A better alternative is to use Litchi. While the above method can give you battery lifetime under realistic flight conditions, with Litchi you can do that as well as have a pretty good idea of distance travelled.
Method: Setup a mission with way points on a smooth track and the entire mission conforming to LOS, In mission settings set up the end of mission behaviour to be return to first way point. This way AC will go round and round the mission autonomously!
Good old Litchi will give you the total mission distance as well as the time it takes for one loop of the mission. The longer the mission the less the accumulated errors per loop from the above figures Litchi gives you will be.
Sit back and keep an ear out for any warning sounds from the controller.
To help with final sub mission distance calculations, Litchi gives you distance between way points.
Method: Setup a mission with way points on a smooth track and the entire mission conforming to LOS, In mission settings set up the end of mission behaviour to be return to first way point. This way AC will go round and round the mission autonomously!
Good old Litchi will give you the total mission distance as well as the time it takes for one loop of the mission. The longer the mission the less the accumulated errors per loop from the above figures Litchi gives you will be.
Sit back and keep an ear out for any warning sounds from the controller.
To help with final sub mission distance calculations, Litchi gives you distance between way points.