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The marine environment is subject to frequent change and the latest publications should always be used, especially when passage planning. Hydrographic officers who produce of nautical publications also provide a system to inform mariners of changes that effect the chart.
The primary advantage of adjusting the cunningham is the speed and ease with which the luff tension can be changed while sailing or racing. By either hauling or easing the line, the tension in the luff can be changed, thereby shifting the point of maximum draft of the sail forward or aft respectively, optimizing sail shape and thus performance ...
A liquid hitting a wall in a container will cause sloshing. The free surface effect is a mechanism which can cause a watercraft to become unstable and capsize. [1]It refers to the tendency of liquids — and of unbound aggregates of small solid objects, like seeds, gravel, or crushed ore, whose behavior approximates that of liquids — to move in response to changes in the attitude of a craft ...
If there is a known set and drift, then the corrections can be applied to the Dead Reckoning position to then get an Estimated Position on a chart. The Course Made Good is the direction in which a ship or vessel has traveled with the effects of current, wind, and helmsmanship.
1. A towed or self-propelled flat-bottomed boat, built mainly for river, canal or coastal transport of heavy goods. 2. Admiral ' s barge: A boat (or aircraft) at the disposal of an admiral (or other high ranking flag officer) for his or her use as transportation between a larger vessel and the shore, or within a harbor. In Royal Navy service ...
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In railroading, slack action is the amount of free movement of one car before it transmits its motion to an adjoining coupled car. This free movement results from the fact that in railroad practice cars are loosely coupled, and the coupling is often combined with a shock-absorbing device, a "draft gear", which, under stress, substantially increases the free movement as the train is started or ...
Slack water can be estimated using a tidal atlas or the tidal diamond information on a nautical chart. [2] The time of slack water, particularly in constricted waters, does not occur at high and low water, [3] and in certain areas, such as Primera Angostura, the ebb may run for up to three hours after the water level has started to rise ...