S-TEC System 55X, Руководство по эксплуатации

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4-12 2nd Ed: May 31, 2002
SYS FIFTY FIVE X POH
NOTE:
Some Fifty Five X Autopilot installations inhibit the use
of the GPSS mode when the NAV source selector switch
on the GPS navigator is in the VOR / LOC position or
the external NAV selector switch (as appropriate) is in
NAV position. To determine how your system operates
conduct the following pre-flight test:
1. Provide power to the autopilot.
2. Observe a ready (RDY) indication on the annunciator.
3. Select VOR / LOC on the GPS navigator or select the NAV Mode on the
external NAV selector switch (as appropriate). Channel an invalid VOR
frequency.
4. Press the autopilot NAV button twice. If flashing NAV and steady FAIL is
annunciated, the system is inhibited from entering the GPSS Mode
with the NAV source selector switch in the VOR / LOC or NAV position.
If flashing NAV, GPSS, and steady FAIL is annunciated, the system is
not inhibited from entering the GPSS Mode anytime the NAV button is
pressed twice. The following CAUTION will apply to those systems.
CAUTION
With the autopilot in the GPSS Mode, NAV and GPSS will be
annunciated. In this mode, guidance is received directly from
the GPS Navigator regardless of what is displayed on the
NAV indicators (HSI, CDI...). If the GPS Navigator has a valid
flight plan active and the autopilot is in the GPSS Mode, the
autopilot will follow that flight plan. If no flight plan is active,
the autopilot will annunciate a flashing GPSS and FAIL will
be steady. The aircraft will continue straight, wings level .
NOTE:
For all autopilot navigation operations not utilizing GPSS,
ensure that GPSS is NOT annunciated.
4.2.6 Standard GPS Approach
NOTE:
The autopilot is capable of conducting non-precision
GPS approaches when coupled to a valid GPS signal.
These are conducted in the same manner as a VOR
Approach.
1. When the autopilot is interfaced with an HSI or DG it is capable of
intercepting and tracking a valid GPS course.
2. Place the Course Pointer on the HSI or HDG bug on the DG on the
indicated bearing to the waypoint.