Indicated Airspeed Mode (Ias) - Garmin GFC 600 Pilot's Manual

AFCS
When VS mode is selected on the GMC 605, the previous Vertical
NOTE:
Speed bug value on the Garmin PFD will be ignored (there is no Vertical
Speed preselect function).
• Subsequent changes to the Vertical Speed reference can be made with either the
GMC wheel or the PFD Knob and the value will remain in sync between the GMC
and PFD.

INDICATED AIRSPEED MODE (IAS)

Indicated Airspeed mode is selected by pressing the IAS key. This mode acquires and
maintains the Airspeed Reference (IAS). The Airspeed Reference is set to the current
airspeed upon mode activation. The IAS reference can be changed using the NOSE
UP/DN wheel. Moving the knob in the NOSE UP direction decreases the reference by
1 knot per click, and the NOSE DN direction increases the reference by 1 knot per click.
The airspeed reference can also be adjusted by pressing the CWS button, hand-flying
the aircraft to establish a new airspeed, and then releasing the CWS button.
Engine power must be adjusted to allow the autopilot to fly the aircraft at a pitch
attitude corresponding to the desired flight profile (climb or descent) while maintaining
the Airspeed Reference.
GMC 605 AND GI 285 ANNUNCIATIONS
The GMC 605 and GI 285 annunciate 'IAS' for Indicated Airspeed mode. Additionally,
the GMC 605 displays the Airspeed Reference value in the mode reference section.
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GMC 605 Annunciating Indicated Airspeed Mode
Garmin GFC 600 Pilot's Guide 190-01488-00 Rev. B