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All Journal TRITON : Jurnal Manajemen Sumberdaya Perairan Journal of Marine-Earth Science and Technology
Gaspersz, Fella
Unknown Affiliation
Earth & Planetary Sciences Energy Environmental Science

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THE APPLICATION OF COMBINATION OF SOLID BOXES AND AIR BAGS TO SUPPORT THE UNSINKABLE SMALL PASSENGER BOAT R Hetharia, Wolter; R de Fretes, Eliza; Gaspersz, Fella; Louhenapessy, Jandri
Journal of Marine-Earth Science and Technology Vol. 1 No. 1 (2020): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1050.024 KB) | DOI: 10.12962/j27745449.v1i1.154

Abstract

Small fast passenger boats serve to carry passengers at certain routes particularly in short distance between the islands. The passengers preferred those transport modes due to its short travel time. In fact, there are many accidents occur during boat operation which end up with the loss of life and materials at sea. An intensive study was executed by the authors with the purpose to obtain an unsinkable boat. The boat data of existing boats were collected and be used for re-designing process. During the design process, some solid boxes, expanded bags were provided inside boat to reduce the incoming water. Meanwhile, the bags were fitted outside the boat (side floater) to provide additional buoyancy and righting moment for stability performance. A boat model was developed and tested to confirm the design results. In addition, a full-scale boat was developed and equipped with solid boxes, air bags and side floaters. The theoretical computation and extrapolated results from model proved that the required volume for inside solid boxes and air bags are 1.213 m3 and 0.511 m3 respectively. Meanwhile, the required volume of outside air bags is 0.357 m3. It was found that the total boat weight, passengers and incoming water of 4.259 tons are balanced by weight displacement of 5.025 tons. There was reserve buoyancy of 0.766 tons that supports the boat to be float and side floaters to prevent the boat from capsize. The result of sea trial showed that with all loading conditions the boat was still afloat (unsinkable).
INOVASI KOTAK PANORAMA UNTUK MENDUKUNG EKOWISATA INCLUSIF SUMBERDAYA PESISIR DI PANTAI NAMANALU Siahainenia, Reico H; Wattimury, Latuhorte; Gaspersz, Fella; Chary, Matthew
TRITON: Jurnal Manajemen Sumberdaya Perairan Vol 21 No 2 (2025): TRITON: Jurnal Manajemen Sumberdaya Perairan
Publisher : Departement of Aquatic Resources Management, Fisheries and Marine Science Faculty, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/TRITONvol21issue2page87-98

Abstract

Surface wave ripple disturbance is a major obstacle in enjoying the potential of underwater tourism in coastal ecotourism areas. This study aims to develop a visual aid that can neutralize the wave ripple, in order to improve the quality of the tourist experience at Namanalu Beach. This development research adopts the Design Thinking methodology conducted in July-September 2025. Data at the Empathize, Define, Ideate and Test stages were obtained through interviews and discussions and joint applications with users at the Namanalu Beach tourist location, analyzed using Thematic Analysis; the Prototype stage was carried out at the Hydrostatics and Towing Tank Laboratory, Faculty of Engineering, Pattimura University. The study produced two prototypes of panoramic boxes equipped with an innovative mechanism in the form of a ballast system to regulate the buoyancy of the tool, making it easier for users to immerse the bottom of the box below the water surface and retrieval (lifting) it back. Based on the results of functional tests in the field, both panoramic box prototypes were proven to operate optimally. This tool successfully eliminates visual distortion due to wave ripples, so that underwater views can be observed clearly and proportionally. It was concluded that this panorama box not only addresses the identified issues but also has the potential to be an effective conservation education tool, especially for older tourists, children, and non-swimmers. Implementation of this tool is recommended to support sustainable ecotourism activities. ABSTRAK Gangguan riak gelombang permukaan menjadi kendala utama dalam menikmati potensi wisata bawah air di kawasan ekowisata pesisir. Penelitian ini bertujuan untuk mengembangkan sebuah alat bantu visual yang dapat menetralisasi riak gelombang tersebut, guna meningkatkan kualitas pengalaman wisatawan di Pantai Namanalu. Penelitian pengembangan ini mengadopsi metodologi Design Thinking yang dilakukan pada Juli-September 2025. Data pada tahap Empathize, Define, Ideate dan Test diperoleh melalui wawancara dan diskusi serta aplikasi bersama dengan pengguna di lokasi wisata Pantai Namanalu, dianalisis menggunakan Analisis Tematik; tahap Prototype dilaksanakan pada Laboratorium Hidrostatis dan Towing Tank Fakultas Teknik, Universitas Pattimura. Penelitian menghasilkan dua purwarupa kotak panorama yang dilengkapi mekanisme inovatif berupa sistem ballast untuk mengatur daya apung alat, memudahkan pengguna dalam proses pencelupan (immersio) dasar kotak ke bawah permukaan air dan pengangkatannya (retrieval) kembali. Berdasarkan hasil uji fungsi di lapangan, kedua prototipe kotak panorama terbukti beroperasi secara maksimal. Alat ini berhasil menghilangkan distorsi visual akibat riak gelombang, sehingga pemandangan bawah air dapat diamati dengan jelas dan proporsional. Disimpulkan bahwa kotak panorama ini tidak hanya menjawab permasalahan yang diidentifikasi tetapi juga berpotensi menjadi media edukasi konservasi yang efektif teristimewa kepada wisatawan orang tua, anak-anak dan non perenang. Implementasi alat ini direkomendasikan untuk mendukung kegiatan ekowisata berkelanjutan. Kata Kunci: Kotak panorama, sistem ballast, ekowisata, pesisir, Pantai Namanalu
Co-Authors Chary, Matthew Louhenapessy, Jandri R de Fretes, Eliza R Hetharia, Wolter Siahainenia, Reico H Wattimury, Latuhorte