Hi, everybody, I really hope you can help me out with this one. I work for an outdoor facility, and we were just replacing our zip cable. Due to major safty issues, we need to get it at the exact height it used to be at, and that's kind of tough. After a few trial-error sessions, we managed to get it within inches, but now it's down to details. I know that pulling about a foot (~30cm) on the end of the cable changes the height of it for about 2,5 feet (70-80cm). Since we're talking galvanized aircraft cable here, you understand why I want a formula before we fit it for two more inches in height... The cable is about 200 yards (~200m) long I'd say. I can get exact (or close to exact) measurements, probably the weight of the cable, tension and such things, but I don't have them now.