Power for marine professionals
opportunity to choose the propulsion system that is best suited to their needs. Te four versions include:
• A diesel-driven BRAtt: the most economical choice, with conventional propulsion components;
• A hybrid BRAtt: modern alternative of integrated technologies with emission reductions optimised;
• An all-electric BRAtt: an emissions-free vessel for the perfect environmental solution; and
• A fuel-cell driven BRAtt: ‘tomorrow’s technology available today’.
The BRAtt has been designed fundamentally as
a training tool, but as soon as the idea was introduced to the towing industry the two companies had potential clients mentioning that it would also be a very cost-effective operating tug in small ports and in specialised operations such as dry-docking, line-handling and boom deployment, where a small but powerful tug would be far more useful than trying to do those jobs with a full-size 20-30m tug. Construction is actively underway at the moment at
Adrenalin Marine in Delta, British Columbia. Te BRAtt will be an ultra-compact but fully operational
training vessel, configured as a Z-drive tug, not a scale model, but will have all of the functional characteristics of a full-size tug. It has Z-drive propulsion, a fully operational ship-handling winch, and all the necessary accoutrements of a fully functional harbour tug but scaled down. The moulded dimensions of the prototype are
7.80m loa, 4.32m beam with an overall draught of 1.44m. Te tug will be of all-welded aluminium construction. Te reason for this choice of material is because of its portability and also low maintenance, as the nature of training operations leads one to anticipate frequent impacts and some minor damage. Te Z-drives are Olympic model HD3, a very simple and
rugged Z-drive unit developed in British Columbia used in the log industry. Te engines are Cummins model QSB5.9- 230 HD, rated 168bkW at 2600rpm, driving through a ZF Model 280-1 gearbox with a slip-clutch feature. Tis package is expected to develop 3630kg of bollard pull. Te entire tug is heavily fendered with a Shibata cylindrical fender system for maximum resilience. An advanced Techsol machinery and systems control, alarm and monitoring system is installed, and will ultimately enable the real-time playback and monitoring of trainee actions. Both Burchett Marine and Robert Allan are confident
that the BRAtt concept will find significant acceptance in the worlds of both tug operators and training institutes. Fully outfitted versions will be built in Canada or the USA, depending on the locale of the buyer. Full ‘kit boat’ options will be available for sale to operators in Europe, the Middle East, and in Asia, and the companies anticipate setting up a network of licensed builders who will achieve quality standards to provide completed tugs to local markets in these areas. SBI
clean Complete classified
Volvo Penta marine gensets are ready to go: Fuel in – electrical power out!
For economy and environment in harmony, the engines are low on both NOx emissions and fuel consumption.
Volvo Penta. Leaders in high speed marine gensets.
VOLVO PENTA MARINE GENSETS. ANOTHER EXAMPLE OF THE VOLVO PENTA GREEN COMMITMENT.
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