Hi all, I’m looking for some help with my drone yawing/rolling weirdly during high speed. I am running Arducopter 4.6 and know this drone is capable of 250kmph+ but I am having trouble getting to higher speeds recently. The drone is running well other than this issue, being able to hit waypoints easily. I have started speeding the missions up to see the amp draw at different speeds to figure out my efficiency graph.
I noticed from the start that the drone was yawing to the right during higher speeds and started messing with settings to try resolve this. After looking at the logs I realized that the motors are reaching lower saturation during forward flight so increased mot_spin_min. This helped at higher speeds but now that I am going even higher speed I am getting the yaw issue again. I’ve looked at the logs and I don’t believe its the saturation anymore.
I have messed with the tune too, but I’m a bit of a noob when it comes to tuning, so please let me know if you can see anything wrong with it.
This is the general shape of the drone I am using: 📁 400kmh (250 mph) speed drone PREMIUM Version (editable STEP File)・ STEP File for 3D printing・Cults
I am attaching the log file for your reference (This was during a speed run in stab mode, so you can see in the first sprint the yaw issue causes a complete freak out of the drone):