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An old and simple slipway for smaller boats, Ystad, Sweden In its simplest form, a slipway is a plain ramp, typically made of concrete, steel, stone or even wood.The height of the tide can limit the usability of a slip: unless the ramp continues well below the low water level it may not be usable at low tide.
Roll-on/Roll-off car carrying ship being boarded by articulated haulers at the Port of Baltimore RoRo ports and inland waterways of the United States. Roll-on/roll-off (RORO or ro-ro) ships are cargo ships designed to carry wheeled cargo, such as cars, motorcycles, trucks, semi-trailer trucks, buses, trailers, and railroad cars, that are driven on and off the ship on their own wheels or using ...
Tourists turn a capstan. The tensioned portion of the rope would fasten the ship to the quay, hoist a foresail, lift a spar into position on the mast or be used to transfer cargo to or from a dock or lighter.
Ship on a transfer system on a shiplift. For large vessels the transfer system consists of a number of trolleys or cradles, supported by high capacity steel wheels. The wheels drive on heavy duty rails. The transport can be one directional, but in order to serve more parking places, two directional systems are used.
The roller ship was an unconventional and unsuccessful ship design of the late nineteenth century, which attempted to propel itself by means of large wheels. Only one such vessel was constructed — Ernest Bazin , named for its inventor — which was found to be impractical.
Transport to and from the docks was mostly by rail. Rather than make a long trip down the San Francisco Peninsula, railcars were barged about the bay, both by the Santa Fe and by the Southern Pacific. Southern Pacific eventually replaced their multiple tug and barge system with a single specialized ferryboat.
Roller furling is a method of furling (i.e. reefing) a yacht's staysail by rolling the sail around a stay. Roller furling is typically used for foresails such as jibs or genoas. [1] A mainsail may also be furled by a similar system, whereby the sail is furled within the mast or around a rotating boom (or around a
In tests this system was able to reduce roll to 3 degrees in the roughest seas. For about 20 years the effectiveness of the stabilizers was unclear (in part due to improved gunfire directors ), and in the US Navy the feature remained experimental (gyrostabilizer on the USS Osborne (DD-295) , active-tank stabilizer on USS Hamilton (DMS-18 ...
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