Aircraft CNS — Boeing roadmap for harmonization

• CNS technologies advance — User requirements become complex — Transition from voice, nav aid, radar to data link, performance-based navigation, automatic dependent surveillance — More advanced aircraft equipage — Integration of aircraft avionics and ground flight data processing systems — Data formats and displays — Flight plan and uplink message creation and loading — Downlink information capability • Different airspaces use different technology and procedures • Avionics vary with aircraft age, cockpit design, aircraft capabilities.