Remove Descent Remove Instrument Landing System Remove Pitot Tube
article thumbnail

The Six Pack: Basic Flight Instruments

Pilot Institute

The Heading Indicator should not be confused with the Horizontal Situation Indicator (HSI), which is an evolution of the Heading Indicator that includes VHF Omnidirectional Range (VOR) and Instrument Landing System (ILS) indications. This information is used to determine altitude, rate of climb or descent (i.e.,