I am trying to launch a rocket 200 feet away from the rocket. When the switch is thrown to "ON" the electrical circuit is turned on which sends an electrical current into the motors. I can launch the rocket just fine if I am standing right there to flip the switch, but as i increase the distance of the switch from the rocket, then I need more batteries to the circuit. I have attempted to use this with about 4 nine volt batteries to no success. This is a parallel circuit. How can I launch this rocket from this distance?? I basically have to figure out a way to flip a switch to "on" from 200 feet away. Keep in mind that I do not want to pull on a string which will flip the switch! Thanks!!