JJBspark
Core User of DJI
Flight distance : 12225059 ft
Netherlands
Offline
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Hi Ole-Jacob,
Had a look your 2 flights.
Second flight
At distance 63 meters away from HP (after 38 s) a Yaw error was seen.
Yaw errros often are followed by Interference warning, wich switches the drone into ATTI mode.
Luck for you that after approx 4 seconds P-GPS mode was back again, so AC easy to control.
Third flight
After takeoff a compass error is there, followed by speed and Yaw errors, and as 'normal' into ATTI mode.
Sometimes the cause Compass error direct after takeoff is a calibration carried out in an compass unfriendly envirioment. (near cars, steel, rebar etc)
It looks that your takeoff position was on a road, did you do a compass calibration before this flight? (don`t think so, not in your flightrecord)
IMO Spark drones have too often Yaw, Speed, Compass, IMU errors (out of the blue...) wich result in ATTI mode, often for the user un-controllable...loosing the SPARK.
See the pictch angles changes when SPARK get into ATTI, after that speed increases highly.
IMO best thing to do in ATTI is no stick input (as you did) , see what is happening and yaw AC towards home, than apply fwd stick.
This ofcourse if there are no obstacles and height is OK.
My advice is to calibrate Spark in the middle of a green field.....calib the IMU as well.
Second advice is to fly always with a screen recorder active, usefull to see what happend on the screen afterwards and kind of proof to show if you loose your Spark.
cheers
JJB
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