Tin Mining Vessel is a fairly new ship technology in Indonesia, several Tin Mining Vessel design developments have been carried out to improve performance while operating as well as safety factors for ships and crew. The design of the Tin Mining Vessel in this study is in the form of a barge with an initial hole design dimension of a 3.6 x 3.6 m which functions to insert the drill pole and suction pipe into the seabed. Tin Mining Vessel has a dimension of length (Lpp) = 72 m, width (B) = 18 m, deck height (H) = 5 m, Draught (T) = 2.5 m, and Cremona construction and drill pole and suction pipe as high as 60 m. Measurement of ship motion through seakeeping testing is used to analyze the dimensions of the hole where the tin drilling pipe is on the hull. Wave test parameters use irregular waves with significant wave heights Hs = 2.5 m, 2 m, and 1.25 m, with each of peak wave period Tp = 8.5 sec in the direction of the wave relative to the direction of the ship is 0 deg and 45 deg. The test results show that the movement of the ship when the wave condition Hs = 2.5 m shows that there is a collision between the walls of the hole box and the drilling pipe so that the initial design dimensions of the hole needs to be enlarged to 4.8 x 4.8 m by considering the ivory distance of the hull construction.

Keywords : Tin Mining Barge Vessel, Seakeeping Test, Hydrodynamics.