Hi, im new to quadcopter flying. I am using apm 2.8 with external GPS (no sonar attached in my quad)and I am just wondering if is it normal that when I switch to altitude hold mode, Position Lock mode, or RTL my quadcopter shoots up.Attached is the…

Hi,Im trying to build a fully autonomous quad which will maintain a certain altitude. I am using an ultrasonic sensor to measure my altitude which will be sent to my arduino. I also have a flight controller(naze32). Im wondering if I can directly…