@grumpa wrote:
In plumbing designing we had a process much like calculating the feed and speed rates. We "calculated" sizes based on charts that "should" work based on "tests" utilizing ping pong balls not the real world stuff that flows down hill. We called it "extrapolating" or an educated guess or WAG (Wild A__ Guess). I feel that calculating speed and feeds is much like this since I can't find any actual chart that lists any absolute rates. Speed and feed rates have too many variables which can not be controlled by the author of any rate chart. Because calculating a speed and feed rate seems to only work for that operator along with a YMVM. That said I am think "extrapolating" should be added to the glossary, and included in "calculating speeds and feeds" although I used it for 15 years I never verified if it is a real word. But as in scrabble, "it is a real word because I just used it in a sentence" an argument I never seem to win.
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