properly weighted rear ski.
So how do you explain the photos recently posted that shows very little pressure (if any) on the front quarter of the ski?
@GrimSurfer seems to be commenting on the lead, front ski.
@lowangle al is talking about the rear ski.
If you look at the photo, yes, the front ski looks to be weighted or engaged the most under his foot.
But, if you look at the rear ski, it sure looks like that ski has contact with the snow all the way up to the tip of the ski.
(Again, let’s not get hung up on semantics. I could say shovel of the ski, front quarter of the ski, front of the ski, …).
Any binding that resists raising the heel of the boot, whether by a flexor, or a cable, etc. is going to cause additional pressure on the front part of the ski. I hope this is obvious. The concept is that of a fulcrum.
This action only occurs on the rear ski, because the heel of the boot on that ski is raised, unlike the lead ski.
.
Re: Physics debate
Posted: Tue Jan 17, 2023 1:33 pm
by GrimSurfer
Stephen wrote: ↑Tue Jan 17, 2023 1:27 pm
@GrimSurfer seems to be commenting on the lead, front ski.
@lowangle al is talking about the rear ski.
If you look at the photo, yes, the front ski looks to be weighted or engaged the most under his foot.
But, if you look at the rear ski, it sure looks like that ski has contact with the snow all the way up to the tip of the ski.
(Again, let’s not get hung up on semantics. I could say shovel of the ski, front quarter of the ski, front of the ski, …).
Any binding that resists raising the heel of the boot, whether by a flexor, or a cable, etc. is going to cause additional pressure on the front part of the ski. I hope this is obvious. The concept is that of a fulcrum.
This action only occurs on the rear ski, because the heel of the boot on that ski is raised, unlike the lead ski.
.
F7E4EDA6-192F-43A2-B96A-953E11A96194.jpeg
Read his post.
I’ve added bold font so you won’t miss it.
lowangle al wrote: ↑Tue Jan 17, 2023 12:40 pm
With the lead ski you can get more weight on the
front of sk by putting more weight on your toe than your heel. Even without a cable you are getting some
forward weighting (tip pressure)on your ski because you are weighting the ski
forward of boot center.
Re: Physics debate
Posted: Tue Jan 17, 2023 1:53 pm
by Stephen
GrimSurfer wrote: ↑Tue Jan 17, 2023 1:33 pm
I’ve added bold font so you won’t miss it.
lowangle al wrote: ↑Tue Jan 17, 2023 12:40 pm
With the
lead ski you can get more weight on the
front of sk by putting more weight on your toe than your heel. Even without a cable you are getting some
forward weighting (tip pressure)on your ski because you are weighting the ski
forward of boot center.
He was talking about both the lead ski and rear ski in his post.
I think you mixed the two of them up?
You seem to ignore the part of my post referencing the
rear ski and the effect the cable binding is having on pressuring the front of the ski?
Re: Physics debate
Posted: Tue Jan 17, 2023 2:25 pm
by lowangle al
Whatever there is to be said about telerocks skiing does not take away from the fact that he looks pretty cool in that vest.
You don't need perfect form if you are pretty well centered, which I think he is.
Re: Physics debate
Posted: Tue Jan 17, 2023 2:40 pm
by mca80
lowangle al wrote: ↑Tue Jan 17, 2023 2:25 pm
Whatever there is to be said about telerocks skiing does not take away from the fact that he looks pretty cool in that vest.
You don't need perfect form if you are pretty well centered, which I think he is.
Plus shorts and moustache. What happened to style? Maybe that's why telemark popularity ain't what it used to be--no emphasis on style in today's yutes.
Re: Physics debate
Posted: Tue Jan 17, 2023 4:29 pm
by lowangle al
Chicks were really into hairy chests and facial hair back then. Now all you need is a shiny new pair of T4s and they're all over ya.
Re: Physics debate
Posted: Tue Jan 17, 2023 4:34 pm
by mca80
lowangle al wrote: ↑Tue Jan 17, 2023 4:29 pm
Chicks were really into hairy chests and facial hair back then. Now all you need is a shiny new pair of T4s and they're all over ya.
Guess I am out of the loop. I only want to ski--stylishly--in leathers and suspenders and twisty moustache.