InstrumentsFlight Instruments

Pitot-Static System

The pitot-static system is an integrated system of pressure sensors that provides pitot (dynamic) pressure and static pressure to the primary flight instruments. It drives the Airspeed Indicator (ASI), Altimeter, and Vertical Speed Indicator (VSI).

Key Points

  • •The Airspeed Indicator (ASI) requires both pitot and static pressure to operate.
  • •The Altimeter and Vertical Speed Indicator (VSI) require only static pressure.
  • •A blocked pitot tube causes the ASI to overread in a climb and underread in a descent.

Exam Relevance

Crucial for diagnosing instrument failures; exams frequently test the effects of blocked pitot tubes or static ports on instrument readings.

Related Terms

airspeed indicatoraltimetervertical speed indicator

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Pitot-Static System | The Pilot Exam