King Air C90GTi, Руководство по подготовке пилотов

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FOR TRAINING PURPOSES ONLY
16-7
sage. Refer to the REFS section of the Display
Control Panel (DCP) for more information.
This transition point cannot be changed to an
altitude other than 18,000’.
The vertical speed display consists of a moving
green line that will angle up or down depending
on the current vertical speed (Figure 16-12).
The value of climb or descent will then read at
the top of the display for a climb or bottom of
the display for a descent,when the value is
greater that 300 ft/min. Once the climb or de-
scent decreases below 100 ft/min the digital
readout will be removed.
Figure 16-12. Vertical Speed Indicator (VSI)
Displayed above the altitude tape is the pres-
elected altitude shown in cyan. This altitude is
selected by the pilot using the ALT knob on
the Flight Guidance Panel. The selected alti-
tude is then marked with a Fine Preselect Al-
titude bug that “brackets” the altitude window
when captured (Figure 16-13). A smaller
Coarse Preselect Altitude bug will appear on
the left side of the tape when approximately
1000’ from the selected altitude to indicate
proximity to that altitude. An aural tone will
sound and the preselected altitude will flash
further indicating proximity to the chosen al-
titude. Once within 200’ of the preselected al-
titude, the flashing will stop. This flashing can
be stopped earlier by pressing the ALT knob
on the flight guidance panel. (See the Flight
Guidance section later in this chapter.)
Should the aircraft go ± 200’ from the altitude,
an aural tone will sound and the preselected
altitude will change to yellow and flash. This
flashing will continue until the altitude returns
to within 200’ of selected. This flashing can be
stopped by pressing the ALT knob on the
flight guidance panel.
Figure 16-13. Altitude Preselect Bugs
This top display area can also contain the met-
ric altitude and metric altitude preselect (Fig-
ure 16-14). Refer to the REFS section of the
Display Control Panel (DCP) for more infor-
mation. This action will affect both pilots and
cannot be done independently. This change
does not alter the actual altitude tape; that re-
mains in feet for all phases of flight.
Additionally, a magenta number can be dis-
played above the VSI (Figure 16-10). This
number is FMS generated and indicates the
crossing restriction altitude for the current leg
(this can come automatically from the FMS
database or manually by pilot input into the
FMS). If desired, this number, in addition to
the preselected altitude, allows the FMS to au-
tomatically fly a vertical navigation (VNAV)
procedure and comply with all the known
step-down fixes.
1
2
4
4
2
1
300
Current V ertica l
Speed
Flight Guidance
Selected Vertical
Speed
VN A V V ertica l
Speed Required
7
20
400
80
300
200
500
600
Fine Preselect
Altitude Bug
Coarse Preselect
Altitude Bug
7
500
Preselect
Altitude
KING AIR C90GTi/C90GTx PILOT TRAINING MANUAL
16
A
VIONICS