ORIGINAL: helifan06
Someone knows why a bigger brushless motor say for TREX600 has less KV rating than a smaller motor? BTW, the faulty battery failed at mid air, the heli just drop dead from mid air. Amazingly, the CF blades are OK, only flybar bent, landing skid tube bent, and CF frames broken....
bigger motors generaly run lower rpm or kv rating while smaller motors run at higher rpm to produce the same power band as the bigger. kinda like wheels on a car the smaller wheels would have to turn more rounds to get you the same distance as a bigger set would