• Title/Summary/Keyword: Sideway Maneuvering

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A Study on the Safety Handling Method of KCG's Water Jet Propulsion Ship (해양경찰 Water Jet 추진함정의 안전 조함법 연구)

  • Yun, Chong-Gum;Pak, Chae-Hong;Park, Deuk-Jin;Jung, Cho-Yeong
    • Journal of Navigation and Port Research
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    • v.41 no.6
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    • pp.373-380
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    • 2017
  • Operational errors caused by human factors, which is the major cause of marine accidents, include lack of knowledge, misunderstanding knowledge, and inadequate procedures. Recently, the type of propulsion mounted on KCG cutters has been diversified. In particular, the water jet propulsion unit, which was mainly installed in small boats, have been gradually expanded to medium and large size Coast Guard cutters, reaching 50% of the total. Axes types are divided into 2 to 4, and the bucket types are divided into Double Reverse Bucket(DRB) and Single Reverse Bucket(SRB); in these, the backward and steering control methods are completely different. Diversification of these operating systems can increase factors causing human error by the ships' operators. However, there is a lack of research on the maneuvering methods, considering the inherent active characteristics of each type of water jet. In this paper, we analyze the sideway method suitable for the condition of Coast Guard Exclusive wharf without assistance, based on the astern performance of each type. Then, a ship handling simulator was used for the experiment; they compared and verified through interviews of captains.