Unread postby master » Wed Mar 02, 2005 2:53 pm
I think what you have done is great. As I watched, I could see the problem of the top (above the handgrip) portion of the "pole" snapping back quickly and possibly hitting the vaulter.
The engineer in me can't help but suggest something for you to try to eliminate this concern. Stiffen (to the point of not bending) as much of the pole as possible above the handgrip of the underwater vaulter. This could be done by inserting a metal pipe into the pole or maybe more easily, sliding a larger diameter (and stiffer) section of plastic pipe down over the outside. In either case, the stiffner piece would need to be secured to the pole in order to keep it in place. The entire pole will return to the straight condition, however the stiffened section should only get back to aligning with the below-the-handgrip section at the rate the bent section straightens out.
By keeping the above the handgrip section straight, you will have the same condition you have with an actual vault. This will change the action required to create the original bend, but that can likely be adjusted for fairly easily. If it works, I would love to see the videos of it. If I had access to a pool, I would love to try what you already have as well as this new idea.