Stability and Redesign of The Sungkur Fishing Boats With the Towed Method in The Coastal Waters of South Kalimantan

Abstract

This study investigates the static and dynamic stability of the Sungkur fishing boats, proposing a redesign. The study was conducted from February to April 2018. The research used a case study method. Data collection was carried out through observations, measurements, simulations and field experiments. Data analysis was carried out with simulations and numeric methods, using naval architecture formulas. The equipment used includes cameras, a GPS, measuring tools (waterpass, callipers, measuring threads, pendulum) and a computer. The results were interpreted descriptively. The results show that the Sungkur fishing boat with the towed method has good static and dynamic stabilities and has met the International Maritime Organization (IMO) minimum standard values. It also presents a good return energy, returning safely to its original position after destabilisation. The optimal redesign of the Sungkur fishing boat can be achieved by making several prototype changes toward improving the coefficients of fineness of the tested boats.