AFMS N°D01 FOR GARMIN GFC700 AUTOPILOT INSTALLATION AND
RNAV/RNP NAVIGATION ELIGIBILITY
AUTOPILOT DESCRIPTION
GFC 700 is an integrated autopilot since it uses several information provided by
other units embodied in the G1000 avionics suite in order to compute the maneu-
vers to be performed by the aeroplane and actuate them. The below table lists the
functions which are required in order to have the GFC 700 operational and the
G1000 LRUs responsible for providing it:
Display of the AFCS mode annuncia-
tions and flight director command
bars.
(PFD NORMAL)
(MFD REVER-
SIONARY)
Attitude/Heading information
Navigational database Parameters
GPS/WAAS, VOR, and ILS naviga-
tional data
Mode logic, flight director computa-
tions, and servo management
Autopilot computations and monitor-
ing
Aircraft control
surface Actuation
In control of the roll axis, the autopilot senses turn rate, as well as closure rate to
the selected course, along with the non-rate quantities of heading error, course er-
ror and course deviation indication.
In control of the pitch axis, the autopilot senses vertical speed, acceleration, and
closure rate to the selected glideslope, along with the non-rate quantities of alti-
tude and glideslope deviation indication.
The ―autotrim‖ function senses when the aircraft needs to be trimmed about the
pitch axis, and responds by driving the trim servo in the proper direction to pro-
vide trim.
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