“I have been in RC for 35 years and have never seen or heard of a RC air craft killing anyone or interference with full scale aircraft. I watch pelicans, geese all flying with in 1/4 to 1/2 mile of the flight paths of are SLC airport those birds create 10 times the hazard of RC planes and they have taken down planes. I have never seen or heard of a RC plane taking down a full scale.”