What is the function of the pitot-static system?

The pitot-static system plays a crucial role in the functioning of an aircraft’s instrumentation by measuring airspeed, altitude, and vertical speed. This system consists of several components, including the pitot tube, which captures dynamic pressure to measure airspeed, and static ports, which sense ambient air pressure to determine altitude and vertical speed.

When air moves into the pitot tube, it creates a pressure that reflects the aircraft's speed. The information from the static ports, which are located on the aircraft fuselage, provides the necessary data to calculate altitude based on the variation in atmospheric pressure relative to a standard reference.

This capability is essential for pilots, as it allows them to maintain awareness of their flight performance and make informed decisions based on accurate airspeed readings, which is crucial for safe navigation and maneuvering. Additionally, the altitude information ensures compliance with air traffic control requirements and aids in safe operations during ascent and descent.

In contrast, the other options do not pertain to what the pitot-static system specifically measures. Controlling engine performance, determining fuel levels, and managing flight navigation involve different systems and equipment that serve distinct purposes within the aircraft's operational framework.