![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/C172_heading_indicator.jpg/640px-C172_heading_indicator.jpg&w=640&q=50)
Heading indicator
Type of aircraft flight instrument / From Wikipedia, the free encyclopedia
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The heading indicator (HI), also known as a directional gyro[1] (DG) or direction indicator (DI),[2][3][4][5] is a flight instrument used in an aircraft to inform the pilot of the aircraft's heading.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/C172_heading_indicator.jpg/320px-C172_heading_indicator.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/DG_interior.png/640px-DG_interior.png)