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Posted: Sat Dec 20, 2008 2:51 pm
by Gippeto
gm = grams
Posted: Sat Dec 20, 2008 2:53 pm
by john bunsenburner
so wait, the whole thing is imperial and the mass is in grams?
Posted: Sat Dec 20, 2008 4:09 pm
by Hotwired
No, the whole thing uses imperial and/or metric units for length, temperature, mass, volume and speed.
It depends on how you like it.
File -> Configuration -> Click Teh Boxes
Posted: Sat Dec 20, 2008 4:26 pm
by john bunsenburner
Thank you guys!
Posted: Sat Dec 20, 2008 4:46 pm
by Gippeto
My installation is in imperial units (inches, psig, oz, etc.) and yet the projectile mass IS in grams, or perhaps...not.
gm
an incorrect symbol for the gram (see below). The correct symbol is g. In engineering, "gm" is sometimes used to distinguish "gram mass" from "gram force" (gf). This practice is not recommended.
Taken from here;
http://www.unc.edu/~rowlett/units/dictG.html
Whether it's mass in grams, or gram mass, I suspect that the result is invariably, the same.
In the end, it doesn't matter, the program WORKS.

Posted: Sat Dec 20, 2008 10:13 pm
by D_Hall
I use "gm" for grams because I found that some folks would get confused by just a "g".... They were gun folks and to them, "g" meant "grains" not "grams." Yes, I know that "grains" is normally abreviated "gr" but they were still confused.... So I went with "gm" and until today I'd not heard another word of confusion about it.