I just ran across a very interesting post in an Arducopter forum that referenced being able to analyze why a particular "run-away" occurred by looking at something called a dataflash log file. Do any of the DJI Phantoms create such a log file and if not are there plans to make this capability available in future? If its just a difference between flight controllers (APM vs NAZA), can Phantom owners somehow currently augment their systems to record pertinent flight data and transmit this data back to a ground station? If nothing else it might help reduce/eliminate follow-on run-aways :idea: The Arducopter in question was retrieved and I'm guessing the flight data was somehow pulled off the APM flight controller. My idea of a "transmitted" data file would be taking post flight analysis to the next level because even a non-recoverable bird would have left clues about why things went wrong.