Ok... I intend to take my PV2+ to the south of France and take some footage of the Gorge du Verdon. I'm just wondering how it will work if I was to take off from the side of the Gorge, at say 800ft above sea level, and fly down into the Gorge... A) am I breaking the law by taking off so high?
B) will the drone get very confused flying under the take off height? And C) if it was to lose signal and fly home whilst it whilst down in the gorge, would it get even more confused? Or would it cope with the negative height thing?
Thanks in advance!

Pilots flying to negative values have reported no issues. Just make sure you have satellites and home lock set. After travel you'll need to re calibrate the compass for that Regina. Good luck and get some good videos!

Thanks Roy...  Any advice on the launching height? Ie France is 500ft, but is that from take off or from sea level?

Anymore for anymore? Please? ☺

the1stcoke@aol. Posted at 2016-2-7 04:42
Anymore for anymore? Please? ☺

Your flying height is determined from your take off point,
If you take off from 500' above sea level or 3000' it does not matter, your flying height is always referenced from that point.
So if you take off at 3000' sea level and fly 200' high, you are only 200' high!

Thank you. I guess thats the logical answer, I just didn't want to assume.

My "interpretation" is it's 400 from the point below the quad and not from launch point. If you're flying towards a 500 foot hill, 400 foot is irreverent when you get there.

Username Here Posted at 2016-2-7 10:54
My "interpretation" is it's 400 from the point below the quad and not from launch point. If you're f ...

Your interpretation seems to be AGL (Above Ground Level)  but that's not the way the Phantom works and you'd fly into hill if the hill you're flying toward at 400 feet is 500 feet above your registered Zero Point.  

Edit to add:  however if you are refering to recommended max.  flight altitude then yes this is AGL

PanamonCreel Posted at 2016-2-8 12:48
Your interpretation seems to be AGL (Above Ground Level)  but that's not the way the Phantom works  ...

The FAA registration process states..."I will fly below 400 feet." My interpretation of that is AGL not launch point level. When DJI starts assuming liability for me when I fly I'll consider their input. I've got four Phantoms and they're all set to 1640 feet in height. Do I fly over 400 feet...no, I live in an area where the land is pretty much flat and don't need to go higher. Most of my flying is done at 250-350 feet high.