Southeast Aerospace will be closed December 24th - January 2nd for the Holidays.
Regular business hours will resume on Monday, January 5th. AOG Services are available.

Avionics FAQ

When the GNC-255A/B has received data from an external device, such as a GPS receiver or DME sensor through the serial port, speed, time, and distance data will be available. If you are not connected to an external sensor, you will not see this display.