Brushless upgrade
I finally decided to fit a 3900KV brushless motor to my King II today. Since fitting it I have found that the heli is much more stable during hovering and the battery lasts longer now . The motor is no longer hot after the flight and I have also noticed that the noise of the motor is significantly less then the Brushed motor. Another benefit is that the heatsink-less motor has given a 3 gram reduction in weight. yipee.
After struggling to fit the Pinion gear to the shaft, I found that the easiest way was to heat the gear with a butane torch and to spray freezer-spary on to the shaft of the motor; so much easier then brute force!
I notice some people fitted the speed control at the back, near the receiver due to the wire not being long enough for placement at the front. I decided that I did not want to do this and so I had to extend the wire from the controller to the receiver. The wires to the motor were routed around the underside of the frame as can be seen from the pictures. This then allowed for the fixing of the speed controller to the front where the old controller sat.
