User Guide

Garmin G1000 AFCS Pilot’s Guide for Beechcraft A36/G36

190-00609-00 Rev. B

9-9

FD MODES

Altitude Hold Mode (ALT)

The Altitude Hold mode is engaged by pressing the

ALT key. In this mode, the Flight Director establishes the

current aircraft altitude as the altitude reference.

Changing the Altitude Reference

If desired, the pilot can press the

CWS button and

hand-ﬂy the aircraft to a new altitude reference. When

the CWS button is released at the desired altitude, the

new altitude is established as the altitude reference.

NOTE: If the Selected Altitude is captured during

CWS maneuvering, the Flight Director altitude

reference is not changed. To adjust the altitude

reference in this case, the pilot must again press

the CWS button after the Selected Altitude is

captured.

Figure 9.3.3 Altitude Hold Mode

Altitude Hold Mode is active

Flight Director

command bars

hold pitch attitude

to maintain the

altitude reference

Altitude Reference

Selected Altitude

Selected Altitude Bug

Altitude Arm/Capture

Altitude Hold mode is armed automatically when the

Flight Director is in Pitch Hold, Vertical Speed, Flight

Level Change, and Go Around modes. This is indicated

by the annunciation ‘ALT’, shown in white to the right of

the active pitch mode as shown in Figure 9.3.3. When

armed, the Flight Director captures and levels off at the

Selected Altitude. When the Flight Director starts the al

titude capture, it transitions to the Altitude Hold mode

and holds Selected Altitude. The white ‘ALT’ annuncia-

tion moves to the active pitch mode ﬁeld and ﬂashes green

for ten seconds, indicating to the pilot the transition to

Altitude Hold mode.