What is the purpose of a pitot-static system?

The pitot-static system is a crucial component of an aircraft's instrumentation, primarily designed to measure and report flight parameters essential for safe and effective navigation. Specifically, it provides vital information regarding airspeed, altitude, and vertical speed, which are key indicators for pilots to assess the aircraft's performance and status in flight.

The airspeed indicator uses data from the pitot tube, which measures dynamic air pressure, while the altimeter and vertical speed indicator rely on static pressure readings from the static ports. Understanding these parameters allows pilots to make informed decisions concerning aircraft control and navigation during flight maneuvers.

Other aspects mentioned in the options—such as navigation capabilities or engine performance—are not the direct functions of the pitot-static system. Similarly, while the system's readings can support autopilot operations, the primary focus and purpose remain centered on delivering critical information regarding airspeed, altitude, and vertical speed to the pilot.