A few days ago I was flying my Air 2S in a area with a rough surface and I tried to do what I always do in these cases: when landing, I stop it at about 1.5m of the ground, I catch it with my hand and pull down the left stick to make a "forced landing" in my hand and switch off the motors.
The first "anomaly" I noticed was that the aircraft seemed unstable, beeped and seemed always to run from me. I finally was able to catch it, but the motors started spinning at full speed (sometimes this happens, but just for a short while) and even after I pulled down the left joystick the motors kept spinning at full speed. At this stage, I decided to switch off by turning it upside down... And, surprisingly, nothing happened, and the motors kept spinning at full speed. After a few more unsuccessful attempts (I was worried for the possibility of motor overload), I decided to make an emergency stop of the motors on the controller while still having it on my hand... And it worked. It was a relief, since I noticed later that this went for about two full minutes and the motors were dangerously hot.
Upon analysis of the flight log, I partially understood what happened. I had for the first time actioned the "bypass mode" of obstacles (instead of "break"). When I first tried to catch it, it detected my body or hand, entered "detour mode", ignored the joysticks and entered in a full autonomous mode. This explains why the "forced landing" did not work.
While this part of the behaviour can be understood, I was surprised that turning the drone upside down would not be enough to switch off the motors. I can not see any reason for the "detour mode" do not respect this emergency switch off strategy. What is the point?
I just would like to know if this happened to someone before or if anyone has any possible justification for this.
The first "anomaly" I noticed was that the aircraft seemed unstable, beeped and seemed always to run from me. I finally was able to catch it, but the motors started spinning at full speed (sometimes this happens, but just for a short while) and even after I pulled down the left joystick the motors kept spinning at full speed. At this stage, I decided to switch off by turning it upside down... And, surprisingly, nothing happened, and the motors kept spinning at full speed. After a few more unsuccessful attempts (I was worried for the possibility of motor overload), I decided to make an emergency stop of the motors on the controller while still having it on my hand... And it worked. It was a relief, since I noticed later that this went for about two full minutes and the motors were dangerously hot.
Upon analysis of the flight log, I partially understood what happened. I had for the first time actioned the "bypass mode" of obstacles (instead of "break"). When I first tried to catch it, it detected my body or hand, entered "detour mode", ignored the joysticks and entered in a full autonomous mode. This explains why the "forced landing" did not work.
While this part of the behaviour can be understood, I was surprised that turning the drone upside down would not be enough to switch off the motors. I can not see any reason for the "detour mode" do not respect this emergency switch off strategy. What is the point?
I just would like to know if this happened to someone before or if anyone has any possible justification for this.