Himax HC42 Outrunner Brushless MotorsHC42 Outrunner500 700 Watts High torque to turn large props direct drive, Mounting hardware and connectors included, HC42 These motors are made for medium size models weighing up to 4. 5 Lb for 3D flight, up to 6Lb for aerobatic flight and up to 8 Lb for leisurely flight. Manual Gas equivalent 40 . 60 Part No. Dia mm Length mm Weight g Shaft Dia Prop Size* ESC Rating Kv Rm Io HC4220 770Learn more 42 50 200 5mm 12x6 14x8. 5 60 770 . 02 2. 4