S-TEC System 55X, Руководство по эксплуатации

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2nd Ed: May 31, 2002 4-35
SYS FIFTY FIVE X POH
If the course pointer is within 5
!
of center and needle deflection is less
than 10%, the computer will immediately establish this sensitivity level
when REV is selected.
Since the heading bug is not used for the final approach segment, the
pilot may elect to move the heading bug to the published Missed
Approach Heading for reference and use in the Heading Mode, should
a Missed Approach be necessary.
The system also includes a course deviation monitor. If the aircraft
strays off LOC centerline by 50% needle deflection, the NAV annunciator
flashes a warning. It also flashes when the HSI NAV flag is displayed.
When this occurs, the FAIL annunciator will illuminate.
4.3.11 Pilot Selectable Intercept Angles (Optional HSI)
The pilot may select an angle of intercept less than the standard 45
!
.
This is done by placing the heading bug on the desired heading to be
used for the course intercept while simultaneously pushing the HDG
and REV switches. HDG, APR, and REV is annunciated.
The selected heading is flown until the autopilot computes that an
on-course turn must be made to minimize overshoot at the point of
intercept. When the on-course turn begins, HDG Mode will extinguish.
NOTE:
Intercept angles greater than 45
!
usually result in
some course overshoot, depending on the distance
from the station and aircraft speed. Therefore,
angles greater than 45
!
are not recommended.