Once again, as others have mentioned, K factors (not just their nomograms)
were introduced in the "pre computer" days. We really have much better
tools now, and should use them.
And I also used a slide rule which now sits in my desk awaiting a battery
failure in my calculator. However, I have retired my K factor nomogram
completely. I don't even use it for preliminary checking anymore.
Peter Higgins, SE
What method do you use for K-factor determination? Something from Yura?