‘Svitzer Adira’: a look under the bonnet of a RAstar 2800
Sanmar Shipyards’ recent delivery and subsequent naming of the ASD tug ‘Svitzer Adira’ makes an interesting addition to Svitzer’s fleet in the UK port of Southampton and is worthy of a closer look.
Svitzer Adira was christened by its godmother Andry Waterman accompanied by managing director Svitzer Europe Kasper Nilaus and joins the company’s varied fleet of Southampton-based tugs. The south coast port handles around 1.7m cruise passengers annually and with the UK’s second largest container terminal is seeing increasingly larger vessels from this sector. This latest addition to the port’s tug fleet can therefore be considered a direct response to the requirements for this diverse and growing port.
The vessel is an example of Sanmar’s Terminal ASD series and was launched as Sanmar Terminal XIV before receiving its current name once in service. It is a Robert Allan Ltd RAstar 2800 design built for demanding escort towing operations while also at home handling large vessels in confined spaces. Classed by ABS it carries the notation: +A1, +AMS, +ABCU, fi-fi1, TOWING VESSEL, ESCORT VESSEL, UNRESTRICTED SERVICE, UWILD. The tug is of compact design with main dimensions 28.2m LOA on a beam of 12.6m and maximum draught 5.7m. Tank capacities include fuel oil 119m3 and fresh water 12.9m3.
The description of ‘compact’ does not translate to a shortage of power, however, and a respectable 80tbp is provided by twin Caterpillar 3516C, Tier II, plate cooler cooled resiliently-mounted main engines developing 2,525bkW each at 1,800rpm. Propulsion is via Rolls-Royce US 255CP thrusters incorporating 2,800mm diameter, four-bladed CuNiAl propellers in nozzles delivering a vessel speed of 14kn. Auxiliary machinery includes two 86ekW (@1,500rpm) Caterpillar C4.4 gensets. Main engine silencers are supplied by Silentor of Denmark and engine sound insulation isolators are from Vulkan of Germany. The fuel separator is supplied by Westfalia
Towing is carried out over the bow but starting with the anchoring arrangements, two 295kg HHP type anchors with 20.5mm Grade 2 chain and ABS-approved chain stoppers are provided. A Rolls-Royce TW-2500/700 hydraulic, split-drum variable speed heavy-duty escort towing winch is located forward, each drum holding 200m of 60mm synthetic rope with line pulls of 70t and 12t at a maximum of 12m/minute and 60m/minute respectively. Brake load is 250t and the winch has fully automated render/recovery capabilities plus: remote ‘abort’ mechanism, spooling device, length indicator and tension meter. A 187t SWL ‘U’-shaped towing staple with polished stainless-steel liner is fitted at the bow.
Svitzer Adira has a closed stern and a 100t SWL towing hook with manual and remote release fitted to the aft towing post. Still on the after deck, a Palfinger PK 11001 MA deck crane with maximum lift and outreach 9.6t and 7.8m and wire winch is located on the port side.
Fendering is as to be expected robust consisting of forward (lower course) heavy-duty rubber 800mm OD by 400mm ID hollow cylindrical sections secured with chain and nylon web straps. The vertical (bow) element is 300mm hollow ‘W’ type while the vessel’s main sheer is provided with 300mm ‘D’ type and the transom 300mm ‘W’ type fender.
Svitzer Adira meets fifi1 standard with two main engine PTO driven fire pumps (capacity 1,400m3/hr each) supplying two 1,200m3/hr water/foam monitors supplied by FFS with a throw length/height of 120m and 50m forward of the wheelhouse. Storage for 12,000 litres of foam is included suitable for 3% to 6% solution. A 400m3/hr self-protection deluge system is provided, and ancillary fire-fighting equipment includes four firefighter’s outfits and breathing apparatus.
ACCOMMODATION AND WHEELHOUSE
Accommodation is to the typically high quality of such vessels nowadays, sound and vibration levels meeting strict regulatory requirements. Two single cabins are located on the upper deck with three double cabins on the deck below, all are en-suite, fully heated and air-conditioned, the HVAC system supplied by Heinen & Hopman. The mess room/lounge is furnished with heavy-duty durable fittings and includes an entertainment centre with television, DVD player and AM/FM radio (main unit in the wheelhouse). The galley is equipped to high commercial standards with emphasis on brushed 304 stainless-steel appliances well-secured to resist ship motions. Suppliers of note for the accommodation and other areas include insulation from Izocam of Turkey; another Turkish company, Ensar supplied the accommodation panels and doors while UK-based Amtico supplied floor material and Denmark’s Sika the sound insulation.
The high standards of RAL-designed and Sanmar-built vessels extend to Svitzer Adira’s wheelhouse. Split-style consoles are located each side of the centreline with a leather upholstered pilot chair on a sliding track running between. A chart table/desk, flag locker and bookshelves complete the wheelhouse furnishings. With the vessel classed for an unmanned engine room, day-to-day operation of the machinery is centred in the wheelhouse, this includes: main and back-up propulsion and steering systems including start/stop; local fire pump and fifi control; towing winch control and monitoring and of course the usual heating, lighting and other services. All external lights are certified explosion proof suitable for Zone 2 LNG environments and the wheelhouse windows are from IDE Marine.
The navigation and communication installation comply with SOLAS standards, supplied in the main by Furuno including: FAR-2117-BB X-band ARPA radar, WS-200 weather station, SC-50 satellite compass, GP-150 DGPS navigator, FA-150 AIS, FE-700 echo sounder, NX-700B Navtex receiver, FS1570 MF/HF radiotelephone, FM-8900S VHF/DSC radiotelephone and Felcom-16 SSAS/LRIT. Also worthy of mention are Jotron who supply two TR-20 handheld VHFs, a 40S MkII float-free EPIRB and a SART radar transponder. Hatteland supplied the 19” LCD radar display while Alphatron provided the MFC autopilot and Cassens & Plath a Reflecta magnetic compass and finally Zentinel Marine the internal communication system.
Lifesaving equipment satisfies regulatory requirements and includes two SOLAS-approved 10-man Viking liferafts (hydrostatic and manual release), ten lifebuoys and eight lifejackets.
By Peter Barker
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