What is permissible length in naval architecture?
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What is permissible length in naval architecture?
The length between bulkheads on a ship in order to ensure that it will remain afloat if one, or more, compartments are flooded. The permissible length is some fraction of the floodable length. The fraction is called the factor of subdivision.
What is floodable length in ship?
Floodable length means the length of a shell to shell segment of the vessel that, when flooded, will sink and trim the vessel until the margin line is tangent to the waterline.
What is floodable length in passenger ship?
Floodable length is the amount the ship can be flooded without the risk of the ship sinking. The floodable length is the maximum length of the ship that can be flooded without submerging the margin line, also known as the deck line.
What is GRT and NRT in ship?
Gross register tonnage (GRT) and net register tonnage (NRT) have been replaced by gross tonnage (GT) and net tonnage (NT) which express the size and volume of a ship as a simple dimensionless figure. Port fees and charges for canal passages, locks and pilots are calculated according to the GT or NT.
What is GT and DWT?
Professionals across the shipping industry may be familiar with the terms like “gross tonnage”, “deadweight tonnage”, “net tonnage” and many more terms we regularly meet in shipping-related sources, but those are not always easy to distinguish, especially when being new in the industry.
What is floodable length curve?
Floodable length curve represents the maximum floodable length of the ship along the ship’s length. This curve is obtained by vertically plotting the floodable length along the ship’s length.
How is GRT calculated?
Gross tonnage is calculated from the formula GT = K1V, where V is the volume of a ship’s enclosed spaces in cubic metres and K1 is a constant calculated by K1 = 0.2 + 0.02 log10 V.
What is floodable length?
What is bilged compartment?
Now let an empty compartment amidships be holed below the waterline to such an extent that the water may flow freely into and out of the compartment. A vessel holed in this way is said to be `bilged’. The buoyancy provided by the bilged compartment is lost.
