I almost had a disaster with my E2P this week. After shooting a water ski lake near a river, I was backing away at an altitude that I thought was well above the tree line. But I didn't notice how close the drone was to the cliff on the other side of the river. The cliff had trees on it. I think the Obstacle Avoidance would have stopped the drone before hitting anything but when I saw how close the trees were, I stopped, gained altitude and moved forward. The event is at 3:12.
That brings up an interesting point. The E2s are well protected in 6 directions (up, down, right, left, forward, backward). But if you approach an obstacle at any other angle, you won't be protected. I love the look of flying at about 45-deg, either forward or backward. Moral of the story: make sure visually that there are no obstacles when flying anything except forward. Of course, that's a good idea in general.
That brings up an interesting point. The E2s are well protected in 6 directions (up, down, right, left, forward, backward). But if you approach an obstacle at any other angle, you won't be protected. I love the look of flying at about 45-deg, either forward or backward. Moral of the story: make sure visually that there are no obstacles when flying anything except forward. Of course, that's a good idea in general.