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Originally Posted by claybirdd
nomograph  . I've read how to use it but i think ill try the three minuite rule. |
Are you imperial or metric?
If Imperial 3 min at 500 yds = 5 knots
If metric 3min 15 sec at 500m = 5 knots
So now you've got all three pieces of info it's easy to see how the Nomograph works.
Use the ruler to draw a line connecting 3 min, 500 yards and 5 knots. See how they all line up on the diagonal?
Now if you only know two pieces of the info you just connect them two, but expand your line and the nomograph will calculate the third for you. Simple.