I keep hearing references to a "501" pack and it makes me wonder if that refers to a size of pack, or just a model number.
I did some calculations on my pack sizes, converting them to metric, and found it was no help. My smallest pack is 65560 cubic centimeters and my largest pack is 163900 cubic centimeters.
PG
I did some calculations on my pack sizes, converting them to metric, and found it was no help. My smallest pack is 65560 cubic centimeters and my largest pack is 163900 cubic centimeters.
PG