STABILITY AND TOTAL RESISTANCE ANALYSIS OF CATAMARAN FISHING BOAT FOR JAVA NORTH SEA AREA WITH HULLFORM MODEL AND FISHING GEAR VARIATION

Substitution of cantrang fishing gear with other gears might give bad impact to the stability of the ship. But, catamaran boat type can improve the intended stability characteristics. The study was conducted using six variations of the catamaran hullform, namely symmetrical hull, asymmetrical straight inside hull, asymmetrical straight outside hull, which is each model has round bilge and hard chine variation. The study aims to find the lowest total resistance value. The hullform with lowest total resistance will be re-varied to 3(three) different types of fishing gear, namely cantrang, purse seine, and bottom longline for stability analysis. The result shows that the round bilge symmetrical hull type has smallest resistance with value of Rt is 8.81 kN at 8 knots. Based on IMO MSC.36(63), the result of stability analysis shows all variations of fishing gear meet the established standard.