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Passage through Magellan Straits (Points for consideration) • An alternative route between E and W coast of S. America.• There are extreme difficulties and dangers when both E and W bound.• The dangers are those associated with narrow channels and harbour accentuated by the prevalence of bad weather and generally foul and rocky character of…
WOP is the point on the initial course at which the wheel is put over to initiate the turning of the vessel. The distance between the WOP and the point at which the ship commences its turn is denoted by „F‟ and depends on the size of the vessel, its loading condition, speed, trim and…
Rudder Cycling works on the principle of diverting the fore and aft thrust sideways but not really taking the vessel sideways. Alternately, the similar manoeuvre is done on other side. Rudder Cycling is found extremely effective in reducing the vessel’s speed in a given period and takes the vessel through minimum distance in original direction….
In general, during ice ship navigation, an ice pilot and ice breakers are provided to help commercial vessel operations by safely leading the vessels through the ice but there are a few other measures to be followed by the vessel’s crew during ice ship navigation. The ship should avoid any alternate available route at all…
Source of GMDSS equipment power from following :- GeneratorEmergency generatoremergency battery The GMDSS battery is usually in the range of 200 Ah which is required to give 24V. Testing and Checking of GMDSS Batteries Required by SOLAS GMDSS batteries constitute an important tool which provides power supply for GMDSS equipment operation in case of emergency….
A cold front normally occurs when a huge mass of cold and chilly air meets a mass of warm air, and the chilly air starts advancing on the warm air. As soon as the cold front passes, the weather temperature starts becoming cooler and can drop by 4 degrees Celsius or even more. It can…
Many of us are quite scared of solving the tide problems especially calculations involving Secondary Ports Lets first handle calculation of tide at Standard Ports 1.Find height of tide at Bombay at 1200 hrs on 15th Aug 1999 Bombay 15th August 1999 TIDE TIME HEIGHT HW 0212 4.0 LW 0720 1.0 HW 1438 4.4 LW…
Star finder ? How to use it? Star finder is used to choose suitable stars for celestial observations and for identifying stars. Criteria for choosing the stars should be as follows For identifying stars just get the azimuth of star and calculate LHA aries and latitude is known so use suitable template and put the…
LOP Separated by 15° LOP Separated by 90° Azimuths Separated by 120° Azimuths Separated by 60°
The Global Maritime Distress and Safety System (GMDSS) is an international system relating to all vessels over 300 gross tonnes and all passenger vessels engaged on international voyages, irrespective of tonnage. It provides comprehensive communications for distress, urgency and safety operations in the terrestrial and satellite services. It specifies methods to be used to enable…