No. 381 Ryosei Maru

Int'l gross tonnage 2877 tons Year built 2014 Dredge manufacturer SKK Corporation Dredge max. hosting load 160 ton Dredge jib length 32 m Dredge working radius 17.3-24.7 m (Jib angle：70°-55°) NO.1 Grab 33 m3(P.L)/23 m3(W.L),100 t No.2 Grab 40 m3(P.L)/(W.L),88 t (Sealed wide type) NO.3 Grab 9 m3(P.L)/(W.L),130 t (For hard soil) Spud φ1,500 × 40 m （76　t） × 2 pcs Anchor JIS F 3301 Stockless 6 t × 4 pcs Anchor chain JIS F 3303 Φ56 × 25 m Thruster Nakashima propeller SPJ-57N × 2 pcs Main generator Daihatsu 8DC-32e （2,800 KW） Aux. generator Yanmar 6HAL2-WHT （265 KW）