This is rule 10 of the AMA Safety Code for Radio Controlled Aircraft operation .
10. The operator of a radio-controlled model aircraft shall control it during the entire flight, maintaining visual contact without enhancement other
than by corrective lenses that are prescribed for the pilot. No model aircraft shall be equipped with devices which allow it to be flown to a selected
location which is beyond the visual range of the pilot.
By doing what you intend to do you will be violating not only that rule but others which state you can not overfly unprotected spectators . You will be putting our entire sport at risk of legislation by the Federal Government and I for one happen to enjoy my sport unhampered by the Government .