Himax HA3618 Inrunner Brushless MotorsHA3618 Brushless500 Watts Designed as direct replacement for 500 550 type can motors same diameter & mounting pattern Direct replacement for B50S and Aveox 36 15 type motors,HA3618 This 500 watt motor is for midsize models weighing 48 62 oz for 3 D flight, up to 80 oz for aerobatic flight and up to 100 oz for leisure flight. Gas equivalent . 30 . 40 Part No. Dia mm Length mm Weight g Shaft Dia Prop Size* ESC Rating Kv Rm Io HA3618 2300Learn more 36 44