@trondhindenes wrote:
Hi all, this is a problem I have seen with both of my pixhawk-equipped drones: During loiter if I do some maneuvring (semi-aggressive yaw while forward flight or something) my quad will lose atitude to the point that I have to give aggressive throttle up in order to save it from touching the ground. It doesn't seem like altitude control is as locked-in as I'd like. From what I can understand the idea is that the unit should attempt to keep current altitude as long as the throttle stick is centered or within the deadband range around center when in loiter. I find that when testing this by flying 3-4 meters above ground it will loose too much altitude and get dangerously close to ground. I have more than enough power in my unit (hovers at about 40% stick), I just get the impression that arducopter prioritizes control input in the horizontal plane more than in the vertical plane. IMHO it should be the opposite, avoiding hitting ground should be more important than reacting to horizontal movements. In any case my unit has more than enough power for both. Is there anything I can tune to make my unit keep its altitude more precisely? What alt range should I expect from my unit? Comparing with my old phantom 2 that unit is able to hold altitude extremely well... Any pointers appreciated!
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