Classification No. 051207
IMO No. 9344576
Official No. 140136 
Signal Letters 7JAQ 
Flag Japan 
Port of Registry Tokyo 
Ship's Name KAIYU 
Former Name 1 --
 
Registered Owner 1 OFFSHORE OPERATION CO.,LTD.
 
Management Company 1 OFFSHORE OPERATION CO., LTD.
 
Classification Characters, Notations NS*(TUG, WB, EQ C DG)(ID IS)(DPS B)
MNS* 
Descriptive Notes --
Installation Characters CHG, MPP, LSA, CAA, RCF, AFS, BWM 
Installation Descriptive Notes 
Special Description -- 
Other Classification -- 
 
Type of Ship -Purpose(intended service) TUG/WORK BOAT 
- Certificates - SC/SE/SF Other cargo ship
- OPP Other than Oil Tanker
- EE Ship other than ship types defined in regulation 2
- SMC/ISSC Other cargo ship
 
Tonnage Gross (Registered) 1,292 
Tonnage Net (Registered) -- 
Tonnage Gross (Local) 1,292 
Tonnage Net (Local) -- 
Tonnage Gross (TM69) 1,682 
Tonnage Net (TM69) 504 
Deadweight 1,594 
 
Summer Freeboard (mm) 1,010 
Summer Draught (m) 5.012 
Lf (m) 57.000 
Continuous Max. Speed (kt)  sp;
(Sea Trial) :
13.8 
Equipment No. 613 
 
Overall Length (m) 62.361 
Moulded LxBxD (m) 57.000 x 14.000 x 6.000 
Registered LxBxD (m) 54.460 x 14.000 x 6.000 
 
Cargo Capacity  
(m3 / No. of Containers, etc.)
-- 
No. of Passengers 12 
Capacity of Tanks (m3) FO 988.25 FW 409.11 
 
No. & Kind of Engines 2DE : 4 SA 6 CY 
Bore x Stroke (mm) 280.0 x 370.0 
Power (kW) 3,676 (1,838 x 2) 
Revolution (rpm) 750.0 
Manufacturer Niigata Engineering Co., Ltd. Ohta Plant 
 
No. & Kind of Boilers -- 
Pressure (MPa) -- 
Evaporation -- 
Manufacturer -- 
*Evaporation rate: Thermal output (kW) to be filled up in case of TOH.
 
No. & Capacity of Generators (kVA) 4 AC 3,900 
Kind of Propeller Shaft 1B 
Fixed Method of Propeller Flange, Flange 
No. & Shaft Diameter (mm) 2 x 311 
 
Shipbuilder ISB Co., Ltd. 
Hull No. 508 
Date of Keel Lay 12 Jul 2004 
Date of Launch 02 Feb 2005 
Date of Build 24 Mar 2005 
Date of Conversion --