What critical information is shown on the primary flight display (PFD)?

The primary flight display (PFD) serves as a crucial instrument for pilots, offering a comprehensive view of essential flight information necessary for safe aircraft operation. The PFD typically shows critical data, including altitude, airspeed, heading, and attitude.

Altitude is vital as it indicates the aircraft's vertical position related to sea level, essential for avoiding terrain and maintaining safe flight levels. Airspeed is equally crucial, as it informs pilots about the aircraft's speed through the air, which is vital for control and performance. The heading provides information about the aircraft's direction relative to magnetic north, helping with navigation and course corrections. Finally, attitude displays the aircraft's orientation relative to the horizon, a fundamental aspect of maintaining controlled flight.

Together, this information is fundamental for pilots to make informed decisions during all phases of flight, ensuring adherence to safety protocols and operational efficiency.