1.1oz or 1.9oz

• 04-18-2008, 00:35
gunn parker
1.1oz or 1.9oz
Hi
I have looked but cannot find the formula to work out the weight of my ripstop.
I know we gave talked about it before but a search turns up empty.
Does anyone know it or can point me to it.
Thanks
Gunn
• 04-18-2008, 06:38
hangnout
I am sure the math whiz's will chime in with the correct math but I will attempt to answer. I measure the material by the inch to keep it as accurate as possible when trying to find the weight per square yard. One square yard is 1296".

(Width" X Length")/1296"=total Square Yards
Total Weight/Total Square Yards= Weight per square yard
• 04-18-2008, 06:47
gunn parker
Hi thanks for that, I'll write it down someplace this time :)
You wont believe this though, I had a section of rip stop and it was full roll width at 62" and 21" long. then I weighed it at 1.9 oz and I thought, oh it is 1.9 oz rip stop but then I was measuring a rectangle. it was not until I used your math that I find my rectangle is in fact a square yard, and so it is 1.9oz. :)
weird.
Gunn
• 04-18-2008, 07:16
square yard
while I would be one some might think would carry around the exact number of square inches per square yard in my head, exactly the opposite is true. What I remember is how to derive the stuff the I need.

To compute the square yardage of a piece, given width and length,
on a calculator I would
1. enter width (in inches)
2. hit * key
3. enter length (in inches)
4. hit / (divides) key
5. enter 36
6. hit / key
7. enter 36
8. hit = key

Since I know there are geeks out there who use postfix notation (a.k.a. reverse Polish) and will chime in if I don't (:o ) if I had such a calculator sequence would be

width
length
36
36
*
/
*

It's kinda like German, you wait until the end of the sentence before popping in the verbs...

Grizz
• 04-19-2008, 02:31
gunn parker
Hi
So my ripstop works out at 1.9oz, would anyone care to guess at the weight the completed hammock would hold?
Thanks
• 04-21-2008, 11:09
Brandon
what's the prize if I get it right?