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 RORO

AUTOMOTIVE RO-RO SHIP

    In the 1960s, on the basis of container ship, developing a new type of ships, Ro-Ro ship, in some countries. Because Container transportation is complicated, and need derricks and lifting equipments. Whether we can change the handling methods from vertical loading to horizontal loading? Then Ro-Ro ship emerged basing on the idea.

    Ro-Ro ship looks like car ferry, and lay down a ramp in dock, then specialized loading of vehicles (trailer or forklift), begin loading and unloading operations in each layer by drived Therefore, the Ro-Ro ship was originally called "roll-on and roll-off " ship.

    Ro-Ro's advantage is that it loaded and unloaded containers through the vehicle. In addition, the Ro-Ro is adaptable to transport variety of large goods. Ro-Ro has large-tall body and a lot of deck. Most of Ro-Ro is installed the ball nose in the head of ship, horizontal linear at the center, square tail in the tail, and with a big door or a ramp. There are no hatch in Ro-Ro deck, and no boom and lifting equipment. In the front of Ro-Ro there is living room and store,in the behind there is engine bay, and in the middle there is cargo bay. The loading vehicles comes from the open rear of the main deck to the front of cargo bay. the cargo bay with multi decks be connected by a slope or large lifts. Slope is 30 or 40 meters long, and 4 or 5l meters wide, and is activities or fixed.

    Some Ro-Ro specialized for vehicles transportation, in order to take full advantage of cargo bay, is  installed activity platform in the cargo bay. Usually the platform is flipped or attached to broadside, and when the ship need to transport the vehicles, the platform is moved down to divide the bay into 2 or 3 floors, in order to transport more vehicles. Ramp is the special equipment on Ro-Ro ship, which is set up between the Ro-Ro ship and the terminal, and the vehicles can transfer from here. Most ramp is located in the stern, and also in the bow or the side parts. Three forms of ramp is the  direct ramp, oblique ramp and spin ramp.

    For transport safety, the Ro-Ro has special anti-sway water storage and other anti-sway devices to reduce the ship rocking. For easy operation, Ro-Ro has lateral thrusters in the head, and can be rotated in any direction, for ship convolution.

    Ro-Ro General is powered by diesel, and sails at a speed of 20 knots, the fast one can be over 25 knots. Ro-Ro has developed very rapidly in decade, by now there are two thousand Ro-Ro ships allover the word. Ro-Ro is developed into higher speed, higher load and better characteristics. In the further,the Ro-Ro can be more widely used to load the oil, ore and other goods.

Time:2010/8/17  Number of visits:1865 

 

 
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