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Old 06-29-2019, 12:33 PM   #5
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Join Date: Aug 2008
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Originally Posted by Superesse View Post
In your guide in your signature, you state the formula for "head on speed calculation" as:
((Mast (in meters) x 10) / time in minutes) x 0.03 = Target speed

In this new document in this thread it is:
H / C (x 4 if at 6x mag) x 100 / T x 0.0323 - OS

I definitely agree that the second one is correct (though 0.0324 is a better value and I would remove the 100 and change to 3.24 instead).
The first formula seems incorrect though.
Yeah the second one is definitely the correct one, need to go back and fix the first. Thanks for pointing that out!
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