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Freeboard and Trim Measurement: a Case Study of Landing Craft Tank Conversion to Ship Power Plan

Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan · Vol. ume (2024) · pp. 1–6

DOI
10.62012/zl.v5i1.27886
ISSN
2721-5717, 2747-2124
Published
2024-03-28
Publisher
Departemen Teknik Kelautan Universitas Hasanuddin
Language
en
License
creativecommons.org/licenses/by/4.0

Abstract

English

In this research, the ship power plan which is the result of a conversion from a landing craft tank is designed to meet the electricity needs in areas affected by a disaster or electricity crisis. So far, the government has chartered a similar ship from Turkey which is used to meet electricity needs in Indonesian areas which have been affected by the disaster and electricity crisis. This ship is modified to carry an electric generator which can later be sent to areas that need it. Two main focuses are the goal of this research, the first is to find the value of the freeboard and the second is the trim of the ship after the redesign. To achieve this goal, in this study a numerical calculation method was used to calculate the freeboard and trim values according to applicable standards. The results of the analysis show that the freeboard value is still safe, with the actual freeboard value being greater than the required freeboard (0.8 m > 0.44 m). For ship trim, the bow trim condition is obtained with a smaller LCG-LCB difference than the 0.05% LPP value (0.912 < 0.923). By looking at the results of these measurements, the condition of the ship's freeboard and trim is still in a fairly good category even though it has been converted from a landing craft tank to a ship power plant. This study can provide a reference for ship design before converting the actual ship so that it can carry out trim and freeboard tests to prevent build failures.

Bahasa Indonesia

In this research, the ship power plan which is the result of a conversion from a landing craft tank is designed to meet the electricity needs in areas affected by a disaster or electricity crisis. So far, the government has chartered a similar ship from Turkey which is used to meet electricity needs in Indonesian areas which have been affected by the disaster and electricity crisis. This ship is modified to carry an electric generator which can later be sent to areas that need it. Two main focuses are the goal of this research, the first is to find the value of the freeboard and the second is the trim of the ship after the redesign. To achieve this goal, in this study a numerical calculation method was used to calculate the freeboard and trim values according to applicable standards. The results of the analysis show that the freeboard value is still safe, with the actual freeboard value being greater than the required freeboard (0.8 m > 0.44 m). For ship trim, the bow trim condition is obtained with a smaller LCG-LCB difference than the 0.05% LPP value (0.912 < 0.923). By looking at the results of these measurements, the condition of the ship's freeboard and trim is still in a fairly good category even though it has been converted from a landing craft tank to a ship power plant. This study can provide a reference for ship design before converting the actual ship so that it can carry out trim and freeboard tests to prevent build failures.

Keywords

Collaboration network of the authors

40 authors · 138 co-authorship links · 7 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • State University of Semarang
  • Medan Area University
  • Tun Hussein Onn University of Malaysia
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
AlamsyahAffiliation unknown8
Rodlian Jamal IkhwaniAffiliation unknown8
SuardiAffiliation unknown7
Chris Jeremy Verian SitorusAffiliation unknown5
Taufik HidayatMedan Area University3
Harlian KustiwansaAffiliation unknown3
Irvan SetiawanAffiliation unknown3
Muhammad Cahyo NugrohoAffiliation unknown2
Samsu Dlukha NurcholikAffiliation unknown2
Daffa Ahmad NaufalAffiliation unknown2
Irentya Anugra BaratauAffiliation unknown2
HariyonoAffiliation unknown2
Budi PrasetiyoState University of Semarang1
Much Aziz MuslimTun Hussein Onn University of Malaysia1
Jumanto JumantoState University of Semarang1
Rofik RofikState University of Semarang1
Endang SugihartiState University of Semarang1
Riza ArifudinState University of Semarang1
Hasiah HasiahAffiliation unknown1
Herdianty RamlanAffiliation unknown1
Indah Ainun MutiaraAffiliation unknown1
Syahban NurAffiliation unknown1
Syarifuddin SyarifuddinAffiliation unknown1
Fitri Yanty MuchtarAffiliation unknown1
Arif Nur IskandarAffiliation unknown1
Abrari Noor HasmiAffiliation unknown1
Destyariani Liana PutriAffiliation unknown1
Alan Dicky Swans SaragihAffiliation unknown1
Anggoronadhi DianiswaraAffiliation unknown1
Jusma WahidahAffiliation unknown1
Syerly KlaraAffiliation unknown1
Faisal MahmuddinAffiliation unknown1
Anshar Yaumil AkhirAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/zonalaut/oai, first harvested 2 Nov 2026, last seen 2 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Freeboard and Trim Measurement: a Case Study of Landing Craft Tank Conversion to Ship Power Plan</dc:title>
	<dc:title xml:lang="id">Freeboard and Trim Measurement: a Case Study of Landing Craft Tank Conversion to Ship Power Plan</dc:title>
	<dc:creator xml:lang="en">Suardi, Suardi</dc:creator>
	<dc:creator xml:lang="en">Setiawan, Wira</dc:creator>
	<dc:creator xml:lang="en">Nurcholiq, Samsu Dlukha</dc:creator>
	<dc:creator xml:lang="en">Alamsyah, Alamsyah</dc:creator>
	<dc:creator xml:lang="en">Arifuddin, Andi Mursid Nugraha</dc:creator>
	<dc:creator xml:lang="en">Wulandari, Amalia Ika</dc:creator>
	<dc:creator xml:lang="en">Pawara, Muhammad Uswah</dc:creator>
	<dc:creator xml:lang="id">Suardi, Suardi</dc:creator>
	<dc:creator xml:lang="id">Setiawan, Wira</dc:creator>
	<dc:creator xml:lang="id">Nurcholiq, Samsu Dlukha</dc:creator>
	<dc:creator xml:lang="id">Alamsyah, Alamsyah</dc:creator>
	<dc:creator xml:lang="id">Arifuddin, Andi Mursid Nugraha</dc:creator>
	<dc:creator xml:lang="id">Wulandari, Amalia Ika</dc:creator>
	<dc:creator xml:lang="id">Pawara, Muhammad Uswah</dc:creator>
	<dc:subject xml:lang="en">Ship Conversion, Ship Power Paln, Freeboard, Trim.</dc:subject>
	<dc:subject xml:lang="id">Ship Conversion, Ship Power Paln, Freeboard, Trim.</dc:subject>
	<dc:description xml:lang="en">In this research, the ship power plan which is the result of a conversion from a landing craft tank is designed to meet the electricity needs in areas affected by a disaster or electricity crisis. So far, the government has chartered a similar ship from Turkey which is used to meet electricity needs in Indonesian areas which have been affected by the disaster and electricity crisis. This ship is modified to carry an electric generator which can later be sent to areas that need it. Two main focuses are the goal of this research, the first is to find the value of the freeboard and the second is the trim of the ship after the redesign. To achieve this goal, in this study a numerical calculation method was used to calculate the freeboard and trim values according to applicable standards. The results of the analysis show that the freeboard value is still safe, with the actual freeboard value being greater than the required freeboard (0.8 m &amp;gt; 0.44 m). For ship trim, the bow trim condition is obtained with a smaller LCG-LCB difference than the 0.05% LPP value (0.912 &amp;lt; 0.923). By looking at the results of these measurements, the condition of the ship's freeboard and trim is still in a fairly good category even though it has been converted from a landing craft tank to a ship power plant. This study can provide a reference for ship design before converting the actual ship so that it can carry out trim and freeboard tests to prevent build failures.</dc:description>
	<dc:description xml:lang="id">In this research, the ship power plan which is the result of a conversion from a landing craft tank is designed to meet the electricity needs in areas affected by a disaster or electricity crisis. So far, the government has chartered a similar ship from Turkey which is used to meet electricity needs in Indonesian areas which have been affected by the disaster and electricity crisis. This ship is modified to carry an electric generator which can later be sent to areas that need it. Two main focuses are the goal of this research, the first is to find the value of the freeboard and the second is the trim of the ship after the redesign. To achieve this goal, in this study a numerical calculation method was used to calculate the freeboard and trim values according to applicable standards. The results of the analysis show that the freeboard value is still safe, with the actual freeboard value being greater than the required freeboard (0.8 m &amp;gt; 0.44 m). For ship trim, the bow trim condition is obtained with a smaller LCG-LCB difference than the 0.05% LPP value (0.912 &amp;lt; 0.923). By looking at the results of these measurements, the condition of the ship's freeboard and trim is still in a fairly good category even though it has been converted from a landing craft tank to a ship power plant. This study can provide a reference for ship design before converting the actual ship so that it can carry out trim and freeboard tests to prevent build failures.</dc:description>
	<dc:publisher xml:lang="en">Departemen Teknik Kelautan Universitas Hasanuddin</dc:publisher>
	<dc:date>2024-03-28</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:identifier>https://journal.unhas.ac.id/index.php/zonalaut/article/view/27886</dc:identifier>
	<dc:identifier>10.62012/zl.v5i1.27886</dc:identifier>
	<dc:source xml:lang="en">Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan; Volume 5, Number 1, March 2024 Edition; 1-6</dc:source>
	<dc:source xml:lang="id">Zona Laut : Jurnal Inovasi Sains Dan Teknologi  Kelautan; Volume 5, Number 1, March 2024 Edition; 1-6</dc:source>
	<dc:source>2721-5717</dc:source>
	<dc:source>2747-2124</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/zonalaut/article/view/27886/11349</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2024 Suardi Suardi, Wira Setiawan, Samsu Dlukha Nurcholiq, Alamsyah Alamsyah, Andi Mursid Nugraha Arifuddin, Amalia Ika Wulandari, Muhammad Uswah Pawara</dc:rights>
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