Pilot's Guide

Garmin G1000 Pilot’s Guide for the Cessna Corvalis/Corvalis TT
190-00552-05 Rev. A4
SYSTEM OVERVIEW
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICESINDEX
• GRS 77 (2) – The Attitude and Heading Reference System (AHRS) provides aircraft attitude and heading
information via ARINC 429 to both the PFD and the primary IAU. The AHRS contains advanced sensors
(including accelerometers and rate sensors) and interfaces with the Magnetometer to obtain magnetic field
information, with the ADC to obtain air data, and with both IAUs to obtain GPS information. AHRS operation
is discussed in Section 1.5, System Operation.
• GMU 44 – The Magnetometer measures local magnetic field and sends data to the AHRS for processing to
determine aircraft magnetic heading. This unit receives power directly from the AHRS and communicates with
it via an RS-485 digital interface.
• GDL 69A – The Data Link Satellite Radio Receiver provides weather data to the G1000 MFD and PFD Inset
Map, as well as digital audio entertainment. The Data Link Receiver communicates with the MFD via a HSDB
connection. A subscription to SiriusXM’s weather data and/or satellite radio service is required to enable the
GDL 69A capability.
• GSA 81, GTA 82, and GSM 85 – The GSA 81 servos are used for automatic control of pitch and roll. The GTA
82 Pitch Trim Adapter works with the existing motor to provide automatic pitch trim. These units interface
with each IAU.
The GSM 85 servo gearboxes are responsible for transferring the output torque of the GSA 81 servo actuators
to the mechanical flight-control surface linkages.