Hi guys.
My hexacopter flew away in start June and i just got it back again today.
I was flying at a local sports field and trying to tune the parameters for a stable flight when it suddenly started to oscillate much from side to side. When i tried to land it, it just took of like a rocket an my hart stopped. Luckily it seemed to stay above me until i lost sight of it.
My Hex was very powerful 12 kg thrust and weighing just 3.8 kg. The batteries were fully charged ad should provide power for about 2.3 min at full thrust. My guess is that it was in 3 to 6 km high when the batteries died.
I had an alarm on it that beeps when the power is low, and i heard that after about 5 min when it fell down but couldn't see it. Sadly there was a row of trees between me and the crash sight witch was in a high cornfield.
I ran through the trees hoping the lipo blew up so i could see the smoke - but no...
I searched and i searched, walked forward an backward for 14 days, systematically with approx 2 meters in between the paths. My phone gps said i walked more than 50 km. (Just 500m x 500m makes 125 km that way)
I talked to the farmer and then today 3 month after the crash he came with whats is the rest of it, and after what he told me, it was just 50m away from when i stopped searching. He newer hit it with his machines but the crash was hard, very hard!
It landed upside down, and therefore all the electronic was dry but filled with dirt.
The apm is bent at one corner and the GPS side connector is broken of and a small microchip right where the arrow saying forward is pointing at on the board.
I really hope some one here can help me at least with some advice, or even better help get the data out from my apm and analyze it. I would give me some peace of mind to know exactly what went wrong so i can learn from it and maybe stop some one else to do what i did and loose their multirotor.
I'm also dying to know the max altitude an the exact crash position.
Please let me know if u know anyone i can contact or i you can help me.
I also uploaded a Yotube video filming the apm.
https://www.youtube.com/watch?v=QJXcZFY9olg (sorry for my bad English)
And my crashed Tarot Hexacopter as i got it.
Replies
The good news, is that the "chip" is the actual place your data/logs are stored !
The pads seem undamaged too.
You should get it soldered back on, and try to read it out.
Hot-air/SMD soldering equipment and some soldering paste is required. Desoldering station is also nice for cleaning the pads.
Judging by your name, you may be living in Norway - if so shipping teh remains would be cheap, and I could do the readout purely by curiosity. (I do have more than the required equipment)
If you with to do it yourself using a common soldering iron, be aware of the danger of destroying pads or overheat the flash - so be careful.
Regards
André