What is the use of load line?
The load line, or Plimsoll mark, is positioned amidships on both sides of a vessel. Its purpose is to indicate the legal limit to which a ship may be loaded for specific ocean areas and seasons of the year.
What is load line rules?
The Load line regulations have a long history of over 140 years. This mark is also known as plimsoll mark and ships were allowed to load only till this line reached the waterline, thus preventing overloading of the ship.
How load line is calculated?
A vessel’s load line length is measured on a particular waterline, determined by its molded hull depth (the vertical dimension from the top of the keel to the underside of the freeboard deck at the vessel’s side).
What is the purpose of load line Convention?
In the 1966 Load Lines convention, adopted by IMO, provisions are made for determining the freeboard of ships by subdivision and damage stability calculations. The regulations take into account the potential hazards present in different zones and different seasons.
What is load line in ship?
“Load line is a special marking positioned amidships which depicts the draft of the vessel and the maximum permitted limit in distinct types of waters to which the ship can be loaded.”
What means load line?
: the line on a ship indicating the depth to which it sinks in the water when properly loaded — see plimsoll mark illustration.
What is meant by load line?
A load line is used in graphical analysis of nonlinear electronic circuits, representing the constraint other parts of the circuit place on a non-linear device, like a diode or transistor. The load line represents the relationship between current and voltage in the linear part of the circuit.
What are the principles of load line Convention?
The four principles of the International Convention on Load Lines, 1966 as modified by the Protocol of 1988 relating thereto, (hereafter: LL66/88) can be summarised as: Adequate structural strength. Protection of safe means of access for the crew. Watertight integrity of ship’s hull below freeboard deck.
How does a ship load line work?
Load Lines – Load lines are horizontal lines extending forward and aft from a vertical line placed at a distance of 540mm from the centre of the disc. They measure 230mm by 23mm. The upper surfaces of the load lines indicate the maximum depths to which the ships may be submerged in different seasons and circumstances.
Why do ships have multiple load lines?
Purpose : They are used when, for a period of time the vessel has to operate temporarily with a greater freeboard in accordance with the International Load-Line regulations. – A number of ports have special requirements for maximum draft and deadweight for ship’s calling at them.
What is waterline of a ship?
The waterline is the line where the hull of a ship meets the surface of the water. The waterline can also refer to any line on a ship’s hull that is parallel to the water’s surface when the ship is afloat in a normal position.
