My Tarot crashed during a video mission when the lipo pack slipped out of its velcro harness and separated from the aircraft at 30M altitude. The fall destroyed the battery pack and heavily damaged the aircraft, destroying the camera gimbal, two motor mounts and damaged two arms.
After ordering replacement parts and rebuilding the aircraft, I ran the Motor Test via Mission Planner, and found that the #2 motor required twice as much power (.14%) as the others and instead of spinning it had a jerky king of motion.. Thinking that the motor had been damaged, I ordered a replacement along with a new ESC. Once they arrived I put the aircraft back together again and ran the Motor Test again. The new motor still requires .14% power in order to spin but when it does, it spins smoothly but at a lower rpm as the others. I connected the ESC directly to the receiver and ran the motor and it spun just fine.
Based on the above, I feel confident that power distribution, physical connections, the ESC and motor are all fine and the suspect lies somewhere withing the controller. I am not aware of any parameters that affect the motors individually. Lacking any other information, I’m tempted to rest the controller back to its defaults and once again go through all the calibrations and parameter tweaks. But before I do, I thought I’d ask the community for any thoughts/ideas.
). I did arm/run the motors with props removed and all four seem to be running find except that I have to way to compare individual motor rpms.