Fig. 6.1 IHI CRP-DUCK
Fig. 6.2 Propulsion system of UNICON
The main particulars are as follows.3)
LOA X B X D： abt. 101 m x 14.9m x 10.3m
Gross tonnage： 1,498 tons
Service speed： 35 knots
Main engine： Medium speed diesel engine
8,840 PS x 1,275 rpm x 4 sets
Water-jet pump： Single stage, axial flow type x 4 sets
Reduction gear： Planetary gear type reduction gear x 4 sets
Two sets of CPP, 360。-turning type thrusters manufactured by KHI were employed as the propulsion system of the fire-fighting ship "HIRYU"4) of Maritime Safety Agency built by NKK (delivered in December, 1997). The system was mounted on the ship owned by the Maritime Safety Agency for the first time, and demonstrates its capacity of the transverse movement and the steering performance at the site, facilitates the operation for arriving at and leaving the terminal, enables the fine-controlled operation including the ship positioning while spraying the water in the fire-fighting activities, and remarkably improves the operational performance. The main particulars are as follows.
LOA x B x D： 35.0m x 12.2m x 5.5m
Gross tonnage： 280 tons
Main engine： Diesel engine
2,000 PS x 2 sets
Turning-type controllable pitch propeller： 2 sets
The swing-up type turning propulsion system developed by KHI was employed in the self-propelled barge of Honshu-Shikoku Bridge Authority also in 1997 following the first system employed in 1995, and plays an active part as the thruster for special use.
Hitachi Zosen delivered the wave-piercer type car ferry "SEA BIRD" completely made of aluminum alloy and 60 m in length which was intended for Corporation for Advanced Transport & Technology and Yasuda Ocean Vessel Co., Ltd., and the car ferry is now engaged in the service between Nagasaki and Kushikino. The shafting system is 4-engine, 4-shaft system, and the length of the shafting system on the inner side is different from that on the outer side due to the arrangement of the main engine.
The flexible coupling of lamination plate type is arranged between the water jet pump (Fig. 6.3) and the intermediate shaft, and the intermediate shaft and the main engine respectively to eliminate the effect by the deformation of the hull, and the two-split type roller bearing which is commonly used as the bulkhead seal and the bearing is equipped in the bulkhead part. The roller bearing of two-split type is employed in every intermediate bearing. The intermediate shaft is of hollow structure where the hollow ratio = 0.67 for the weight reduction.5)
Fig. 6.3 Propulsion system of SEA BIRD
