Dead wraps are wraps of the wire rope around a drum that provide an anchor for the wire rope to the drum. The industry standard has always been three dead wraps, but why is that? Flyhouse went to the shop to test different numbers of wraps on the drum to see how much of the load gets transferred from the wire rope to the termination to get an answer.
Flyhouse Rigging Trainings
When you were a kid, did you ever try to make your own zip line between two trees? The likelihood of succeeding in this endeavor at that age was probably slim. But do you know why it didn't work? Flyhouse went into the shop to test the math behind this and we found out why.