What is the main function of the pitot-static system in an aircraft?

The main function of the pitot-static system in an aircraft is to measure airspeed, altitude, and vertical speed. This system uses pressures to provide critical flight information to the pilot. The pitot tube measures dynamic pressure, which is used to calculate the aircraft's airspeed, while the static ports measure ambient atmospheric pressure to determine altitude. Additionally, this system can incorporate devices like the vertical speed indicator to provide the rate of climb or descent. This instrumentation is essential for the safe operation of the aircraft, as it enables pilots to understand their flight performance and make necessary adjustments. Understanding these measurements is crucial for effective navigation and maintaining safe flight conditions.