The dynamic positioning system includes two control stations on the navigation console and one on each lateral bridge console, two variable reluctance sensors and two uninterruptible power supplies. The vessel is also equipped with two radars, two satellite navigation systems and automatic identification system. Navigation and communicationsįor safe navigation and smooth communication the vessel is equipped with a magnetic compass, two gyrocompasses, rudder angle indicator system, two depth finders, Doppler speed log ship security alert system, electronic chart display and information system, voyage data recorder system, two wind sensors and a telecommunications system. Driven by an INDAR electric motor, each of these side thrusters has its own hydraulic and control system. CSDs have the ability to dredge nearly all kinds of. In order to achieve smooth manoeuvrability, the vessel is fitted with three side thrusters, two of these are installed forward and one aft. WHAT ARE HYDRAULIC/MECHANICAL DREDGERS CSDs and TSHDs are the most common vessels in this category. Rainbowing is used when the vessel can get close to the discharge location and the previously reclaimed sand body is above or almost above the surface. The vessel can discharge its load in various ways, depending on the project specifications. The engines feature single input/single output reduction gears. Dredging stops when the maximum hopper capacity is reached. The two main engines use heavy fuel oil and each has an overall length of 13,100mm and dry mass of 236t. Offered in 6, 7, 8 and 9-cylinder in-line and 12, 14, 16 and 18-cylinder vee-configuration versions, these engines have a standard rating of 1,200kW per cylinder at 500 and 514rpm respectively. The MAN Diesel 48/60B medium speed engines were chosen because of their robust load acceptance characteristics. ![]() Hotel load for the crew members is covered by a nine-cylinder, in-line MAN Diesel generator set of type 27/38 engine, rated 2,970kW at 720rpm. Dredging underneath and near the RDM ship-lift, Rotterdam. “Suction pipes fitted with electrical dredge pumps dredge sand and rocks to a maximum depth of 142m.” Our trailing suction hopper dredger Albatros operates in Oceania (New Zealand and Australia).
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