Gen II User Manual
7-10 – Main Rotor Track & Balance Chapter 7 Revision 3.00, Apr 2020
“All”, the analyzer will present all of the available solutions for vertical, lateral and
track readings.
Analyzers with App Version Service Pack 5 and subsequent*
The two solution options are “Max” and “Avg”.
“Max”, Unchanged from Service pack 1-4. the analyzer will present the solution for
the highest vibration reading attained for the vertical and lateral sensors.
“Avg”, the analyzer will present an average solution for the charts that have the same
type of adjustment (e.g. Pitch Link). For example, if two conditions have two Pitch
Link charts, the analyzer will present one average solution.
*To verify the current version of your analyze, see paragraph 22.3.2 “Analyzer
Version Information”.
When completed, press [OK].
7.1.5. – Chart Definition
The final step in the setup process is to define the electronic chart forms as described in
paragraph 7.7 below, Analyzer Chart Forms. Vertical chart(s) will be defined first, followed by
the lateral chart(s), then any track adjustment influences required. When all charts have been
completed, press [OK] to save the setup and return to the “Main Rotor Manage Setups” menu.
Follow paragraphs 7.1.6 through 7.1.6.7 for a complete example of a typical main rotor setup.
7.1.6. – Main Rotor Setup Example
This setup example is applicable to a helicopter type that utilizes pitch change link adjustments
to correct for vertical vibration in a hover, weight and blade sweep adjustments for lateral
vibration in a hover, and blade trim tab adjustments for vertical vibrations in forward flight
regimes. The polar charts used for this example are illustrated below.
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