Phantom Menace
 lvl.1
United States
Offline
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Spent the day yesterday looking for the horse, mostly on foot. I had pre-programmed 23 different search grids for the Phantom to fly (using Litchi) ahead of time over fields, sparse wooded areas, and streams and ponds. Unfortunately, due to my own error, I did not take into account that in one area when I flew from one field, over a stand of trees to an adjacent field, the second field was on a hill. A fairly substantial one. By the time the drone got to the opposite end of the second field, I had lost 60 or 70 feet of altitude as the ground rose up and my flight path brought it right into a tree instead of over it as planned. I didn't see it coming because at the same time, my RC disconnected. No video feed, no control. The control part didn't matter to the ground station mission since it was carrying out it's instructions on its own, but it prevented me from seeing how low it was, and even if I could see it line of sight, I couldn't tell it to return to home because of the RC signal loss. I don't know why it lost signal. It wasn't more than 3000 feet away, and I have a booster antenna from FPVLR on the RC which has worked great for me for months. I have gotten over 3 miles even in tough areas with that booster. There were a lot of power lines around, so that may account for it. I was also in a bit of a valley with a lot of tall trees.
In any case, it flew right into a tree and came down. It was easy to find because I knew the exact flight path it was on, so we just followed that from the last place we had a video signal.
Once I lost the signal, I wanted to just call it home, because I was nervous not being able to see what it was doing, but with no connection to the bird, the return to home or switching flight modes didn't have an effect. It didn't auto return with loss of signal because it was in F mode and was executing a ground station mission.
So except for the unexpected disconnection, the drone did everything it was told to do perfectly. If only Google Maps told you elevations as well, I would have set higher altitudes over the second field.
Damage included three props, the Gimbal mount, (but not the gimbal or camera remarkably) one of the cables that goes from the case to the gimbal, and several cracks in the case. As far as I know, that's it. Less than $100.00 in parts, and I will do the repair myself. I have yet to test all the systems, so I am relying on visual inspection at this time. I don't want to power it back up until I have opened it up and replaced cables and such.
We continued on foot to inspect several other fields looking for the horse, but turned up nothing. We couldn't cover the same area by foot, but we didn't waste the day. Also, there are a lot of hunters in the area. They have all been notified through groups, and individually of the missing hose and are on the lookout. They may be the best chance to find the animal. They have eyes out in the woods and fields more than anyone else and would certainly notice if a lone horse were walking around.
We still hope for a positive outcome, but it's been a long time now.
Thank you for your suggestions. |
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