What is the function of the pitot-static system?

The pitot-static system plays a crucial role in aviation by measuring key flight parameters, specifically airspeed, altitude, and vertical speed. It operates using two key components: the pitot tube and static ports. The pitot tube measures dynamic pressure, which helps determine the aircraft's airspeed by comparing it to the static pressure obtained from the static ports, which sense the ambient air pressure outside the aircraft.

When the pitot pressure and static pressure are appropriately integrated, they can provide an accurate reading of the aircraft's speed relative to the air, as well as its altitude above sea level and rate of climb or descent. This information is vital for pilots to understand the aircraft's performance during flight, ensuring safe control and navigation.

In contrast, options relating to controlling fuel flow, assisting with navigation, or monitoring engine performance pertain to different systems within the aircraft, such as fuel management systems, navigation instruments, and engine monitoring systems, respectively. These systems serve their specific functions but do not overlap with the critical measurements provided by the pitot-static system.