Quote:
Originally Posted by nycpassat
Great informative post. I have a question regarding the so called W-3 dial. Why it is called the rail dial?
Thanks
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I can't answer that for you but I can explain the difference when compared to the other white dials.
On the radial dial (incorrectly typed as rail dial), if you look at the second marks, they are much longer than those found on the other dials. Additionally, there is a larger gap between the circular plots and the second marks.