Post by robert on Sept 2, 2014 20:47:04 GMT -5
Careless or distracted handling of an RC helicopter or slight maintenance problems can create another danger: self-injury. Each blade spindle and nut must be able to hold 270 pounds of pressure to prevent the blades from flying off. What's more, the speed at the tip of each rotor blade is 250 miles per hour--more than enough to create deep, penetrating cuts in hands, arms or ankles; even tiny pieces that are suddenly ejected from the helicopter can become violent shrapnel at speeds like this.