Strange problem occurs when i switch off my Futaba 10 CHG while the Lipo is attached to Hexacopter. The throttle channel receives 100% and all the motors move to their fullest (very threatening). So the process i am following is disarm the motor first, then plug out the Lipo and then switch off the transmitter. How can i fix this? As this may cause severe damage any bad day!
Not good at all because it also means if you fly out of range, the same thing will happen and your Hexa will shoot off at full throttle, probably never to be seen again!
You need to check the failsafe settings on the receiver.