Pitot-Static Failures
Block the pitot tube or the static port and watch what the airspeed indicator, altimeter and vertical speed indicator do
Pitot tube
Static port
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Practise the questions
Pitot Statics45 questionsAirspeed Indicators32 questionsVertical Speed Indicators (VSI)32 questionsBarometric Altimeters69 questionsRevise with flashcards
Pitot Statics8 cardsAirspeed Indicators10 cardsVertical Speed Indicators (VSI)3 cardsBarometric Altimeters7 cardsMore Technical General simulators
Airspeeds & MachLifetimeAttitude & TurnLifetimeEngine CyclesLifetimeBrayton CycleLifetimeWhat to try
- Block the static port, then climb and descend. See the altimeter freeze and the VSI drop to zero.
- Block the pitot tube with the drain hole open and watch the airspeed fall to zero.
- Block both the pitot and the drain hole, then climb and descend to see the ASI behave like an altimeter.
- Select the alternate static source and see why the readings change a little.
Exam point
Static blocked: ASI under-reads in a climb, over-reads in a descent, the altimeter freezes and the VSI reads zero. Pitot and drain blocked: ASI over-reads in a climb and under-reads in a descent.
Study aid only. Figures here are simplified and fictional, so always use current DGCA and ICAO documents and the approved manual for real operations.