Analysis of Propulsion System Modernization Strategy via the KRI X Repowering Program to Enhance Warship Operational Readiness

Authors

  • Nur Rokhmat Universitas Hang Tuah
  • Sudirman Universitas Hang Tuah
  • Ali Azhar Universitas Hang Tuah

DOI:

https://doi.org/10.33751/jhss.v10i03.237

Abstract

The operational readiness of warships is closely linked to the reliability and performance of their propulsion systems, whereas aging naval platforms commonly experience degradation that reduces operational effectiveness and increases maintenance requirements. This study aims to formulate a propulsion system modernization strategy through a repowering program for KRI X. A descriptive qualitative design was applied using primary data from in-depth interviews with seven purposively selected informants and observations, supported by secondary data from document analysis. Interview data were coded and analyzed using NVivo 12 Plus, while internal and external factors were evaluated through SWOT analysis. The results show significant degradation in the main engine, gas turbine, gearbox, and controllable pitch propeller (CPP), which adversely affects speed, endurance, maneuverability, propulsion reliability, and operational readiness. The SWOT analysis positions the program in the Weaknesses–Opportunities (WO) quadrant, indicating a Turn-Around Strategy that uses modernization opportunities to overcome internal weaknesses. Repowering is therefore an appropriate strategic and cost-effective approach to improve propulsion reliability and long-term operational readiness, provided that it is supported by logistics, maintenance, personnel competence, and organizational policy.

 

References

G. Till, Seapower: A Guide for the Twenty-First Century, 5th ed. London, United Kingdom: Routledge, 2024.

A. F. Molland, The Maritime Engineering Reference Book, 2nd ed. Oxford, United Kingdom: Butterworth-Heinemann, 2017.

F. Baldi, F. Ahlgren, F. Melino, C. Gabrielii, and K. Andersson, “Optimal load allocation of complex ship power plants,” Energy Conversion and Management, vol. 124, pp. 344–356, 2016.

M. Stopford, Maritime Economics, 3rd ed. London, United Kingdom: Routledge, 2009.

United Nations Conference on Trade and Development (UNCTAD), Review of Maritime Transport 2024. Geneva, Switzerland: United Nations Publications, 2024.

K. Wróbel, J. Montewka, and P. Kujala, “Safety and reliability of ship systems,” Reliability Engineering & System Safety, vol. 212, p. 107646, 2021.

M. Yuarizky, A. Prasetyo, and B. Nugroho, “Analysis of the effect of repowering on ship engine performance,” Jurnal Teknik Perkapalan, vol. 9, no. 1, pp. 45–52, 2021.

A. Prayitno, S. Hadi, and M. Kurniawan, “Warship maintenance strategy to enhance operational readiness,” Jurnal Teknologi Maritim, vol. 15, no. 2, pp. 85–94, 2021.

D. Feng, H. Yang, and L. Wang, “Assessment of naval vessel modernization strategies under operational uncertainty,” Ocean Engineering, vol. 266, p. 112749, 2023.

J. Mou, C. Ligteringen, and H. Xu, “Study on ship propulsion efficiency and energy-saving technologies,” Journal of Marine Science and Engineering, vol. 8, no. 6, pp. 1–18, 2020.

H. Kim, J. Lee, and D. Shin, “A framework for predictive maintenance of naval propulsion systems using reliability analysis,” Journal of Marine Science and Engineering, vol. 10, no. 3, pp. 1–15, 2022.

B. Liu, Y. Chen, and X. Zhou, “Integrated propulsion system optimization for naval ship operational efficiency,” Journal of Marine Engineering and Technology, vol. 23, no. 1, pp. 15–29, 2024.

F. Rangkuti, SWOT Analysis: Techniques for Dissecting Business Cases. Jakarta, Indonesia: Gramedia Pustaka Utama, 2018.

J. W. Creswell and J. D. Creswell, Research Design: Qualitative, Quantitative, and Mixed Methods Approaches, 5th ed. Thousand Oaks, CA, USA: Sage Publications, 2018.

M. Q. Patton, Qualitative Research and Evaluation Methods, 4th ed. Thousand Oaks, CA, USA: Sage Publications, 2015.

B. Liu, Y. Chen, and H. Wang, “Reliability-centered maintenance for naval propulsion systems based on operational readiness assessment,” Ocean Engineering, vol. 287, p. 115823, 2024.

H. Kim and D. Shin, “Predictive maintenance framework for marine propulsion systems using reliability and condition monitoring,” Journal of Marine Science and Engineering, vol. 11, no. 7, pp. 1–19, 2023.

International Maritime Organization (IMO), Fourth IMO Greenhouse Gas Study 2020. London, United Kingdom: International Maritime Organization, 2021.

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Published

23-07-2026

How to Cite

Rokhmat, N., Sudirman, & Azhar, A. . (2026). Analysis of Propulsion System Modernization Strategy via the KRI X Repowering Program to Enhance Warship Operational Readiness. JHSS (JOURNAL OF HUMANITIES AND SOCIAL STUDIES), 10(03), 903–910. https://doi.org/10.33751/jhss.v10i03.237