Why do the propellers of the DJI Matrice 3D series rotate slowly before take-off?
The propellers of the DJI Matrice 3D series rotate slowly before take-off for a few seconds and this is due to the aircraft taking a few seconds pre-flight to check the integrity of the propeller through the lenses. If there is any damage larger than 10 mm on the propellers, the take-off will be suspended to ensure flight safety.