Hexa rotating intermittantly

dez

Pilot
I need some ideas about how to approach this problem. Any help would be great.

I'm having intermittent problems with my number one hexa. It is the product of a year of testing and has fantastic qualities for video.


It flys like a charm most of the time and then as of last week intermittently it will decide that it wants to rotate to the left without my transmitter input to do so and will keep rotating until I pulse the throttle a few times and then it straightens out and is once again normal.


In these events I notice high revving of a motor or two and it usually happens when I am descending.


It always rotates to the left.


My gut feeling says that one of the motors is having problems for some reason and the other revving motors are compensating.


If it always turns to the left this gives me a clue as to which 3 of the motors it may be. I can't get my brain to figure out which 3 motors. Can someone shed light on that. If I take one motor away from a hexa would it be the clockwise or anticlockwise motor missing that would cause a left spin. Does the revving motor dictate the rotation or, does the slow motor cause a drag causing the spin?


The spin is always gentle and well controlled by the wookong. My settings have never changed. Always about 200 for all settings, and its a 700mm frame with good motors and xor props.


If it isn't the motor, what else could it be? Solder joint? The wookong? Any guesses?

Thanks
 

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