Gluonpilot

Hi,

Will the aircraft stay at a constant 100m height if there are hills in it's line of flight. I read that some autopilots uses lidar data from google earth if it's available to do this. I assume the barometric values are relative to the location it took off from so wouldn't really help with this.

Thanks,
Tim.

Yes, it uses the barometric altitude to keep constant altitude (relative to sea level)

Just to be clear before we send it off towards a hill, will it stay at a 100m above ground level going over a hill ?

Thanks,
Tim.

No, it will not follow the ground level. It will stay at the same absolute altitude, so 100m above the take-off position.