Maneuvering character of hull form renovated tuna purse seiner

선형개조 선망선의 조종성능

  • Received : 2014.10.29
  • Accepted : 2015.02.10
  • Published : 2015.02.28


In an attempt to improve the maneuvering character of hull form renovated tuna purse seiner. A renovation was carried out on the 3 tuna purse seiner fishing vessel. To grasp the progress of maneuvering and resistance on ship B (730 ton class), new bulbous bow was only attached. The ship A (740 ton class) and C (600 ton class) were modified for new bulbous bow, enlarged slipway and rudder. And then the zigzag and the turning test were carried out. According to the turning test, the advance and the tactical diameter were improved very much for the modified ship. The sea trial was carried out for the original and modified ship A. It is showed that the results of sea trial corresponded with that of the tank test on the whole. In the result of the zigzag test on ship B, the turning ability was improved very much, but the yaw checking ability was deteriorated in just some degree. In the result of the zigzag test on ship C, the turning ability and yaw checking ability were remarkably improved. Ship C was greatly improved among the three ships for the maneuvering character of modified hull form.


Ship Maneuverability;Tuna purse seiner;Zigzag test;Turning ability;Yaw checking ability


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  2. Improvement of resistance performance of the 4.99 ton class fishing boat vol.53, pp.4, 2017,
  3. A Study on the Improvement of Hull-Form Design for Propulsion Type Change of Net Boat Mounted on Tuna Purse Seiner vol.24, pp.6, 2018,