![]() The magnetic compass is the primary indicator of heading information in an aircraft, and knowing your heading is essential in order to find your route. This article will look at all aspects of how the Heading Indicator works and why it is used, and also how to fly in an aircraft that does not have one, in case you should ever have to do so. It is certainly not impossible, but it is much harder. So I have found out from experience how much more difficult it is to be forced to use the magnetic compass alone, as, of course, early pilots used to do. I have also flown aircraft that do not have one, as is the case if you fly some old aircraft or a number of homebuilt types. I can confirm that they are extremely useful. However, for several reasons, magnetic compasses are not that accurate when flying a plane the Heading Indicator is used both for additional accuracy and to make things very much easier for the pilot.ĭuring my many years of piloting a large number of aircraft of all types, I have used these little flight instruments frequently. The Heading Indicator basically complements the magnetic compass, which is actually the primary indicator of direction, as you might expect. This is because, along with the altimeter and airspeed indicator, it is one of the most important instruments needed to ensure an accurate and safe flight. The Heading Indicator is situated on the instrument panel and is directly in front of the pilot in most planes. ![]() This flight instrument is used in almost all airplanes to show heading information. The Heading Indicator or HI is also known as the Direction Indicator or DI, or sometimes the Directional Gyro.
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