What does the Pitot Static System measure?

The Pitot Static System measures ambient air pressure, which is crucial for determining various flight parameters. It specifically uses two sensors: the Pitot tube measures dynamic pressure (which is related to the aircraft's speed through the air), while the static port measures static pressure (which corresponds to the ambient air pressure at the aircraft's altitude).

This system is essential for instruments like the altimeter, which indicates altitude by converting static pressure readings into altitude above sea level, and the airspeed indicator, which uses the difference between the static and dynamic pressures to calculate airspeed. Understanding the functioning of the Pitot Static System is foundational for pilots, as it provides critical information necessary for safe and effective aircraft operation.

In contrast, the other options do not accurately describe what the Pitot Static System is designed to measure. For example, ground speed is determined by GPS or other systems, weather conditions are assessed through different meteorological instruments, and control surface positions are typically monitored using separate flight control sensors.