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The metacentric height (GM) is a measurement of the initial static stability of a floating body. [1] It is calculated as the distance between the centre of gravity of a ship and its metacentre . A larger metacentric height implies greater initial stability against overturning.
Angle of loll is the state of a ship that is unstable when upright (i.e. has a negative metacentric height) and therefore takes on an angle of heel to either port or starboard. When a vessel has negative metacentric height (GM) i.e. , is in unstable equilibrium, any external force applied to the vessel will cause it to start heeling.
Generally these Coast Guard rules concern a minimum metacentric height or a minimum righting moment. Because different countries may have different requirements for the minimum metacentric height, most ships are now fitted with stability computers that calculate this distance on the fly based on the cargo or crew loading.
English: This drawing demonstrates the relative positions of the center of Gravity, center of buoyancy, and metacenter (see Metacentric height and more generally Naval architecture). This drawing is based upon, and is an SVG replacement for File:MetacentricHeight.png by Georgewilliamherbert
The BRI models the human body shape as an ellipse (an oval), with the intent to relate body girth with height to determine body roundness. A simple tape measure suffices to obtain waist circumference and height. [1] [2] Waist circumference and height can be in any unit of length, as long as they both use the same one. [1] [3
At a basic level, it is typically calculated in metres using the formula: [1] UKC = Charted Depth − Draft-/+ Height of Tide. Ship masters and deck officers can obtain the depth of water from Electronic navigational charts. [5] More dynamic or advanced calculations include safety margins for manoeuvring effects and squat. [7]
Metacentric may refer to: Metacentric height , the distance between the center of gravity of a ship and its metacenter Metacentric centromere , the position of a centromere on a chromatid
Metacentric height is within the scope of the WikiProject Sailing, a collaborative effort to improve Wikipedia's coverage of Sailing. If you would like to participate , you can visit the project page , where you can join the project and see a list of open tasks .