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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan International Journal of Marine Engineering Innovation and Research
Utina, Muhammad Ridwan
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Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Impact of Wingsail Integration on Seakeeping Performance and Stability of a Fishing Vessel Zalayetha, Hegel Desta; Utina, Muhammad Ridwan; Purnamasari, Dian; Suwarni, Endah; Sulistyawati, Wiwin
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 1 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i1

Abstract

Reducing fuel consumption in fishing vessels has become an important issue in improving the efficiency and sustainability of maritime operations, particularly for small and medium-scale fisheries. One potential approach is the integration of wind-assisted propulsion systems such as wingsails. However, the addition of structures above the deck may influence vessel stability and motion responses in waves. This study evaluates the effect of wingsail integration on the seakeeping performance and intact stability of a fishing vessel operating in Benoa, Bali. The reference vessel has principal dimensions of LOA 33.50 m, LPP 29.65 m, breadth 7.95 m, depth 4.06 m, draft 2.90 m, and displacement 415.6 tons. Analysis is conducted using Maxsurf Stability for intact stability assessment and Maxsurf Motion for seakeeping analysis. The seakeeping evaluation considers wave headings of 90°, 135°, and 180° with vessel speeds of 6, 8, and 10 knots, while sea conditions are derived from Beaufort scale conversion. Vessel motions are assessed using RMS, MSI, and MII according to STANAG 4154, while stability is evaluated under departure, fishing ground, and arrival load cases based on IMO Intact Stability Criteria.
Experimental Study on the Hydrodynamic Resistance of a 265 GT Fishing Vessel with Wind-Assisted Propulsion Fatihah, Anandita; Rina, Rina; Sari, Dian Purnama; Utina, Muhammad Ridwan; Sulistyawati, Wiwin
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 23, No 1 (2026): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v23i1.82101

Abstract

This study experimentally evaluates wind-assisted propulsion (WASP) to reduce the resistance of a 265 GT fishing vessel using model-scale towing tank test conducted at the PRTH-BRIN towing tank facility, with towing forces measured using calibrated resistance dynamometers following ITTC recommended procedures. Bare-hull resistance was measured at seven speeds over Froude numbers Fr  0.12 – 0.30, while tests with the wing sail installed were conducted at three speeds in the upper range (Fr  0.18 – 0.30) under steady beam wind conditions corresponding to a full-scale true wind speed of 20 knots. Towing-force measurements were converted into total resistance and total resistance coefficients. The wing sail effect was quantified using the wind-assisted percentage (WA%), defined as the relative reduction in resistance compared with the bare-hull condition at the same speed. A Type B uncertainty analysis following ITTC Recommendations was performed for the bare-hull measurements. The results show that, for the tested wind-assisted condition, the wing sail configuration produced lower resistance than the bare-hull at the same speed. The absolute resistance reduction increases with Froude number, reaching about 1.06 N at the highest speed, whereas WA% decreased from about 4.53% to 2.25% indicating a larger relative benefit at lower end of the tested speed range. The expanded relative uncertainty of bare-hull resistance is below 4% for all operating points. Overall, the experiments indicate a measurable wind-assisted contribution from the wing sail and provide a practical framework for assessing WASP performance at model scale using WA% as an indicator.
Co-Authors Dian Purnamasari Endah Suwarni Fatihah, Anandita Rina Rina Sulistyawati, Wiwin Zalayetha, Hegel Desta