Brushless motor controller KV value defined as RPM/V, means the input voltage increase 1 KV, brushless motor controller speed value of the idle speed increase. Let's look at high voltage of the brushless motor controller. KV value high speed is too high in this environment, in order to avoid too much electricity, try to reduce the load. With its high speed, with the word of Yu Han fan engine is appropriate. KV value low, under the environment of the voltage can achieve high speed, torque is good also, ideal. Need to cooperate with large reduction ratio and the smaller the propeller, under the condition of meet the power output, to reduce the load, and avoid excessive current; 7. 4 v and 11. V is for example, is a common small level. Brushless voltage range is very wide, amazing performance.
