What does the pitot-static system provide to the airspeed indicator and altimeter?

What does the pitot-static system provide to the airspeed indicator and altimeter?

• A. Airspeed information from the pitot tube and altitude/vertical velocity from the static port
• B. Temperature information from the static port
• C. Engine RPM data
• D. Fuel pressure data

Answer: (A)

The pitot-static system uses two pressure signals to feed the cockpit instruments: total (ram) pressure from the pitot tube and ambient static pressure from the static port. The airspeed indicator derives airspeed from the dynamic pressure, which is the difference between total and static pressure, so it receives its data from the pitot tube. The altimeter uses the static pressure to determine altitude, and the rate at which that static pressure changes over time is used to show vertical speed. So this system provides airspeed information to the airspeed indicator and altitude/vertical velocity information from the static port.

The pitot-static system uses two pressure signals to feed the cockpit instruments: total (ram) pressure from the pitot tube and ambient static pressure from the static port. The airspeed indicator derives airspeed from the dynamic pressure, which is the difference between total and static pressure, so it receives its data from the pitot tube. The altimeter uses the static pressure to determine altitude, and the rate at which that static pressure changes over time is used to show vertical speed. So this system provides airspeed information to the airspeed indicator and altitude/vertical velocity information from the static port.