Which instruments are part of the pitot-static system?

The pitot-static system is essential for providing critical flight information to the pilot. The instruments that are part of this system include the airspeed indicator, altimeter, and vertical speed indicator.

The airspeed indicator measures the speed of the aircraft through the air, utilizing the dynamic pressure from the pitot tube, which is part of the pitot-static system. The altimeter operates using static pressure to determine the aircraft's altitude above sea level, adjusting for changes in air pressure with altitude. The vertical speed indicator, also using static pressure changes, indicates the rate of climb or descent by sensing the difference in static pressure over time.

In contrast, other options included instruments that do not belong to the pitot-static system. For instance, the magnetometer and compass are part of the magnetic heading system and are not affected by air pressure, while the tachometer measures engine RPM, an indication of engine performance rather than flight dynamics. These distinctions reinforce the understanding of which instruments function together within the pitot-static system and their specific roles in flight.