Trio Avionics EZ Pilot - v 1.9 - Manual (Page 35)

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FINE CRS QLT= 1
FINE TRK QLT= 2
FINE CRS QLTX 3
FINE TRK QLT=
2
FINE TRK QLT= 3
FINE CRS QLTX 3
7.8 System Optimization, Flight Time, Distance Counters and Totalizers
7.8.1 System Optimization
The response of the aircraft to system commands can vary considerably
depending upon a number of factors. The mass of the airplane, the sensitivity to
control movement, and the way the ailerons are rigged can affect aircraft
response to control movement.
The EZ Pilot allows the pilot to adjust 3 system parameters to achieve optimum
performance. However, care must be exercised when adjusting these numbers.
Too much gain may cause the aircraft to hunt, or oscillate, around the course
line. Too little gain will result in slow response to system commands or offsets in
tracking.
The 3 adjustable parameters that are available to the pilot are:
1. FINE CRS QLT: Fine course quality. This adjustment controls how sensitive
the system is to course commands when in the Course (CRS) mode, and
within 5 degrees of the desired course. It has no effect outside of 5 degrees
of the selected course heading.
2. FINE TRK QLT: Fine track quality. This adjustment controls how sensitive
the system is to commands when in the Track (TRK) mode, and within .07
miles of the track centerline. It has no effect outside of .07 miles.
3. PULL IN: Pull In controls system response when the aircraft is outside of the
.07 miles crosstrack error or showing greater than 5 degrees of error to the
selected course.
These settings should normally have to be set up only once, during your first test flight.
To adjust the settings it is necessary to enter the “Calibration Menu” as follows:
Press the “DISPLAY” button and hold it in for 6 seconds. After six seconds the flight time
(EZ Pilot II only) and /or calibration screens will be displayed. If the flight time screen is
displayed, momentarily press the DISPLAY button until the below screen is on the display
If you wish to change the gains you can gain
access to them by using the following
procedure:
To change the gain of the FINE CRS QLT,
you must press the MODE switch once.
This will replace the equal sign (=) with a
triangle or “arrow” that indicates that the gain
number can be changed by using the L-R switch. You can increment the number,
increasing the gain, by momentarily pressing the L-R switch to the right. Pressing the
button to the left will decrement the gain value. When adjusting the gain number it is best
to increment or decrement by a count of 1 and then observe the aircraft response.
To change the gain of the FINE TRK QLT,
press the MODE switch again. This will
advance the arrow to the next line and
allows use of the L-R switch to adjust the
Fine Course Quality gain.