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The Six Pack: Basic Flight Instruments

Pilot Institute

The six primary instruments (the six-pack) are the Attitude Indicator (AI), Heading Indicator (HI), Turn Coordinator, Airspeed Indicator, Altimeter, and the Vertical Speed Indicator (VSI). Pitot-Static Instruments The instruments that use the pitot-static system are the airspeed indicator, altimeter, and Vertical Speed Indicator (VSI).