PoleVaultPower.com

Here is a method of measurement we use

1. Take an accurate scale.
2. Place an aluminum angle or round pipe in the center of the scale. (you may need to affix this)
3. Take your pole and measure from the weight-rating ring down 2 feet.
4. Place the pole on the angle at that measurement.
5. Connect a hook or string to the table and position that at the bottom of the weight-rating ring on the pole.
6. Pull the pole to the table and connect to the above hook or string. POLE SHOULD NOT TOUCH TABLE OUR SCALE IS 3" OFF THE TABLE TOP


The carry weight of the pole will be displayed on the scale, convert any lbs. to metric (kilos) by taking the number you get and dividing by 2.2. (2.2 lbs to each kilo.) (Example 25 lbs divided by 2.2=11.3
This number is the carry weight # ( CW#) On World-class poles 16’ on up anything under 11.5 kilos or 25 lbs is a keeper

Note: 16’ poles and up the measurement is hook at 16’ scale position 14’.
DISCLAIMER
This is one persons opinion and method. Other methods may be used by other companies. (They might not wish to share it?)
Carry weight # (CW#) may not be a good comparable from one length to another length.
Unless you measure both poles with the same specs, then you will have a closer comparable.


What are your results?

BRAND _________
MODEL ________ LENGTH_______ WEIGHT ________
Flex_________
CARRY WEIGHT __________

Have fun

Side note:
[color=green][b]In some cases the lightest carry weight may not be the best as the pole can bend low and not provide the most return of energy. Yes, it is lighter to carry down the runway. The lighter the pole is in the carry weight the more potential the pole has to bend low if you are using poor vaulting technique and driving flat at the plant.
The lighter the carry weight the better the results if proper technique is used to vault with and the vaulter “times with the poleâ€Â

ugh, my head hurts...

OUvaulterUSAF wrote:ugh, my head hurts...

Wait till the pole experts and engineers get a hold of this LOL
Some engineers and pole experts on here will read this and you will have so many more varibles thrown in!!!
We will all have our heads spinning on the trivial and more accurate stuff (SMILE)
Many other varibles can play a part of this but for th esake of a simple measure this is whatwe choose.
This was just an easy way and we tried to keep it simple LOL
Or was it the rainbow colors that dazed you :dazed:

Gee - that was one of the key items on Carbon - carry weight - from the Engineer we won't get into how the carry weight changes as you lower the pole to horizontal or that changing the spacing of your hands has a huge effect on this - but low bend and carry weight - yes there is an indirect tie in because the more glass you have further from you grip the higher the carry weight - but would that result in a low bend or a high bend! all things else being the same felt colorful today as well

Random thoughts...

Hmmmm... seems to me that if the pole had a low carry weight, that more glass would be near the grip of the pole, less at the bottom, causing the pole to bend low since there's less glass at the bottom. Indirectly, a heavy carry-weight would seem like there's more glass near the tip of the pole, resulting in a higher bend because there's less glass near the grip. The wider the handspread, the more leverage, the lighter it feels. The narrower the handspread, less leverage, feels heavier.

So it seems like a tradeoff: heavier carry weight equals higher bend, equals better results, but pole feels like a log. lighter carry weight equals lower bend, equals less desirable results, but pole feels like a feather So the trick for engineers is to make the lightest carry weight pole with the highest bend possible?!?

Then in terms of handspread, wider equals lighter feel, but tougher to swing and fully invert, narrower equals heavier feel, but easier to swing and fully invert. So the trick for vaulters is to get the right handspread to feel comfortable carrying a heavier pole while at the same time being able to fully invert.

Is that why the Jonesboro guys all have massive handspreads on the pole? Heavier carry weight at the bottom of those high bending poles requires a wider handspread for balance during the approach? And is that why they are more tuck-and-shoot style vaulters than swing style vaulters, because of the wider handspread?

Thoughts? Opinions?

So it seems like a tradeoff: heavier carry weight equals higher bend, equals better results, but pole feels like a log. lighter carry weight equals lower bend, equals less desirable results, but pole feels like a feather So the trick for engineers is to make the lightest carry weight pole with the highest bend possible?!?

Ok lonestar where did you get that info??????

You got it. or a stiffer bottom with less glass maybe might do it too????

grin

ESSX wrote:

So it seems like a tradeoff: heavier carry weight equals higher bend, equals better results, but pole feels like a log. lighter carry weight equals lower bend, equals less desirable results, but pole feels like a feather So the trick for engineers is to make the lightest carry weight pole with the highest bend possible?!?

Ok lonestar where you get that info??????

You got it. or a stiffer bottom with less glass maybe might do it too????

grin

Just taking some shots in the dark - have no idea if I'm in the ballpark or out on Pluto.

Modest - if you understand the basic of poles and vaulting - which you clearly do - most of the rest is just common sense and reasoning - unless we get anal engineer to surface - this is the anal engineer e-mail version from June of 2002 - "Hi Henry

Enjoyed talking with you. You guys are doing some interesting work. Question - The graph that is in the catalog I assume is based on a certain pole length (length and true pole weight) and also is based on a certain handhold placement.
Brand A & B weigh more and this is magnified at the lower carry angles. Have you done anything with hand place versus Dynamic Carry Weight - some crude cals I did indicate at 10% pole weight drop could be equated to a hand placement adjustment of less than two inches. What strikes me as important is how this impacts the running/sprinting posture. Creates a myriad of things to think about and a lot variables. Is your dynamic carry weight a combination of the load or forces of the top and bottom arm? How many degrees of freedom did the bottom arm have. Constrained in Z displacement - Free Rotation about Z?
Hopefully some day we can sit around and BS about some of these aspects."

Jeffrey P. Watry, P.E.
Engineering Manager
Parkson Corporation
847-235-1042
Now I get to do this all the time - you should see the spread sheets on carry wgt of various poles that were compared

[

Wait till the pole experts and engineers get a hold of this LOL
Some engineers and pole experts on here will read this and you will have so many more varibles thrown in!!!
We will all have our heads spinning on the trivial and more accurate stuff (SMILE)

I rest my case about the trite and trivial details that daze the mind

JUST VAULT

UMMM.........High bend or low bend............well either is not the most effective wat to bend a pole. FULL is where it is at, lower (equal) demands on any one area of the pole, less likely to break AND smoother in all aspects. If you demand great amounts from one area of the overall length of the pole and little to none from other areas of the pole you are not fully utilizing the poles potential. SO if a manuf. is designing a pole that lends itself to bend higher or lower there must be a reason. The Skypole has a lower sail thus some say it is a pole that bends low.........NO it is a pole for athletes that load a pole low irregaurdless of the design (beginners - intermediate vaulters). The more advanced need a pole they can grip as high as possible on and still roll it over. That, in a perfect world, is a pole that bends FULL because the distance from the tip to the top hand is as short as it gets without demanding a large area of bend be isolated into only the top or bottom of the pole which is usually forced there by the poles design (low sail = high bend). It forces the majority of stress into the weakest areas of the pole. So how do you not break that pole.........grip lower and use a stiffer pole.........well that goes against what you are trying to accomplish, grip as high as possible on as big a pole as possible.


Bryan Carrel
Degree = P.E. (go figure)

I would tend to think that the highest bend possible would give the greatest throw, since it shortens the lever the the part of the pole thats unbending must use to throw the vaulter, but then only if the return is close to instant. (physics is rusty) a lower bend can possibly produce a greater velocity over time, but how much energy is lost there in. Then a full bend should be the ballence of the two. I however like an instant return, so I would like the higher bend. Now also the lower bend would have to move the vaulter vertically through a farther median then the higher bend. The highest bend already places the vaulter high in the because the majority of the pole is straight and underneith he/she. Then again the perfect pole would be one that didn't bend, so that all energy would be returned, but that hurts really bad when you try to hold to high. So then vaulting is an impertect sport. Apples Oranges, If your a chevy fan do you like a 383 stroker, or a 327 bored .060 over. Lower more impresive, higher more efficient, full more ballenced. I got the 327 in my camaro, but the frames all busted up....

what works for you is always important - but PVJunkie is correct - potential engergy storage is greater in a pole that has usable bend trhoughout a greater length/distance - it also has a big impact on carry weight - what good would a pole be if you could load it up but never get it to vertical or past - you end up on the runway alot - not the desired end result - - got a meet later today - hopefully - std at 80 - and a PR would be nice -