I think I have an ESC problem
IRIS has 30 flights or so, when the quad is armed, one motor will not spin up but will run smoothly if the throttle is advanced a little. If I try to lift off, the motor does not have enough thrust to fly, even with the cyclic stick pushed in the opposite corner it will add power, but it seems like it only has half throttle avaiabe on that motor.
I followed the YouTube vid on ESC recalibration, and re- loaded the original parameters shipped with the quad, (I saved them to a file), but nothing has changed.
The motor spins free, it does not seem there is anything mechanical wrong with the motor.
Thinking back, the last flight today it performed a aggressive landing in auto off a 25meter highwaypoint. And it seemed a little unstable in a few areas of the flight. Should only decend at .5 m/sec?? It came down muth faster than normal. Not sure why, the only thing I changed is the waypoint speed from 500 cm/sec to 600 to speed it up a little between waypoints. The next flight, almost tipped it over on takoff because of the motor issue. Front right motor has no power.
Any help would be appreciated.