[Help ASAP Please!] Clearing parenting in middle of an animation?

I have an animation which involves missiles being shot from an airplane. However, I parented the missiles to the airplane, so when I try to shoot them, the flight path gets all messed up. Is there anyway I can clear the parenting at a certain frame? Or is there another way of doing this?

Thanks!

What I have done is add an empty that will follow the missiles path. Then add a “copy location” and copy rotation" constraint to the bone of the missile pointed to the empty. Now, animate the influence from 0 to 100% at the frame where the missile launches

I have no idea what you mean. I can’t find influence anywhere either, I think I could just animate that and not worry about the rest? How do I open the amount of influence?