[EricH]

Originally Posted by marc

Is a robot allowed to simply use gravity to deploy its ramps? We are considering a mechanism that releases our ramps and allows them to fall like wings on either side of our robot. Or would this pose a safety hazard, and require it to be done in a controlled fashion (e.g. pulley and rope system)?

Change in altitude of CG (gravity usage) is a legal source of power. If they come down too fast, put a brake on. If you think it's a hazard, the inspectors might also.