What are the requirements for primary flight display?
FAA regulation describes that a PFD includes at a minimum, an airspeed indicator, turn coordinator, attitude indicator, heading indicator, altimeter, and vertical speed indicator [14 CFR Part 61. The unit combines the information traditionally displayed on several electromechanical instruments onto a single electronic display reducing pilot workload and enhancing Situational Awareness. The layout and information displayed on the PFD varies depending upon manufacturer and installation.Examples of EFDs are the Primary Flight Display (PFD) which combines data from several instruments and is the pilot’s primary source of flight information and the multi-function display (MFD) which allows data to be presented on multiple pages that are convenient to switch between.Here’s a brief overview: Instrument Panel – Primary Flight Display (PFD): Shows critical flight data such as attitude, airspeed, altitude, and heading. Navigation Display (ND): Provides information on the aircraft’s position, flight path, and navigational aids.Pilots making their first acquaintance with glass cockpit avionics can fervently relate: the primary flight display (PFD) and multifunction display (MFD) screens are chock-a-block with information, colors, menus, and sub-menus.