WHOI Long Core System Installed on the RV Knorr

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WHOI Long Core System Installed on the RV Knorr Powered By Docstoc
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Description: A common example is that a crane on an offshore drilling vessel might accidentally hook a supply boat while unloading and be torn off the drilling vessel with severe consequences to the operator, crane and vessel.1 The differences between the oceanography CFR requirements and the industrial standards were born of researchers' tendency to build and operate "one-off," unusual systems for limited applications to very specific, often short-term projects, while industrial lift gear presumably operates in repetitive operations within the well-known conditions of large industries by professionally trained operators. The major modifications to the Knorr for the Long Core gear included replacement of the main deck above the thruster room with a new strengthened "superdeck," enclosure of the existing trawl ramp with a high-load overboarding sheave in a transom slot, addition of a monolithic foundation aft of the transom to support a new core-handling grapple, addition of a seven-meter slot with covers in the side of the main deck hanger to accommodate the horizontal 46-meter piston corer on deck and conversion of a storage compartment to a hydraulic power unit machinery space to power the deck gear.
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