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


 FIXED PITCH PROPELLERS - Cast/Fabricated  (AIRFLOW = PM)
                                                        AIRFLOW = PM (AIR THROUGH PROP THEN MOTOR)

 Airflow Direction                                      Rotation is determined by viewing the propeller
                                                                     from the discharge side of the fan.
 Leading Edge of Blade
 - Air is drawn through the propeller from the leading
 edge of the blades.                                                                  Intake Side
 - 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
 RH Rotation








                                                          Intake



                                                                                    RH Rotation
 NOTE 1: Airflow direction and rotation must be correct in order for
 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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