- 1. True North (Using aero charts) (score: 1)
- Author: AA4NC@aol.com (AA4NC@aol.com)
- Date: Thu Oct 31 07:00:47 1996
- Any aeronautical chart shows the magnetic variation, and is probably more frequently updated than any other government type chart (every 56 days). I wouldn't worry about the changes too much, since t
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