F 4 GRAVITY MOTOR SECOND TEST (OLD VIDEO)
THIS VIDEO WAS RECORDED 7 YEARS AGO, THIS ENGINE WAS DESTROYED BY THE ROTOR AT 40,000 RPM, NO HARM IN MY PERSON.
WARNING 1: YOU MUST USE COPPER PIPE AND PLASTIC RESIN TO PROTECT THE MAGNETS, AND WARNING SECOND IS “DO NOT USE SIDE MIRRORS” IS BETTER TO USE OF STAINLESS STEEL PLATES …!