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www.sname.org/sname/mt January 2013 e main deck plating ranges from 16 mm to 22 mm, with thicker plates used in the moon pool area. e 1,300 m2 deck is ush and without wood; this is to avoid extra removal or rectication work when welding down proj- ect equipment. e work-class ROVs are deployed over the ship side via side doors located mid-ships. e doors themselves have been arranged to enable the lower door to remain in place at a height of 1 m during deployment, so that an operator is better protected. e door moves vertically into place on a slider. e upper door is a two-section linked arrangement that is compact and can always be opened when in port. The ROV handling system is mounted overhead, which gives a lot more deck space compared to tra- ditional A-frame type LARS systems and gives an improved working environment in the area around the ROV for the maintenance team. e heave com- pensated umbilical winches are located high up in the Fugro Symphony uses an Active Boost 150t knuckle boom crane in performing its oshore duties.