NEW DELIVERIES


patrol vessels which significantly improve safety for ‘customer’ and ‘stake-holder’ river users and, through the reduced resistance - principally achieved through wash reduction - substantially reduce the vessels’ carbon footprint from operational fuel consumption and subsequent emissions.


The vessel The first Ecocats E31 patrol launch, Chelsea, was delivered to the PLA in October 2006


(Significant Small Ships of 2006), with the second vessel of the class expected soon. The vessels have a large operational


platform, f lexible to a variety of tasks, and will carry all equipment and resources required for duty, yet have a displacement less than half that of the current patrol launches. The hull form is expected to allow the normal


patrol speed of 6knots-8knots to be achieved with virtually no wash, and emergency response to be achieved, at 18knots, with one


third the wash wave-height and substantially less wash energy (approximately one fifth of current) than that created by the current semi-displacement monohulls. While similarly safe and environmentally


responsible characteristics but a higher speed might be required in operation by other authorities, the absence of petrol on the tidal Thames constrains power and performance to that available from the Yanmar diesel outboard motors selected.


New pilot for Dublin port C


ORK-based Safehaven Marine has delivered the Port of Dublin’s new pilot


vessel, an Interceptor 42 ‘all weather pilot’. The contract was initially awarded after the Dublin pilots undertook sea trials off Cork Harbour in severe storm force 9 conditions and 10m seas in the previously supplied Gleann Mor (Significant Small Ships of 2006), Cork harbour's Interceptor 42 pilot boat. Now 12 months after Gleann Mor’s launch,


the Cork pilot boat has been fully tested in what is the most stormy winter in records. She has carried out boardings in severe storm force 11 with 100mph winds and 9m seas. The Port of Dublin’s pilot boat was launched


in February and has been undergoing extensive sea trials since then to test her specialised equipment. The vessel is fitted with Caterpillar C12


12litre engines rated at 575hp, this provides her with a maximum speed of 27knots at her 17,000kg displacement. This exceeds her contract requirement by a large margin, so she will be governed back to 450hp, to provide a 22knot-23knot operational speed. The electronic fit out was carried out by MES,


and featured special emphasis on redundancy systems with separate alternators on each engine for charging and service, an AC system providing 240v for cabin black heaters, and battery monitoring/charging. The electronic navigation package is based


on Raymarine C120 series, with radar and chart plotter capable of being overlaid with AIS information for ease of ship identification. The package was supplied by Cork-based firm Dunmast. The Port of Dublin’s vessel incorporates


a number of small design changes to accommodate the specific requirements of the port. The vessel has the same central helm position, facilitating boarding on the side most suited to the prevailing conditions, a feature that has proved very popular with the Cork Harbour coxswains. The vessel has a large build strength of


150mm x 150mm transverse framing at 500mm centres, with substantial knees at the hull to deck join. This ensures that the likelihood of any structural damage occurring during normal operation is remote. This heavy build strength also translates


into a heavy displacement, giving the vessel a very solid feel in the water, and is especially


6


The new Safehaven Interceptor on sea trials, in storm force 9 conditions, at the entrance to Cork Harbour.


beneficial when coming alongside with steadier, slower motions than would be felt in a lighter, and correspondingly livelier craft. She is fitted with heavy duty fendering of 150mm x 150mm with a 38mm wall thickness around the gunwale supplied by Technix Rubber, with a lower line of fendering and multiple diagonals to provide a high level of protection to the hull. In addition, a large stainless steel bow protector and stainless steel stem and keel shoes protect her from floating debris. Visibility is maximised with high level


windows in the cabin sides and roof, her front windows are toughened glass of 13mm thickness with heated screens. The Dublin vessel is fitted with a specialised


coxswain identification system and impact/ damage data logging hardware. A swipe card system will log on individual crew identification, allowing the port an accurate record of who is control of the craft at any one time. Additionally, a data logging system has


been designed with GPS monitoring of speed, position, course, and time. It is connected to a six axis accelerometer fitted on the vessel's hull structure. The data logger will continuously record data when predetermined impact thresholds are exceeded. The engines are to be fitted with a number


of unique features, such as remote monitoring of the operating parameters from a shore based station, three minute cool-down on the engines when switched off to prevent turbo damage, and engine stand heaters, all of which is designed to prolong engine life. Safehaven Marine is currently undergoing a expansion with a new 930m2


factory being


built in Cork and will facilitate the company's expansion - specialising in the production of pilot craft. The current Interceptor pilot boat range


is being increased with the introduction of new 14m and 15m versions. Currently on order are new pilot vessels for the Port of Portland, in the UK, and the Port of St Malo, in France.


SHIP & BOAT INTERNATIONAL MAY/JUNE 2007


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