Sad, that I still have no idea how to use one of these. I found this video quite helpful in describing how to get a rough fix on location. I am sure this is becoming a lost art with all of the available technology today. However, I think of it as an essential skill in navigation.
Quite an informative video from YachtingMonthly’s YouTube feed
[youtube http://www.youtube.com/watch?v=PK6v-833dkc&w=560&h=315]
This may have motivated me to sign up for classes.