Garmin G1000 Pilot’s Guide for the Socata TBM 850
190-00709-04 Rev. A
474
AUTOMATIC FLIGHT CONTROL SYSTEM
FLIGHT DIRECTOR MODES
Flight director modes are normally selected independently for the pitch and roll axes. Unless otherwise
specified, all mode keys are alternate action (i.e., press on, press off). In the absence of specific mode selection,
the flight director reverts to the default pitch and/or roll mode(s). Mode keys on the AFCS controller are
accompanied by annunciator lights (Figure 7-1) which are illuminated when their respective modes are armed
or active.
Armed modes are annunciated in white and active in green in the AFCS Status Box. Under normal operation,
when the control for the active flight director mode is pressed, the flight director reverts to the default mode(s)
for the axis(es). Automatic transition from armed to active mode is indicated by the white armed mode
annunciation moving to the green active mode field and flashing for 10 seconds.
If the information required to compute a flight director mode becomes invalid or unavailable, the flight
director automatically reverts to the default mode for that axis. A flashing yellow mode annunciation and
annunciator light indicate loss of sensor (ADC) or navigation data (VOR, LOC, GPS, VNV, SBAS) required to
compute commands. When such a loss occurs, the system automatically begins to roll the wings level (enters
Roll Hold Mode) or maintain the pitch angle (enters Pitch Hold Mode), depending on the affected axis. The
flashing annunciation stops when the affected mode key is pressed or another mode for the axis is selected. If
after 10 seconds no action is taken, the flashing annunciation stops.
Figure 7-3 Loss of VOR Signal
The flight director is automatically disabled if the attitude information required to compute the default flight
director modes becomes invalid or unavailable.
SWITCHING FLIGHT DIRECTORS
The GFC 700 in the Socata TBM 850 has two flight directors, each operating within an IAU. The autopilot
follows the selected flight director only, indicated by an arrow pointing toward either the pilot or copilot side, in
the center of the AFCS Status Box. Flight directors may be switched by pressing the
XFR
Key. The annunciator
light arrow for the selected flight director is also illuminated beside the
XFR
Key. When the flight directors are
switched, the vertical and lateral modes revert to default.
Figure 7-4 Flight Director Selection Indications
Pilot-side Flight Director
Copilot-side Flight Director
Содержание SOCATA TBM850
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