Which flight instruments are typically operated from the pitot-static system?

The airspeed indicator, altimeter, and vertical speed indicator are all crucial flight instruments that rely on the pitot-static system to function.

The airspeed indicator uses the dynamic pressure from the pitot tube, which measures the speed of the aircraft through the air, to provide real-time airspeed data. The altimeter relies on the static pressure from the static ports of the pitot-static system. It measures changes in atmospheric pressure to provide the aircraft's altitude above sea level. The vertical speed indicator also utilizes static pressure; it senses changes in pressure to indicate whether the aircraft is climbing or descending.

These instruments are designed to work together using the same pitot-static system, making this combination essential for effective flight operation and navigation. The other options incorrectly list instruments that do not utilize the pitot-static system in the same way, such as the heading indicator and compass, which rely on magnetic fields.