Guide to Ship Navigation Techniques
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- Following points must be considered while berthing the
| Few Practical Examples Depending upon the loading condition and the speed of the ship, the stopping time will be different when these two conditions are changed. Also ships fitted with diesel machinery will have stopping distances approximately 70% of those fitted with Steam Turbine machinery. When the ship’s hull has been due cleaning (dry dock) for longer time, the stopping distance and time will be less as compared to when the ship is just out of dry dock. This is because the hull resistance is more in ships with dry- dock done long ago. The wind direction and sea condition also plays an important role as wind and waves acting from behind the ship will increase the stopping distance and vice versa. It is important fora navigation officer to know the surrounding of the ship and how the ship will react to changes in speed and loading conditions. A Guide to Ship Navigation Techniques // Page 20 CHAPTER 4: Use of Thrusters Thrusters are fitted normally in the fore and aft parts of the ship. These points of location help to create a turning effect and assist the ship in changing the lateral direction during berthing or departing the jetty. The bow thruster is solely introduced in ships to avoid, or in better words, to minimize the use of expensive tugboats as most of the port state authorities around the world have compulsory requirements to use tugboats for safety purpose. // Page 21 “Thrusters are type of propellers, smaller in size, which help in better manoeuvrability of the ships at lower speeds It is extremely important that the navigating officer on bridge understands the significance of assisting machinery such as bow thrusters during the most critical operation performed by ship and its staff – The berthing of the ship. Following points must be considered while berthing the Download 1.01 Mb. Share with your friends:
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