Experienced flyers would say that the question is simplistic. It's like asking, "How far can a boat go on a tank of gas?"Experienced flyers would be able to give a number.
Good suggestion. I try to have 20% battery capacity over the Home Point.Just fly out 500m on a straight line and back 16 times and then do circles around the home point for as long as you can? I would say just make sure you're on your way back down from your 500m altitude* once the battery is at like 15%?
*this isn't an endorsement of flying that high but for the sake of the experiment we'll assume you're doing it safely and legally
If you lose radio contact at 500 meters altitude, will the aircraft gracefully return home, descend first and return?
Or will RTH not work and the aircraft just drops, not descend under control?
Do you have a reference for this?
2.7 km off oceanic island at 500 m + time to shoot at destination is doable. (5 flights, last landed with 36% battery and ~7 min RTH time above home point if i recall correctly. Will check the flight logs)
Interested at 1,000 m, as well if anyone has experience.