Trolling liner was a dominance used by fishermans in Sinjai Regency was made by traditional without planning before, so stability and seakeeping ability about sea condition was unknown. The research aimed to analyze the rolling motion of trolling liner in regular condition of beam seas. The research was a case study of trolling liner used by the fisherman in Sinjai.Geometry measurement vessel formwas done to get a model of trolling liner and then make a redesign as a comparedand thenmake a simulation using program Maxsurf v8.i.the result showed that the sample have a good stability. Higher rollingwas 18,168 onhigh wave -0,1971 m and lowerrollingwas -18,168 on high wave 0,1971 m,while theredesignshowed higherrollingwas 14,102 on high wave -0,1970 m and lowerrollingwas -14,102 on high wave 0.1968 m.
Nonlinear Rolling Motion of Ship in Random Beam Seas
