Multiple choice

Which of the following instruments takes data from static port and pitot tube at the same time?

  1. Altimeter

  2. ASI

  3. VSI

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Airspeed Indicator (ASI) is the only primary flight instrument that requires both pitot tube pressure (total/ram air pressure) and static port pressure simultaneously. The ASI's mechanism measures the difference between total pressure from the pitot tube and static pressure from the static ports to calculate and display indicated airspeed. The alteter and VSI use only static pressure.

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