Plain English Meaning
The instruments that tell the pilot where the airplane is going and how it lines up with the route being flown.
Full Definition
The cockpit instruments that show the airplane's position and track relative to a selected course or navigation aid. They typically include the heading indicator, course deviation indicator (CDI), bearing pointers, distance measuring equipment (DME) display, and modern equivalents on a GPS or moving map display.
Context Anchor
Seen in when the pilot is using the panel to follow a course, intercept a route, or line up with an .