ASRY Builds Four New Shipyard Tugs

Thursday, December 15, 2011
(Photo: Greg Trauthwein)
While Bahrain’s Arab Shipbuilding & Repair Yard Co (ASRY) is an established power in the ship repair business, it had traditionally not engaged in the business of ship and boat building.
“The very simple answer, really, is that we have found there is more money to be made repairing ships than building them,” said Chris Potter, Chief Executive Officer, ASRY. ASRY is, however, capable, and is building a series of four new tugs for itself on its large slipways, with the lead vessel, as yet unnamed, due for delivery by the end of 2011. The new tugs are of a design developed by Singapore’s SeaTech Solutions International (S) Pte, with a materials package being provided by another Singapore-based company, Pacific Ocean Engineering & Trading Pte Ltd (POET). 
The new tugs are designed to be highly maneuverable and high performance Azimuth Stern Drive (ASD) design, having a length o.a. of 25.8m, beam molded of 9m, depth molded of 5m and draft molded of 4m. Bollard pull is 40 tons with speed, at half load, of 11 knots.
The quartet has been designed specifically for docking and berthing operations within the shipyard, as well as for coastal offshore towing. The compactness of the design allows for operations in restricted areas of the shipyard, as well as docks.  Equipped for fire-fighting operations as well as pollution control duties, the new tugs are also designed for push-pull operations from the bow and for towing operations from the stern hook. 
The layout of ASRY’s new tugs features a compact deckhouse placed well inboard, with spacious aft and fore decks. The wheelhouse provides a 360 degree view, while sky windows are fitted for enhanced ship handling operations during docking and undocking work. The hull of each tug is constructed of a double chine design with inclined transom stern and tapered bow. A double-plate skeg provides for good directional stability. 
The new shipyard tugs have a low air draft, enabling them to provide assistance to highly raked ships when docking and undocking, as well as manoeuvring under mooring lines. The hull is divided into four watertight compartments, while a heavy sheer strake around the hull, coupled with cylindrical fenders at the bow and the stern, provide for enhanced hull protection. Towing bits are located forward and aft, plus a combined hydraulic anchor/towing winch on the foredeck.
Propulsion for ASRY’s four new tugs comes from two Schottel SRP 1010 CP steerable rudder propeller units with CP inward rotating propellers in nozzles driven by two 1,324kW Yanmar 8N21 resiliently-mounted diesel engines, via cardan shafts, flexible couplings and clutch. Auxiliary machinery comprises two 99kW Volvo Penta diesel generators and two 20m3/hr bilge pumps.
For fire-fighting operations all four tugs are equipped with a 1,200m3/hr at 10.5 bar capacity fire-fighting pump, which is driven off the port main engine. The fire monitor can deliver either water of foam.  For pollution control duties each tug is equipped with a dispersant pump with two spray booms. Each tug has accommodation for a crew of eight.
 
 
Maritime Reporter November 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Shipbuilding

Damen Builds Tug, Dredger for Nicaragua

The Nicaraguan port authority Empresa Portuaria Nacional (EPN) is set to take delivery of two newbuilds from Damen Shipyards Group. Damen built both vessels, a

Ennsub Delivers ROV Deployment Systems

Ennsub has completed the design and manufacture of two workclass remotely operated vehicle (WROV) deployment systems for ROVOP, due to be installed into a newbuild

Damen Shipyards Galati wins Dutch Romanian Award

Damen Shipyards Galati has been presented with the Dutch Romanian Business Award for its Corporate Social Responsibility plan, particularly the Group’s community investment initiatives.

Workboats

Damen Builds Tug, Dredger for Nicaragua

The Nicaraguan port authority Empresa Portuaria Nacional (EPN) is set to take delivery of two newbuilds from Damen Shipyards Group. Damen built both vessels, a

Multraship Buys Three More Tugboats from Damen

Multraship and Damen Shipyards Group agreed on three new ASD (Azimuth Stern Drive) Tugs, all for delivery to Multraship in 2015. After delivery in Vietnam, scheduled

Waterjet-propelled Crewboat Delivered to Petrobras

BS Camburi, a 36-meter Monohull Crewboat built in Brazil by Arpoador Engenharia to the Petrobras type P2 specification has been launched and delivered.   Designed by Incat Crowther,

Ports

Wärtsilä to Begin Building LNG Terminal in January

Wärtsilä has been given full notice to proceed (NTP) from Manga LNG Oy for the supply of a liquefied natural gas (LNG) import terminal in Tornio, Northern Finland.

Benghazi Port Still Closed, Imports Rerouted

The commercial port in Libya's second city, Benghazi, remains closed due to fighting between pro-government and Islamist forces, forcing wheat imports to make a detour via Tobruk harbour,

EGAS Tenders for as many as 48 LNG Cargoes

Egypt's state-owned gas company EGAS has tendered to buy at least 48 cargoes of liquefied natural gas (LNG) for delivery in 2015/16, three traders said. A senior

Vessels

US Navy: Tortuga Allision Costs CO, XO Their Jobs

USS Tortuga's (LSD 46) Commanding Officer, Cmdr. Thomas Goudreau and Executive Officer, Cmdr. John Fleming, were relieved of their duties Dec. 16, due to loss of

Damen Builds Tug, Dredger for Nicaragua

The Nicaraguan port authority Empresa Portuaria Nacional (EPN) is set to take delivery of two newbuilds from Damen Shipyards Group. Damen built both vessels, a

Nordic Yards Delivers 'Wind Server'

Nordic Yards officially handed over the offshore service vessel to the Danish company DBB Jack-Up Services A/S. During the handover ceremony, the ship was named ‘WIND SERVER’.

 
 
Maritime Security Maritime Standards Navigation Offshore Oil Pipelines Pod Propulsion Salvage 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: 0.1854 sec (5 req/sec)