FSX Cessna Citation X C-GCUL. Eaglesoft Cessna Citation X 2.0 livery for FSX. This livery is based on a real world Citation X with registration number C-GCUL. Requires the payware Eaglesoft Development Group Citation X to use these textures. This livery was totally hand painted, no photo layers were used, and saved in DDS 32 bit format. By Johnny Rosario.