What is the purpose of an aircraft's pitot-static system?

The pitot-static system is a crucial component in an aircraft used for measuring several key flight parameters. Its primary purpose is to provide accurate indications of airspeed, altitude, and vertical speed.

The system consists of the pitot tube, which measures dynamic air pressure, and a series of static ports that measure static air pressure. By utilizing the difference between these pressures, the aircraft instrumentation can calculate the indicated airspeed. The static pressure measurement is essential for determining altitude and vertical speed, as it reflects the atmospheric pressure surrounding the aircraft.

Thus, the function of the pitot-static system is integral to flying operations, allowing the pilot to understand the aircraft's performance and altitude relative to the surrounding air. This information is vital for safe navigation and control during flight.