Originally Posted by
2walla
Ok Oli. If i understand correctly, the contoller is using the receiver power via the GEAR channel input to provide power the steering servo. So you are only using the ground wire and signal on the brake and rudder inputs.
Will it hurt the retract system if the positive lead on the brake and rudder channels is NOT disconnected?
You are right.
If power is coming from the brake and rudder channel, it might be a problem if these servo do not use the same regulator. This could get reverse current and damage the diode isolation.
However I have one of my Scorpions using a battery backer ( only one regulator supplying the receiver at a time ) and I have been flying it for 1 year with the brake lead on 3 wires without any problem.