I was wondering if anyone may have some technical insight on a flyaway I had today. I have read about flyways before, but thought it almost impossible for it to happen. I have only been using quad copters for a year now. While I have had crashes, this is the first time I have had a flyaway and it was very alarming. Fortunately with a lot of struggling, I was able to fight it and get it back. I fly it for both business and personal use. Whenever I am out in nature, I never ever have problems. Today I was using it for the first time this year shooting a TV commercial for a junk yard. I was getting compass errors, so recalibrated it a couple times until all lights were green. See attached photo. Plenty of space around it away from the autos too. I let it hover for a while and it seemed okay, so I took off and then it went flying off in the opposite direction. The autos don't seem like they would be enough to cause that sort of a problem/interference. Thoughts? Also, wouldn't the onboard computer be doing a hand shack with the other sensors like the GPS? You would think the GPS would add as a redundant backup telling the compass, hey you are screwing up. Really weird. Any insight would be greatly appreciated.