G1000 is an integrated flight instrument system manufactured by Garmin. The Columbia install consists of one PFD, one MFD, an audio panel and a panel-mounted keyboard for data input.

Cockpit layout


G1000 cockpit layout
G1000 cockpit layout

Block diagram


G1000_system_block_diagram.JPG

Primary Flight Display


Also known as PFD, the Primary Flight Display shows the basic instruments (altimeter, etc.), CDI and a few other things like the mini-map. The underlying device (ie. the display itself) is known in Garmin's nomenclature as a GDU. The unit itself is actually intechangeable between the PFD and MFD positions and functionality is enabled/disabled based on the wiring diagram. In other words, the G1000 software itself auto-detects which GDU becomes PFD based on how the GDU is wired up.

Columbia install uses GDU-1040 for the PFD and the primary/only difference is the lack of autopilot control buttons on the left side of the display.