What is a primary flight display (PFD)?

A primary flight display (PFD) is critical in modern aircraft cockpits as it consolidates essential flight instrument data into a single screen. This typically includes information such as altitude, airspeed, attitude, heading, and other vital flight parameters, allowing pilots to efficiently monitor their flight status at a glance. The design of a PFD enhances situational awareness by integrating these data points into a format that is easy to interpret, thereby facilitating better decision-making and response during flight operation.

While backup instruments, automated navigation systems, and warning systems for mechanical failures play important roles in aviation safety and operations, they do not serve the primary purpose of a PFD. The PFD's main function is to present essential flight data in a comprehensive manner, making it a crucial tool for pilots during all phases of flight.