Robert Allan’s First of Class Design Alaryam

Thursday, June 30, 2011
Photo courtesy Robert Allan, Ltd

IRSHAD, a joint venture between ADNOC and Lamnalco, have just taken delivery of their latest high-performance terminal support/escort tug from Astilleros Balenciaga SA, of Zumaia, Spain. The Alaryam is the latest delivery of the widely acclaimed RAstar Class true escort tug designs from Robert Allan Ltd., Naval Architects of Vancouver, BC., but in actual fact was the first tug of the RAstar series ever designed. The design was the subject of an extensive series of model testing to prove the concept.

This RAstar 3600 Class vessel was designed to perform a wide range of tasks, including ship-handling, LNG and Oil tanker escort, fire-fighting and oil spill response/recovery duties. The RAstar class hull form ensures the highest standards of both escort towing capability and superior sea-keeping in the heavy sea conditions encountered in these operations.
 
The Alaryam is classed for unrestricted duty and accordingly was built to Lloyd's Register of Shipping Class: , and in full compliance with SOLAS and International Loadline regulations.
The particulars of the new tug are as follows:
Length Overall - 35.80 metres
Beam, Moulded - 13.50 metres
Depth, Moulded - 5.92 metres
Operating Draft, Maximum - 5.87 metres
GRT - 656
 
 
Tank Capacities are:
Fuel Oil - 284 m³
Potable water - 30 m³
Fi-Fi foam capacity - 32 m³
 
 
Propulsion comprises a pair of Wärtsilä 8L26 diesel engines, each rated 2600 kW at 1000 rpm, and each driving a Wärtsilä model CS275 controllable pitch Z-drive unit. With this propulsion system, the vessel performance satisfied all expectations, with a recorded Bollard Pull of 84 tonnes and a free-running speed of 14.7 knots.
The Alaryam is very well-equipped for its various towing and escort duties: the fore deck is fitted for typical ship-handling and escort work, with a Karmoy double-drum hawser winch, Karmoy tow-pins and Karmoy anchor windlasses. The winch features a towline render / recover system for escort operations and has capacity for 200 and 150 metres of 76 mm diameter high strength towline.
The aft deck is fitted with a 100 tonne SWL towing bitt and Mampaey towing hook. Also fitted are a 10 tonne capstan, and a hydraulic knuckle-boom deck crane of 15 tonne-metre capacity.
The Alaryam is outfitted to the highest standards for an operating crew of up to twelve (12) persons. Facilities on board include spacious crew rooms for the full complement in two (2) single cabins, each with individual en-suite toilet and shower facilities, and five (5) spacious double cabins. Public spaces include a generous combined lounge/mess area and a fully equipped and modern galley.
In common with the majority of Robert Allan Ltd. designed tugs, a great deal of attention was paid throughout the design process to mitigate the propagation of noise and vibration. This includes the essential resilient mounting of the main engines, isolation of all exhaust system components, and the extensive use of visco-elastic floating floor systems throughout.
 
Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Workboats

Smith Brothers Chrtisten New Tug

Smith Brothers, Inc., Chesapeake Bay-based barge and marine equipment charter company, recently added the tug Capt. Kenneth to its fleet of inland and truckable tugs.

KOTUG’s Hybrid Rotortug Arrives in Rotterdam

RT Evolution, KOTUG’s new hybrid Rotortug, has arrived in the Port of Rotterdam on Saturday, Oct. 18. In the coming weeks, Damen Shipyards Group will complete

Rolls-Royce to Design, Equip Stern Trawler for Ramoen

The Armon shipyard in Gijón, Spain has entered into a contract to build a new Stern Trawler for the Norwegian fishing company Ramoen. The vessel will be a Rolls-Royce design,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Naval Architecture Pipelines Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1709 sec (6 req/sec)