z28lt1
Second Officer
Flight distance : 336204 ft
United States
Offline
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I posted in another thread that I was having problems keeping altitude with my P3A, and was trying to determine if it was unique to my unit, or just part of the situation of flying these thing. I've been doint all the things I've read to do (calibrate contorler, upgrade firmware, calibrate IMU, etc...) and running test flights on my patio to see if it resulted in a change. I would take off and try to hover at about 6 feet, and watch as within a minute or two it would be about a foot off the ground. I did a handful of these testing all my callibrations, upgrades, etc.
Anyway, I was reading that temperature could have a big impact on the baramoter, so on this flight, I sat outside for a bit with the Phantom to get it close to ambient temp. I then powered on the motors, looked things over for a bit (25 seconds according to the logs) to check GPS, homepoint, etc, and left-sticked up to take-off. The bird immediately took off about a foot or two, went hard left, and crashed a second or two later about 15 feet away, landing upside down (and then obviously then losing sats). I did a CSC as soon as I could once it was on the ground upside down, and got it shut down quickly.
Since I was within my Amazon 30 day return window, I was considering exchanging it anyway due to the altitude issues, bit with this latest event, I didn't even investigate the latest status of the unit -- I processed the exchange. New P3A arriving today, thanks to Amazon's good policies and prime shipping, and this one will go back in the box to them tomorrow.
While I'm not keeping it, I thought it would be good to try to figure out what happened to avoid it in the future if possible. For reference, on this flight, Controler and Phantom were on the latest firmware (where I had done one test flight and one "real" flight before, both without event except the losing altutude issue), IMU and Controler had been calibrated 2 flights before. The compass was not calibrated immediately before this flight, although I did not get any compass errors. GPS was showing 10 sats at takeoff, and then homepoint had been set. Battery was listed as 98% charged on takeoff.
The healthdrone log is at: P3A Crash on takeoff log
and the Unit's .dat file is at P3A Crash on Takeoff .DAT
Anyone have any ideas?
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