Originally Posted By: 2-piper
Hi all;
I did a bit of further checking. My close Estimated method of taking the median diameter of the old bore size & new bore size times Pi times thickness of metal removed "Per Side" times length of bore thus enlarged is actually not a reasonable estimate. It is in fact Spot on & 100% accurate for the Cu Inches of metal removed. Sort of surprised Rocketman didn't call me on this one, guess he was just being his normal kind self.

Quite often there is more than one way to figure something. For instance when I figure the area of a circle I normally use πDē/4 rather than the normally quoted πRē. Answer is the same both ways as R = D/2 then Rē = Dē/4.


smile My reports think I'm from the stone age calculating on my trusty HP-41CX. (formerly C then CV)...as for area of circle formula I prefer to cut to the chase and go with pi r2 the only issues I have is dealing with inches as I work in decimal feet. 276' diameter tanks are a lot of inches eek

Dodging lions and wasting time.....