Blue line
Post by iconPost by weekiwachee | 2019-03-12 | 14:23:57

What the meaning/use of the blue line? I think I understand the green and red ones but I am at a loss for the blue. Thanks a lot.

commenticon 2 Comments
Post by iconPost by toxcct | 2019-03-12 | 14:27:12
the blue line is the rhumb line...
Post by iconPost by weekiwachee | 2019-03-12 | 14:42:46
Thank you.
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