Murphy's law

What ever can go wrong always seems to go wrong on my quad. Its not offen flying wheater in norway, but today there is and everyhing is wrong with my quad. I've solved some problems here is what is remaining.


Flying beta 24, standrad arducopter



The ESC for the right moter has started to beep in mid air. This has worked fine now for 6mnd but suddenly there seems to be trouble. It only gives on beep and then stops. This is repeated with about 30 sekens intervalls.



I first bought one sonar for sparkfun (XL-Max) this was broken so i bought a new one. Mounted it to day, but its not giving verry good preformance. They should work on grass right?


might any one these problems have to do with the new beta?

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