The WHOI Dynacon winch is fitted for DSL operations and has a hydraulic level wind on it that relies on three sensors for correct operation. The sensor that measures cable angle failed, causing the winch to fail to operate correctly. It was replaced and jury-rigged before DSL120 operations could be continued. This image shows the storage drum and level wind of the winch, displaying a larger view of the cable angle sensor. Image courtesy of UCSB, Univ. S. Carolina, NOAA, WHOI.

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