Electronic Flight Instruments A320
ELECTRONIC FLIGHT INSTRUMENTS Electronic flight instrument system integrate many individual instruments into a single presentation called a primary flight display (PFD). Flight instrument presentations on a PFD differ from convetional instrumentation not only in format, but sometimes in location as well. For example, the attitude indicator on the PFD is often larger than conventional round-dial presentations of an artificial horizon. Airspeed and altitude indications are presented on vertical tape displays that appear on the left and right sides of the primary flight display. The vertical speed indicator is depicted using conventional analog presentation. Turn coordination is shown using a segmented triangle near the top of the attitude indicator. The rate-of-turn indicator appears as a curved line display at the lower half of the PFD. FLIGHT MANAGEMENT SYSTEMS (FMS) A flight managent system (FMS) automates the tasks of managing the onboard navigation equipment. An FMS