Today I went out to do some crop surveying with my Pixhawk powered quadcopter. I was in the middle of a auto survey mission about six minutes in the copter went down. I don't know why. The frame is shot but all the electronics are still good. I am willing to symbolically buy someone a beer if they can figure out what went wrong.
PM if you are interested in helping or the log file is attached.
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I took a look at the mission planner .tlog today vs the .log on the Pixhawk. Right before the flyoff/crash on the HUD the message "BAD AHRS" appeared. Once that message came up the copter lost control and crashed. With that information can I look at any particular parameter to see what caused the "BAD AHRS"?
2015-06-09 12-11-13.tlog
have you checked the pwm signals compared to axis input IMU and output. If it was an esc you should see a big spike in pwm and and axis output and a no comparable correction from input from the IMU. Or you can run a test by hard wiring and testing escs to receiver.
All the ESC's and motors are working. I have put them on another frame and they spin up fine.
Is was borderline too windy to fly, but I have flown in higher winds.
It may be as simple as the 3DR radio antenna (I have an extended one) come in contact with one of the propellers.
what are your failsafes set to? and is there any type of transmission antennas within a 500 yard radius of flying, if so the approximate distance and type of tower.
Where there any error's recorded on your logs, and have you checked your IMU and gyro stats yet?