Don't let everyone here discourage you. People love to jump in and say "no" without listening. This IS a cool IDEA. DO NOT attempt any of this without a proven professional with credentials. You need to check with the school administrator or whomever is responsible for insurance. Also, make sure this is all cleared with your supervisors. And make sure everyone is safe. Just because you have the proper equipment doesn't mean the operators know what they are doing or that the equipment will not fail.
"And make sure everyone is safe." Well, the problem with that is: a lot of people are sure they're being safe despite a complete absence of knowledge or training. Like the saying goes "the
road to h3ll is paved with good intentions". I don't think anyone here is trying to discourage anything or anyone, we're just trying to make sure things are done properly to avoid injury/death. No show/
effect/
gag,
etc...is worth ANYone's
safety.
To
rappel in this sort of environment would go one of these ways, from my
point of view:
You get trained and certified in industrial climbing practices and the
rappel is performed by those individuals (assuming you have anchor points that will meet minimum requirements, which in most instances is 5000lbs for a human being to be on).
The trained and certified individuals would actually lower the non-trained individual. A sort of illusion of a
rappel.
You hire a flying company to come in and rig the illusion of a
rappel.
You hire a stunt coordinator, and actual stunt performers to do it for you.
Personally, I'd go with one or both of the first two. I know I've said it before, but: it's called Rope Access and it'll get you to a LOT of places very, very safely.
God, I hope I didn't get all preachy there.