42 In-depth Issue 14 Waterjet propulsion power Despite the current economic downturn, transport needs still have to be met. Operators of high-speed ferries continue to modernise their fleets and improve their routes. Rolls-Royce is there to provide the waterjets that incorporate the latest technology for high efficiency. The 107m Austal ferries ordered by operator Vitu Ferries will operate on a route between Malta and Scily and will be propelled by four Kamewa 125S3 waterjets for a service speed of about 39 knots. V irtu Ferries in Malta has ordered a 107m long catamaran ferry from Austal in Australia, which will carry up to 800 passengers and 230 cars at about 39 knots on a route between Malta and Sicily. On delivery scheduled for mid-2010, the new ferry will join Maria Dolores, a 68m catamaran from the same yard that went into service in 2006, greatly expanding capacity on the Malta-Italy link. Based on Austal’s proven large catamaran ferry technology including active ride control, Virtu’s new vessel is tailored to the requirements of the route. As an alternative to carrying a full complement of cars, the vehicle decks are configured for 342 lane-metres for trucks plus 45 cars. The new Kamewa S3 series waterjets will provide the thrust needed to give the 39 knot service speed. Four Kamewa 125S3 waterjets, two in each hull, will each be driven by a 9,100kW diesel engine. These waterjets incorporate the latest Rolls-Royce technology with increased efficiency, reduced weight and lower life-cycle costs. Two smaller Austal catamarans recently delivered to Saudi Arabia also feature S3 series Kamewa waterjets, in this case 80S3 units. Jazan and Farasan operate a 25 nautical mile route linking Jazan in the south of Saudi Arabia with Farasan island, carrying tourist and commuter traffic. These 69m long aluminium vessels have seating for 650 passengers, prayer rooms, food service, and a vehicle deck suitable for both cars and trucks in a drive-through layout with bow and stern ramps. Each catamaran has four waterjets, each powered by a 2,880kW diesel engine to give a speed of 32 knots at 90 per cent maximum The recently delivered Farasan and Jazan, 69m Austal catamarans are the first to be fitted with the new Kamewa S3 waterjets. continuous rating. Jazan and Farasan are the last two in a four-vessel order placed by the Saudi Arabian Ministry of Finance. The first two were larger Austal Auto Express 88-class fast ropax ferries also propelled by four Kamewa waterjets and delivered last year. They were subsequently given to the Egyptian government to improve ferry services across the Red Sea for pilgrims travelling to Mecca as well as business and leisure customers, and are in service on the 100-nautical mile route between Dibba in Saudi Arabia and Safaga in Egypt. Waterjets from the Kamewa FF aluminium range have been selected to propel fast crewboats for the Asian offshore industry. The Indonesian shipbuilder PT Steadfast Marine has completed its first boat of this type, the 16.5m long Samudra Mutiara. This yard had traditionally built in steel, but two years ago decided to diversify into aluminium construction. To make this move it ordered two ‘design and material’ packages from Damen in the Netherlands. The design chosen from the Damen portfolio was the Fast Crew Supplier 1605, and Damen supervised construction. Samudra Mutiara has an aluminium hull and FRP superstructure. Two 448kW high-speed diesel engines are coupled to two Kamewa FF 375S waterjets which give a speed of 28 knots. This crewboat has seating for 27 people and is operated by a crew of two. Rolls-Royce has delivered a FF 240 waterjet with electronic control system for an Unmanned Sea Vehicle (USV) developed for the German Navy. A USV can conduct operations where deploying human beings would be extremely hazardous, for example in capturing drifting contact mines. www.rolls-royce.com Rheinmetall is integrating robotic components into a Watercat M8 fast attack boat made by Marine Alutech in Finland. Weighing just under two tonnes and measuring approximately eight metres in length, the boat has a top speed of 35 knots. It will initially be used for evaluation purposes, but it can operate in manned mode, autonomously or in remote control mode, and also features automatic waypoint navigation. 43 Rolls-Royce has delivered a FF 240 waterjet with electronic control system for an Unmanned Sea Vehicle (USV) developed for the German Navy. [RW] A FF240 waterjet with electronic controls will allow a M8 fast attack craft to operate as an Unmanned Sea Vehicle. New 16.5m fast crewboats to serve the Asian offshore industry are powered by a pair of FF375 waterjets for a speed of 28 knots.
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