High Jump over Bar - Magnetic Systems
Comments about this discussion:
Started
The current rule 13D.4 Setup: High Jump over Bar states: "The bar must be held loosely in the jumping apparatus so it can fall or break away if the rider does not complete the desired height. Magnetic systems are not allowed."
I wonder whether this restriction only applies to systems that hold the bar directly magnetically, or whether it also includes systems that do not hold the bar, but the supporting plate of the bar. In my opinion, systems that hold the support plate of the bar magnetically with a certain (likewise prescribed force) should be permitted, as with these systems the bar itself only rests as with completely fixed support systems and can be moved and fall without any problems. However, if someone should really jump onto the bar from above, magnetically held support systems can fold down and thus prevent the bar from breaking - which unfortunately sometimes happens. Broken bars are always annoying and, in my opinion, could be effectively prevented with magnetically held support system.
I would therefore only be in favor of not allowing the bar itself to be held magnetically in any way. What do you think about this?
Comment
I also think the bar itself shouldn’t be held in place with magnets, like you said. I’m okay with the support system being held by magnets, as long as the height can still be set very accurately and the system doesn’t move by accident once it’s set. I’m not sure if magnetic systems can always guarantee this, but I agree they can be used if they are tested well.
Comment
> I’m okay with the support system being held by magnets, as long as the height can still be set very accurately and the system doesn’t move by accident once it’s set.
Definitely - the system I have in mind and which was used very intensively in Germany for several years (until the addition “Magnetic systems are not allowed.” was included in the rulebook) uses a screw to fix the height as normal, so the height can be set just as accurately as with other systems. The magnets are only used in the system to hold the plate on which the bar is placed and allow this support plate to flip down when someone jumps onto the bar from above, so that the bar does not break. In my opinion, this system is completely identical to the other systems in terms of height adjustment, bar stability and so on.
I'll see if I can find a photo of the system.
Comment
Unfortunately, there has been very little feedback here, so I would like to ask more explicitly:
Does anyone see a problem with specifying the rule to the point that the ban on magnet systems only applies to the bar itself?
"The bar itself must be held loosely in the jumping apparatus so it can fall or break away if the rider does not complete the desired height. Magnetic systems on the bar itself are not allowed."