Allows the installation of the Garmin GRA 55 LRU with the associated transmit and receive antennas mounted on the tailboom.*
The LRU is installed on the Avionics Shelf located on the truss. The Garmin GRA 55 is a digital radar altimeter providing precise above ground altitude info which is displayed on the G1000.
*Requires Garmin GRA55, sold separately.