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Rescue Tripod are often used for standby rescue with confined space operations where a symmetrical unit is setup over the top of a hole. One of the legs will often incorporate a hauling mechanism attached to a line which runs up to a pulley at the tripod head and then down the hole to an operator. The head is normally hinged so the feet are hobbled to prevent them spreading. In this configuration everything is stable and there is no requirement for guy lines or anchors.
For confined space rescue, management of the load is critical. The Rescue Tripod needs to be high enough to get a person suspended vertically in a harness up and out of the hole and thus tripods are more than 1.8m high.