***Meaning*** :: <u>A</u>cceleration-<u>N</u>orth / <u>D</u>eceleration-<u>S</u>outh ***Explanation*** This is an example of [[Compass Errors]]. In the Northern Hemisphere, as you accelerate, your compass will show a turn to the North. And as you decelerate, your compass will show a turn to the South. When the speed stabilizes, the compass returns to normal. This error is greatest on East or West headings. #acronym