Garmin G1000 Socata TBM 850 User Manual download pdf (Page 395)

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101

190-00709-00 Rev. A

Garmin G1000 Pilot’s Guide for the Socata TBM 850

7-11

AUTOMATIC FLIGHT CONTROL SYSTEM

ALTITUDE HOLD MODE (ALT)

Altitude Hold Mode can be activated by pressing the

ALT

Key; the ﬂight director maintains the current aircraft

altitude (to the nearest 10 feet) as the Altitude Reference. The ﬂight director’s Altitude Reference, shown in the

AFCS Status Box, is independent of the Selected Altitude, displayed above the Altimeter. Altitude Hold Mode

active is indicated by a green ‘ALT’ annunciation in the AFCS Status Box.

Altitude Hold Mode is automatically armed when the ﬂight director is in Selected Altitude Capture Mode (see

Figure 7-8). Selected Altitude Capture Mode automatically transitions to Altitude Hold Mode when the altitude

error is less than 50 feet. In this case, the Selected Altitude becomes the ﬂight director’s Altitude Reference.

CHANGING THE ALTITUDE REFERENCE

NOTE: Turning the ALT SEL Knob while in Altitude Hold Mode changes the Selected Altitude, but not the

ﬂight director’s Altitude Reference, and does not cancel the mode.

With the

CWS

Button depressed, the aircraft can be hand-ﬂown to a new Altitude Reference. When the

CWS

Button is released at the desired altitude, the new altitude is established as the Altitude Reference.

Selected

Altitude

Bug

Selected

Altitude

Command Bars

Hold Pitch Attitude

to Maintain

Altitude Reference

Figure 7-9 Altitude Hold Mode

Altitude Hold

Mode Active

Altitude

Reference

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Garmin G1000 Socata TBM 850 User Manual Page 395

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