The complete propeller assembly should be absolutely flush. If there are any noticeable misalignment, remove
the discs and sand the surface to remove any carbon fiber specs or foreign particles.
Mount the propeller assembly to the motors by spinning them a few turns while holding the motor bell. For
quick swap, hold the motor bell and with a firm grasp at the core of the propeller, twist in the opposite direction
of the propeller rotation to release the lock and unmount the propeller.
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