The Prediction of Hydrodynamic Performance of Pinisi Ship

Pinisi ships are famous for their toughness across the ocean. The uniqueness of is shipbuilding methods that different without design engineering. conditions present pinisi tourist ships, problems have arisen recently, namely number ship accidents. main cause bad water and technical factors. To improve safety comfort, aspect needs to be studied hydrodynamic characteristics. subject uses three samples produced by Tanah Beru traditional shipyard. performance analyzed hydrostatics, stability, resistance motion, with several according respective standard analyzed. shape hull a rounded small coefficient block, largest change in hydrostatic parameters occurs at draft 0 meters 0.25 meters. speed 0-7 knots relatively same every increase, but speeds > 7 there change. RAO analysis roll motion wave frequency 1.5 – 1.75 rad/s heading 90 degrees 45 3.65-3.80 rad/s. Heave 4.25 4.4 direction smaller than degrees. Evaluation stability arm, variation KG critical, failed 5/4H dan 1H B/T 3.43 B/ T 5.00, while initial metacentric height parameter, all still passed criteria.