Analysis of Loading Change Effect to the Boat Velocity on a 2.5GT Fishing FRP Boat with a Field Test

Makalah yang akan dipresentasikan pada BICAME2017In order to determine the effect of load change to ship velocity on a 2.5 GT fishing boat, a field test is conducted in the present study. The boat used as the model is a real size boat made from fiber reinforced plastic (FRP) material. The boat is powered by 2 (two) 15 HP direct drive engines each equipped with 3-bladed single screw propeller. Two loading cases are investigated and analyzed which are no load case and with load case. For each case, 4 (for) engine power variations are performed which are 25%, 50%, 75% and 100%. The main parameters measured are draught, engine power percentage, shaft revolution speed and ship velocity. From the study, it is found that even though the propulsion performance increases larger loading case, the ship resistance due to larger draught make the ship velocity reduces