Motions Analysis Investigation of a 12 Meter Catamaran Tourism Boat on Passenger Comfort Criteria Case Study "MV Garuda Ngelayang"

Bangsring Beach is one of the leading tourist destinations in Banyuwangi Regency. which focuses on underwater tourism (Bangsring Underwater) a coral reef-based that can only be accessed by diving and snorkeling. But way to enjoy Underwater tourism, construction 12 m catamaran with bottom glass carried out so tourists who cannot dive snorkel beauty Underwater. To ensure comfort safety passengers, simulation analysis movement existing 12-merter out. This was general design modeled 1:1 LOA m, B 5.6 H 1.85 Vs 10 knots. On ship, an exsisting process at each ship station get line plan for Garufa Ngelayang then 3D modeling based reference from drawing. Ship motion simulations are determine ship's response when hit waves various directions presented RAO (Response Amplitude Operator) graph using CFD method model. Simulations were wave height 1.25 waters fully loaded direction 0 o following sea; Stern Quarter 45 , 315 ; Beam Sea 90 Bow 135 225 Head 180 . With comfortable condition 2.052 s shaky period.