JJB*
Core User of DJI
Flight distance : 12401030 ft
Netherlands
Offline
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Hi,
Had a look at your log as well.
Do you remember wich heading your MM was on the ground before takeoff ??
In the log the craft heading changes (after takeoff) 60 degrees to the right without rc INPUT.
Looks like your compass was disturbed....that`s why (imo) it started to move away!
At about 31 seconds in flight speed from zero to 15 m/s without pitch and/or roll input.
During the climb after takeoff normal pitch/roll values for your MM, so could handle the wind.Suddenly at 35 meters it started to move away, if the wind was the cause than before reaching 35 meters pitch/roll values would have changed.
see the chart, it is at the point where you applied full reverse to stop the craft.But in the log craft heading is 'south' and craft moving 'North', so correction if heading value is correct that forward stick was correct to do.
Conclusion, compass heading (and thus data in the log) in error.
Always check before take-off if the heading of your craft is correct, see the map view for craft heading and check if that is the same as the actual heading on the ground.
BTW 8 or 9 satelittes with 4 bar for reception is OKE, more is better ofcourse. (with 4 bar the HP is set, in your log 5 seconds after sytarting rotors)
At the end of the flight the GPS reception to zero, so fliying in OPTI mode. (be carefull if you not aware of this, RTH does not work with no GPS)
cheers
JJB
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