This is a navigational instrument that combines the aircraft heading with the VOR or ILS course superimposed over the top of the instrument. This increases situation awareness for the pilot.
This is a completely free image HSI with Warning Flags that you can download, post, and use for any purpose.
Tags: aircraft navigation
Image License: CC0 No Rights Reserved
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission, and at no cost. This image is completely free.