I no longer need the gy401 for my tail gyro as i am switching my fleet to 3 axis flybarless controllers.
Originally had this in my logo 10 3D. In this heli I never had a crash. Only one hard landing when the phoenix esc started to smoke and cut out.
I also had it installed on a 450. In this bird I only had one minor crash because of a servo going bad. It was hovering about 2 feet off the ground when i lost control of the cyclic. it hit the ground under throttle hold. I only broke the fiberglass blades main shaft and feathering spindle. The gyro was untouched and has worked for at least 20 flights past the accident perfectly.