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A2, compass error, continual yaws
677 3 2018-5-28
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stevietee10
lvl.1

United Kingdom
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Hi
I have A2 system on TBS Discovery, with iosd mk2
Compass calibration apeared to work OK, no error messages and LED colours were all correct
However on lift off, height about 4 metres it started to yaw on the Z axis, got faster and crashed before I could regain control
Motor directions are correct, prop placement is correct
Below are my calibration figures, done on mobile app.
Do these numbers look good? compass Z seems very high.
I am at Lat. 52.504775  Long. -1.446813

This system has flown before but grounded for some months now.

calibration results

calibration results


TBS Discovery

TBS Discovery


Any help gratefully received
Cheers
Steve

2018-5-28
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DJI Mindy
Administrator
Flight distance : 7 ft
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Hi Steve, please connect A2 to DJI A2 Assistant and calibrate the IMU.
Please pay attention to the mounting location, fill in the coordinate of IMU/GPS based of X, Y and Z axis, the GPS label should face the sky and the arrow point to the nose direction of the aircraft. GTScreenshot_20180529_160022.png
2018-5-29
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stevietee10
lvl.1

United Kingdom
Offline

DJI Mindy Posted at 2018-5-29 00:00
Hi Steve, please connect A2 to DJI A2 Assistant and calibrate the IMU.
Please pay attention to the mounting location, fill in the coordinate of IMU/GPS based of X, Y and Z axis, the GPS label should face the sky and the arrow point to the nose direction of the aircraft.[view_image]

HI @DJI Mindy

Thanks for your prompt reply.
I've sorted the problem and I feel rather foolish  
Loose prop nut !!
It flies now good as it used too

Many thanks
Steve
2018-5-30
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DJI Mindy
Administrator
Flight distance : 7 ft
Offline

stevietee10 Posted at 2018-5-30 00:04
HI @DJI Mindy

Thanks for your prompt reply.

Glad to know the issue has been sorted out, please let us know if there is any other issue, enjoy flying.
2018-5-30
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