Forward and backward trimmer
During take off, if the drone tilts forward,
press down the left lever in the center,
and push the right lever backwards.
Otherwise push forwards.
Left and right turning trimmer
During take off, if the drone head rotates
to left, then press down the left lever in
the center and push left lever to right.
Otherwise push left.
Left and right side flying trimmer
During take off, if the drone tilts to left,
then press down the left lever in the
center and push the right lever to right
side. Otherwise push left.
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