High Quality Content by WIKIPEDIA articles! The Queen of the Netherlands is a Dutch trailing suction hopper dredging ship constructed in 1998. The vessel has been used in high-profile salvage and dredging operations including the investigation into the Swissair Flight 111 crash and in the Port Phillip Channel Deepening Project. It has been called "the world's largest floating vacuum cleaner". The ship's draghead is 6 metres (20 ft) wide and can dredge between 55 metres (180 ft) and 115 metres (377 ft) deep. The ship has three hopper discharge options. The ship's hopper is among the largest in the world. The ship has equipment to dredge almost any material; the Port Phillip Channel Deepening Project will likely see it remove 23,000,000 cubic metres (810,000,000 cu ft) of clay, silt, sand and limestone from the bottom of Port Philip Bay.

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