Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability

Recovery maneuvers are highly important for rescuing a person overboard at sea. This is the prime reason why the International Maritime Organization (IMO) has published the International Aeronautical and Maritime Search and Rescue (IAMSAR) Manual III, which aims to assist vessels and aircrafts in th...

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Main Authors: Inchul Kim, Chongju Chae, Soyeong Lee
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/8/6/445
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author Inchul Kim
Chongju Chae
Soyeong Lee
author_facet Inchul Kim
Chongju Chae
Soyeong Lee
author_sort Inchul Kim
collection DOAJ
description Recovery maneuvers are highly important for rescuing a person overboard at sea. This is the prime reason why the International Maritime Organization (IMO) has published the International Aeronautical and Maritime Search and Rescue (IAMSAR) Manual III, which aims to assist vessels and aircrafts in the performance of a search, rescue, or on-scene co-ordinated efforts with aspects of search and rescue (SAR) which pertain to their own emergencies. The IAMSAR Manual III includes the Williamson turn, the Anderson turn and the Scharnov turn. Furthermore, the Lorén turn has been newly included in the 2019 edition of the Manual. Although several studies have pointed out that the Williamson turn needs to be applied in a modified form for proper application, in terms of returning ability to the original track line, it has not yet been modified in the Manual. Therefore, the purpose of this study is to analyze the serviceability of the four standard recovery maneuvers through a series of ship-handling simulations with representative types of ships. Our main results are as follows: firstly, the Anderson turn is the fastest recovery method, regardless of engine power and rudder efficiency; secondly, the actual paths of the Williamson turn are not consistent with the expected ones; and, finally, no correlations were found between the returning ability of the Williamson turn and any ship configuration or maneuvering ability factors, or their combinations. Thus, based on the experimental results, this paper proposes revising the descriptions of the standard recovery maneuvers and IMO regulations on ship maneuverability, as well as posting the actual tracks of the Williamson turn on the bridge in order to improve its serviceability.
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spelling doaj.art-2093cc95b565468d8957b0fda252af642023-11-20T04:17:46ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-06-018644510.3390/jmse8060445Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of ServiceabilityInchul Kim0Chongju Chae1Soyeong Lee2Division of Navigation and Information Systems, Mokpo National Maritime University, Mokpo 58628, KoreaOffshore Training Team, Korea Institute of Maritime and Fisheries Technology, Busan 49111, KoreaDivision of Training Ships, Mokpo National Maritime University, Mokpo 58628, KoreaRecovery maneuvers are highly important for rescuing a person overboard at sea. This is the prime reason why the International Maritime Organization (IMO) has published the International Aeronautical and Maritime Search and Rescue (IAMSAR) Manual III, which aims to assist vessels and aircrafts in the performance of a search, rescue, or on-scene co-ordinated efforts with aspects of search and rescue (SAR) which pertain to their own emergencies. The IAMSAR Manual III includes the Williamson turn, the Anderson turn and the Scharnov turn. Furthermore, the Lorén turn has been newly included in the 2019 edition of the Manual. Although several studies have pointed out that the Williamson turn needs to be applied in a modified form for proper application, in terms of returning ability to the original track line, it has not yet been modified in the Manual. Therefore, the purpose of this study is to analyze the serviceability of the four standard recovery maneuvers through a series of ship-handling simulations with representative types of ships. Our main results are as follows: firstly, the Anderson turn is the fastest recovery method, regardless of engine power and rudder efficiency; secondly, the actual paths of the Williamson turn are not consistent with the expected ones; and, finally, no correlations were found between the returning ability of the Williamson turn and any ship configuration or maneuvering ability factors, or their combinations. Thus, based on the experimental results, this paper proposes revising the descriptions of the standard recovery maneuvers and IMO regulations on ship maneuverability, as well as posting the actual tracks of the Williamson turn on the bridge in order to improve its serviceability.https://www.mdpi.com/2077-1312/8/6/445IAMSAR Manual IIIstandard maneuversWilliamson turnAnderson turnfull mission ship-handling simulationship maneuverability
spellingShingle Inchul Kim
Chongju Chae
Soyeong Lee
Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability
Journal of Marine Science and Engineering
IAMSAR Manual III
standard maneuvers
Williamson turn
Anderson turn
full mission ship-handling simulation
ship maneuverability
title Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability
title_full Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability
title_fullStr Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability
title_full_unstemmed Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability
title_short Simulation Study of the IAMSAR Standard Recovery Maneuvers for the Improvement of Serviceability
title_sort simulation study of the iamsar standard recovery maneuvers for the improvement of serviceability
topic IAMSAR Manual III
standard maneuvers
Williamson turn
Anderson turn
full mission ship-handling simulation
ship maneuverability
url https://www.mdpi.com/2077-1312/8/6/445
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AT chongjuchae simulationstudyoftheiamsarstandardrecoverymaneuversfortheimprovementofserviceability
AT soyeonglee simulationstudyoftheiamsarstandardrecoverymaneuversfortheimprovementofserviceability