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Originally Posted by dlavery
The rule applies to ANY mechanism that engages the chin-up bar. It doesn't matter if it is an arm, projective, spear, grappling hook, or string of spaghetti.
-dave
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Now what if this bar grabbing device is an elevator, constrained at the bottom and top (with guides so it can only move upward XX feet). Does the 10fps rule apply here too?
Another example would be a pneumatic device (using a piston) that extended upward toward the bar, a smaller piston (3/4" bore) definitely can move faster than 10fps, is this devices speed restricted as well?
The way I read it, I have a hard time applying the rule to objects other than projectiles. Using the spirit of the rules, I could imagine why an arm moving faster than 10fps could be dangerous, however, I do not see it being as lethal as something that is released into the air (such as a grappling hook) and could potentially hit spectators/drivers/people. Although there are some exceptions, most 'contstrained' devices pose a lesser risk than some sort of projectile.
Point me in the right direction, this might be problematic to some teams at competition (including ours).