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Garmin G1000 Cockpit Reference Guide for the Socata TBM 850

190-00708-00 Rev. A

SECTION 6 – AUTOMATIC

FLIGHT CONTROL

6-4

6.4 FLIGHT DIRECTOR MODES

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 modes(s).

Armed modes are annunciated in white and active

modes 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 (AHRS, ADC, IAU) or

navigation data (VOR, LOC, GPS, VNV, WAAS) 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 6-6 Loss of VOR Signal

The ﬂight director is automatically disabled if the

attitude information required to compute the default

ﬂight director modes is invalid or unavailable.

Vertical Modes

The GFC 700 AFCS offers the following vertical

modes. Corresponding controls and annunciations are

given in Table 6-1.

• Pitch Hold (default mode)— Holds the current

aircraft pitch attitude; may be used to climb/descend

to the Selected Altitude

• Selected Altitude Capture — Captures the

Selected Altitude

• Altitude Hold — Holds the current Altitude

Reference

• Vertical Speed — Maintains the current aircraft

vertical speed; may be used to climb/descend to the

Selected Altitude

• Flight Level Change — Maintains the current

aircraft airspeed while the aircraft is climbing/

descending to the Selected Altitude

• Vertical Path Tracking — Follows an active

vertical proﬁle for enroute and terminal phases of

ﬂight

• VNAV Target Altitude Capture — Captures the

VNAV Target Altitude

• Glidepath — Intercepts and tracks the WAAS

glidepath on approach (only available in installations

with GIA 63W Integrated Avionics Units and when

WAAS is available)

• Glideslope — Intercepts and tracks the ILS

glideslope on approach

• Takeoff (in air) — Automatically disengages the

autopilot and commands a constant pitch angle

and wings level on the ground in preparation for

takeoff

• Go Around — Automatically disengages the

autopilot and commands a constant pitch angle and

wings level while in the air

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Garmin Software Version 0719.00 Guía de usuario Pagina 70

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