Abstract
The international maritime organization (IMO) has worked since 2009 to minimize harmful gas emissions from marine traffic. Due to its worldwide climate effect, IMO has implemented an energy efficiency design index (EEDI) to monitor and quantify CO2 emissions. Due to 1.0-meter wave height, Maluku waters remain quiet. For transporting from distant, outermost, and border places, feeder ships will work better. The three-body vessel (trimaran) has a vast deck surface and can efficiently feed tiny islands. This study analyzes trimaran vessel EEDI and resistance using Froude number Fr = 0.21 speed and transverse distance S/L = 0.2, 0.3, 0.4, and 0.5. Experimental calculations show a large fluctuation in hull distance. The trimaran ships with S/L=0.5 have the least resistance and essentially equal calculation results to independent trimarans. This shows that the trimaran with a 0.5 hull ratio has little hull interference. For trimaran ships, EEDI estimates suggest operating below Fr=0.21, which meets IMO criteria.
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