King Air C90GTi, Руководство по подготовке пилотов

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OPERATION
INTEGRITY
WAAS geo-stationary satellites provide in-
tegrity messages for the FMS v4.0. When the
FMS detects a navigational problem “LOSS OF
INTEGRITY” will show on the CDU and MFD.
The PFD will also show an “LOI” or “LOI
TERM” message depending on the phase of
flight (see Table 16A-1).
When the “LOSS OF INTEGRITY” message
i s a c t i v e t h e F M S m u s t n o t b e u s e d a s
primary navigation.
If only the WAAS signal is degraded but the
GPS signal is unaffected (for instance, a loss
of geo-stationary satellites or being outside of
WAAS ground station coverage) no messages
will appear for non-SBAS procedures since
they do not require WAAS. The FMS will au-
tomatically begin using what is called Receiver
Autonomous Integrity Monitoring (RAIM).
RAIM is the error checking technique used by
all non-SBAS units or in SBAS units after
SBAS has failed.
The aircraft position will not be as accurate but
is still well within the boundaries of standard
RNAV operations. If the RAIM error gets too
large, the FMS will post the “LOSS OF IN-
TEGRITY” message as previously discussed.
DEPARTURES
During RNAV departures CDI deflection val-
ues will match the navigational performance
requirements of the procedure. US RNAV de-
partures and Europe P-RNAV departures are
labeled RNAV 1 and the CDI will be ± 1nm for
the entire procedure. This will be annunci-
ated as “TERM” on the PFD.
CDI deflection values will change according
to the following:
• ± 1 nm: On a departure procedure OR
within 31nm of an airport
• ± 2 nm: Outside of 31nm from an airport
AND not on a departure
KING AIR 90 SERIES PILOT TRAINING MANUAL
16A
WIDE
AREA
AUGMENT
A
TION
SY
STEM
16A-3 FOR TRAINING PURPOSES ONLY
CDU
PFD MFD
Terminal
(within 31nm of origin
airport or on a RNAV
departure)
Enroute (outside of 31nm
of origin and not on a
RNAV departure)
Table 16A-1. LOSS OF INTEGRITY