BNAAC is a algorithmic(software) used in Yokogawa autopilots for improve fuel saving.
Achieves by reducing unnecessary vessel’s rudder movement via BNAAC
BNAAC is a standard configuration for the latest generation PT-900 autopilot
PT-500 autopilot can be upgraded for BNAAC
E-CO PILOT keeps vessel on course by generating a virtual course
This helps vessel to arrive destination with shorter track distance, thus save fuel
Combining E-Co Pilot with BNAAC, more fuel saving achieved (1%)
Can be use with PT-500 & PT-900 autopilot