What does Magnetic Reference Bearing (MRB) reference?

The Magnetic Reference Bearing (MRB) refers to the published magnetic bearing between two waypoints. This is crucial for navigation, as it helps pilots and navigators determine the direction they should follow to travel accurately from one geographical point to another, taking into account the Earth's magnetic field. This magnetic bearing is typically provided in degrees and is vital for ensuring proper routing, especially in areas where visual references may be limited.

Understanding the MRB is essential for effective navigation, as it aligns with the principles of magnetic headings and the use of compasses in aviation and marine contexts. Correctly following the MRB allows for precision in navigation, enabling safe and efficient travel along designated airways or sea routes.