SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
Modes of Operation
8-8
The flight guidance computer generates the proper roll command to
bank the aircraft to capture and track the selected VOR radial, as
shown in Figure 8--6.
VOR (NAV) Mode Capture Profile
Figure 8--6
When the course select pointer is set on the EHSI using the CRS knob
on the instrument remote controller, the course select error signal is
established. This signal represents the difference between the actual
aircraft heading and the desired aircraft course. The course error signal
is sent from the symbol generator to the flight guidance controller.
The lateral gain programming is performed as a function of DME
distance to the station and barometric altitude. This gain programming
adjusts for the aircraft either coming toward or moving away from the
VOR station. The DME compensation circuit approximates ground
range to the station for more accurate gain programming and to help
calculate the over station sensor.
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