Chapter 1: Using the Display
Course Deviation indicator
The course deviation indicator (CDI) assists you to accurately maintain your course to
your destination. A 'rolling road' in three dimensional perspective provides a real-time
display of your vessel's course and any deviation as Cross Track Error (XTE)
It will give such information as any corrections required to your course and data about
the target waypoint, its bearing, distance and the time to go (TTG).
3nm
Using the CDI you can:
• View information to help you steer your vessel accurately along a course.
• Monitor your course.
North-Up
Relative Motion
1-7
Local