Abstract
It is necessary for navigator to understand sufficiently maneuverabilities based on experiences and the data which were gotten from several tests of the ship when he maneuver his vessel. By the way most navigators used to rely on his experiences or feelings only maneuvering ship. But he is faced with an unexpected difficulties when he encounters situations he had not experienced. So navigator must get both experiences and data based on experimental results. In this paper author performs several tests such as turning test, Zig-zag test and spiral test to provide informations of maneuverabilities for navigators. In this paper, the author performed “Z” test in order to study the maneuverability of M/S Sae Dong Baek, training ship of the Chonnam National University. The obtained results are as follows: As the “Z” test the turning index(K)’s results of Sae Dong Baek are 0.246, 0.173 and 0.299, 0.134 respectively when the rudder indicator changes to port 10°, 20° and starboard 10°, 20°. Also as the “Z” test the following index(T)’s results are 15.859, 20.37 and 29.937, 21.6 respectively when the rudder indicator changes to port 10°, 20° and starboard 10°, 20°.
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