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                    FAN-PEDIA                                                                                                                                                                                                                                         PROPELLERS
                     Published by                                                                    AEROVENT.COM
                       Aerovent                                                                                                                                                                                      AIRFLOW/ROTATION OVERVIEW
                         ©2017


                                                                                                                                                                                                                       AIRFLOW = PM (AIR THROUGH PROP THEN MOTOR)
                                   ADJUSTABLE PITCH PROPELLERS (AIRFLOW = PM)
                                                                                                                                                                                                                      Rotation is determined by viewing the propeller
                                              Airflow Direction                                                                                                                                                                    from the discharge side of the fan.

                                              Leading Edge of Blade
                              - Air is drawn through the propeller from the leading                                                                                                                                                           Intake Side
                                  edge of the blades.
                              - The concave side of the blade cups the air and
                                  pushes it away from the prop                                                                                                                                                                Airflow Direction
                                                                                                                                                                                                                             air passes through
                                                                                                                                                                                                                          Prop then over Motor
                                                                                                                                                                                                                                (Airflow = PM)
                                                                                                                                                                                                                               aka: Hub on Intake







                                                                                                                                                                                                                                                                                    Discharge
                                                                                                                    LH Rotation











                                                                                                                                                                                                                          Intake


               NOTE 1: Airflow direction and rotation must be correct in order for                                                                                                                                                         LH Rotation
                                the fan to operate at 100% performance.


               NOTE 2: If the propeller rotates in the wrong direction, you will not
                                get any airflow at all in the proper direction.
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