Rapid Change in Ground Distance

[jves]

What would be the effect on the Q500 with a rapid change in ground
distance? Example: Liftoff to 20' than fly over cliff edge with distance to
canyon bottom 1200' below. I performed this maneuver in Utah and the
bird became unstable as it flew past the edge of the cliff. Not sure what caused the erratic/wobble flight. Possible updrafts or rapid distance to
surface change?
Many thanks for any input.

 

[Ed M]

If you were at 20' when going off the edge it still thinks its at 20'. It does not know its at 1220 ft.

 

[Subtle Shots]

Most likely it is excessive updraft wind speeds and gusts causing the unstabilities

 

[BlueFighter8]

Totally agree with Subtle Shots. I was flying my typhoon 4k just 6 or 8 feet above ground level and it started to get windy. the speed of the wind was no more of 10-12 mph but I noticed that some wind gust were stronger on ground level than above. The bird was flying erratically changing altitude on its own.