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52 MN May 2011 PRODUCTS Waterjet Propulsion Systems from Ultra Dynamics Ultra Dynamics UltraJet waterjet propulsion systems have been designed to minimize the amount of design and construction work for the boat builder by incorporating onto the jet many of the fea- tures that were previously mounted separately. Easy and quick installation lowers boat builders’ costs and optimizes their build schedules. UltraJet waterjets are based on a high efficiency single stage axial flow pump unit with a variety of installation and control system options. A range of impeller options are available. www.ultradynamics.com HamiltonJets for Offshore Wind Farm Catamarans HamiltonJet was selected as the propulsion partner in three recent catamarans working in the offshore industry. The vessels include the 59-ft Windcat 21 with twin HamiltonJet HM571 water- jets, for UK/Netherlands- based Windcat Workboats; the 75.5-ft CarboCat 23 cata- maran with twin HamiltonJet HM571 waterjets, the first offshore wind farm support vessel to utilize carbon fiber construction; the 91.8-ft cata- maran with twin HamiltonJet HM651 waterjets, current- ly in build in the UAE at Topaz Shipbuilding. www.hamiltonjet.com Honda Marine’s BF250 The concept BF250 engine is based upon a 3.6 liter engine platform and features Boosted Low Speed Torque (BLAST) to improve acceleration at low speeds. The out- board also features 4-stroke design, a large displacement V6, VTEC, Lean Burn Control, dual stage induction, oxygen and knock sensors, balanced engine, tuned dual exhaust, multi-port pro- grammed fuel injection (PGM-FI), non-linear mounting system and counter rota- tion. www.honda.com Seven Marine’s 557 HP Outboard Seven Marine unveiled their 557 hp outboard. The all aluminium 6.2 liter supercharged V8 engine was sourced from GM where it is normally found under the hood of the Cadillac CTS-V sports sedan. Additions to the Cadillac V8 auto engine have been kept to a minimum, with the exception of a corro- sion-proof stainless steel exhaust system. In association with ZF Marine the 557 offers a CAN-bus enabled disc-clutch mechanism that enables smooth, computer- controlled shifting together with a joystick controller. www.seven-marine.com Torqueedo New Electric Outboard Torqueedo's new 2011 electric outboard models have maintenance-free brushless DC motors with rare earth magnets (six times the field strength and torque of ordi- nary magnets) giving increased efficiency and load/speed management.The batteries are lithium-based. Operational perform- ance of the 9.9 hp model, meant for vessels up to four tons, is three knots with eight hours run time and six to 11 knots with an hour and 10 minute run time. A throttle display gives constant readout of battery charge status with (GPS enabled) speed over the ground and remaining range. www.torqueedo.com OmniThruster HT Series OmniThruster’s HT Series (200-600 hp) thrust direc- tors were developed to provide small vessels maneuvering and auxiliary propulsion capabilities. The thrust directors add forward and aft auxiliary propulsion to the standard port/starboard system by deflecting the waterjet to the fore or aft which produces an equal and opposite reaction. When the thrust directors are coupled with an upgraded control system, a fully proportional 360 degree maneu- vering system results. www.omnithruster.com Image courtesy Ultra Dynamics Photo courtesy HamiltonJet Image courtesy Honda Marine Image courtesy Seven Marine Photo courtesy Torqueedo Image courtesy OmniThruster
