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Published on Oct 15, 2011
The Scorpion tail is being raised by a VR Fork Lift at Burning Man. We had the tail within two inches of being all the way raised when we found a hose that was in the wrong spot and was being squished by the tail. As we were lowing the tail the VR Fork Lift was pulling instead of just lifting and one of the hydraulic ram valves was opened at a crucial moment. The two simultaneous actions led to the tail being dynamically loaded, "bounced", which drove the ram through the truss.