Assuming it does 'hop', you won't be in autorotation as the term properly applies to helicopters, as significant rate-of-descent airflow and minimum pitch is required for that.
I imagine this is an attempt to win the Sikorsky prize? I guess it lets you store some energy without using flywheels or other storage devices (I just had a quick look at the rules on the web), which is fair enough, but in all honesty the weight of the setup compared to the power you can put in is going to be too much, I think, (not to mention control issues) to be airborne for more than a second or two, let alone a minute.
Best of luck though.