Sean-bumble-bee
Core User of DJI
Flight distance : 15997 ft
United Kingdom
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The drone will not adjust its height to follow the terrian UNLESS the ground comes within 50cm.
50cm seems to be a threshold height, try to hover below that height and the drone will more often than not attempt to land or land full stop. If the drone is moving horizontally and slowly enough and the ground is rising in the the direction of flight then the drone will climb to maintain the 50cm clearance, if the horizontal speed if too great the drone may fly into the rising ground.
I have flown my Mavic Mini and a Mavic 2 Pro up the drive at the side of my house, the Mini does it better than the Mavic 2. Fly in the down slope direction and the drone ignores the descending ground and flies horizontally.
To clarify Hawkey's post, the negative height would come about if, after leaving the clliff top and fiying out into 'space', the drone descended below the take off point. My lowest real flight has been from a sea cliff top down to, from memory, in excess of -300ft.
I have seen a substantial 'false' negative height in logs that were started after a disconnection where the disconnection occurred whilst the drone was at height.
Of course an Air 2s with OA switched on may add other behaviours to the melting pot. If you are going to rely on OA then it would be wise to experiment with it......carefully. As a rule I do not fly the Mavic 2 with OA switched on as I normally set the RTH height high enough to clear any obstacles. Experimenting with OA tends to raise the blood pressure a bit.
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