5-6 – Main Rotor Track & Balance 5 Revision 3, Oct 20125.1.3. – Tracking Influence SetupThe tracking influence setup screen is used to define the type and number of adjustment unitsused to move a blade 1.0 unit of measure at the condition listed.Conditions: The condition name will be automatically entered and is not editable.Adjustment Name: Using the keypad, enter a three-character identifier for the adjustmenttype. Example = PCL (Pitch Change Link), SWP (Sweep), WGT (Weight), and TAB (Tab).Unit: Using the keypad, enter a three-character identifier for the unit of adjustment type.Example = FLT (Flat), PTS (Points), GMS (Grams), DEG (Degrees), and THO(Thousandths).Adjustments / in (mm): Enter the number of adjustment units to move the blade 1.0 unit ofmeasure. This will either be requested in Adj/in or Adj/mm depending on the measurementunits selected in the initial setup screen. In this example, it will take an adjustment of 6 flatsto move the blade tip one inch in ground or hover conditions.Max ICF Update: This field is used to restrict the learning criteria for track adjustments. Theexample uses 50%. With 50% selected, any movement over 50% of the expected result for agiven adjustment, and the analyzer will not update the ICF. Using the keypad, enter thedesired parameter to be placed in the setup.No Adjustment Bld/Pos.: This field is used to designate a main rotor blade as a “noadjustment blade.” This feature is used when the OEM suggests that no adjustments beapplied to a particular blade during a track and balance job. An optimized solution isprovided by the analyzer that requires no adjustments to the designated “No AdjustmentBlade”.Tracking Planes: This field is used to designate the number of planes in which the main rotorblades fly. If all blades fly in the same plane, select <1>. If there are two distinct planes forthe blade path select <2>.
