Signet Constellation and Signet Stars & Stripes

Press Release
Friday, February 10, 2012

The Signet Constellation and Signet Stars & Stripes are the latest development in Robert Allan Ltd.’s RAstar series of tugs.

 

These two powerful new escort tugs have been delivered to their owner’s – Signet Maritime Corporation of Houston, Texas.  They were constructed to provide marine support services to Angola LNG Supply Services (ALSS) in the Port of Pascagoula, Mississippi. Designated as RAstar 3100s and designed by Naval Architects Robert Allan Ltd. of Vancouver, BC, they were constructed by Trinity Yachts LLC, at their Gulfport, MS shipyard. The names of these vessels pay tribute to past America’s Cup winners, the 12 meter yachts “CONSTELATION” (winner in 1964) and “STARS & STRIPES” (winner in 1987).

The particulars of this tug are as follows:
 

  • Length Overall   - 100’- 0”
  • Length Waterline  - 92’ -  1”
  • Beam, Moulded, extreme  - 40’-  0”
  • Depth, Moulded (hull)  - 17’-   5”
  • Maximum Draft over drives - 17’-   6”

 

Capacities are as follows:

 

  • Fuel Oil      - 62,000 gallons
  • Fresh Water     - 3,600 gallons
  • Lube Oil     - 700 gallons
  • Waste Oil     -300 gallons
  • Oily Water   - 300 gallons


The Signet Constellation and Signet Stars & Stripes are  classed for harbour, escort and emergency towing duties, with the following ABS notation;  A1, AMS, Towing Vessel, Escort, Fi-Fi 1.  Propulsion comprises a pair of CAT C175-16 diesel engines, each rated 2,550 kW (3,418 BHP) at 1,800 rpm, each driving a Rolls-Royce model US 255 drive, with 2,800 mm diameter controllable pitch propellers through a composite shafting system. The Signet Constellation and Signet Stars & Stripes are outfitted for a crew of eight (8) persons, in modern and well-equipped, air-conditioned accommodations. 


The main hawser winch is a dual drum Markey Model DESDF-48, 200 HP, Electric, Escort Render / Recover Winch. The aft deck is equipped for emergency towing with 96 tonne SWL towpost.  Electrical power is provided by three (3) x Northern Lights M1066, generator sets rated at 99 kW @ 1800 rpm, all connected in parallel. The tug has a full Fi-Fi 1 rating in accordance with Class notation requirements. The fire pumps are driven driven through gearbox with integral clutch and cooling system, which is driven off main engine front power take off via flexible coupling. On trials, Signet Constellation met or exceeded all performance expectations, with the following results:

 

  • Bollard Pull, ahead  - 81 tonnes
  • Free running speed, ahead - 13.5 knots

 

The RAstar series of Offshore/Escort Tugs by Robert Allan Ltd. have a unique sponsoned hull form, which has been proven in testing and real-world applications to provide significant enhanced escort towing and sea-keeping performance. Accelerations and motions are less than half those of comparable sized “standard” tug hulls. They are high-powered and manoeuvrable, typically intended for operations in weather and sea-exposed areas where a high standard of sea-keeping is required. The RAstar hull form is also energy-efficient, as the reduced waterline beam reduces free-running resistance considerably in comparison to other tugs of similar overall proportions. The unique hull form of the RAstar class, has been developed exclusively by Robert Allan Ltd. over many years of committed private research and development and is the proven standard in the escort tug world.
For more information on Signet Constellation and any other RAstar Class vessels, please contact Robert Allan Ltd. at design@ral.ca.
 

Maritime Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Carnival Sails to Profit

The world's largest cruise company Miami-based Carnival Corp reported a net profit of $49 million, or 6 cents per share in the first quarter ended Feb. 28.   That

Ukraine Arrests Turkish Ship for Visiting Crimean Port

Turkey owned merchant ship flying the flag of Tuvalu was arrested by Ukrainian authorities over a visit it made to a port in Crimea, reports Reuters. The ship's captain detained.

USCG Flush Ice down River Systems to Facilitate Shipping

The Coast Guard cutter fleet is flushing ice through the Great Lakes river systems to prevent ice jams and facilitate commercial shipping as the shipping season

Marine Propulsion

Schmiedag and Wildauer Schmiedewerke: 'We Forge Partnerships'

Olaf Wiertz, Sales Director at Schmiedag GmbH (SDG) and Wildauer Schmiedewerke GmbH & Co. KG (WSW) said: “We are more than just a supplier to our customers – we are their partner.

Lack of Ship Definition is a Threat to Investors

AKD says the lack of an unambiguous term to describe a ‘ship’ in several jurisdictions represents a potential threat to asset security for financiers, particularly

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Shipbuilding

First Supramax Vessel for Japan-Italy Venture

'DACC Tirreno' was delivered at the Oshima shipyard in Japan yesterday, the first of four Supramax bulk carriers for the dACC Maritime Limited fleet, the joint

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

BAE Systems to Expand San Diego Shipyard

BAE Systems announced it will invest approximately $100 million to expand drydocking capabilities at its San Diego shipyard.   The investment, which will include

Ship Sales

Yachting Malta PPP Sets Sail

Yatching Malta Ltd (YML) - a new public private partnership (PPP) between the government and the Royal Malta Yacht Club (RMYC) was formed with the aim of putting Malta on "the global yachting map".

China Cosco's Profit Up 54%

The Shanghai-and-Hong Kong-listed flagship unit of China Ocean Shipping Group, China Cosco Holdings Co Ltd says that its 2014 net profit went up 54 percent y/y at 362.

Damen joins World Ocean Council

Dutch-based Damen Shipyards Group has become the latest member of the World Ocean Council (WOC).    The global shipbuilder headquartered in the Netherlands is

Marine Power

Schmiedag and Wildauer Schmiedewerke: 'We Forge Partnerships'

Olaf Wiertz, Sales Director at Schmiedag GmbH (SDG) and Wildauer Schmiedewerke GmbH & Co. KG (WSW) said: “We are more than just a supplier to our customers – we are their partner.

Rolls-Royce Propulsion for Polar Research Vessel

Rolls-Royce informs it has been awarded a contract by shipbuilder Fincantieri to supply a fully integrated propulsion system for Norway’s new Polar Research Vessel,

Indonesia Partners with China on Maritime

Indonesian President Joko “Jokowi” Widodo and Chinese President Xi Jinping pledged increased maritime cooperation during the formers visit to China.   The joint

Naval Architecture

3D Machining Puts Wind in the Sails

With ESPRIT CAM software, Armor Mécanique has the wind in its sails; 50% time savings, better quality and new markets thanks to 3D machining Established in 1984

Changes in Aker Solutions' Top Deck

Tore Sjursen will assume the position as executive vice president for operational improvement and risk management at Aker Solutions on April 1. Knut Sandvik

Wärtsilä's' New Plant in Brazil

Following an investment of 20 million euros, Wärtsilä's' new unit will produce and test motor generators and thrusters   Wärtsilä's first unit at Porto do Açu in São João da Barra (RJ),

Maritime Safety

Is China Building a Naval Base in Africa?

Recently, The Namibian reported the existence of a "confidential letter from Namibia's ambassador to China, Ringo Abed, to Namibia's foreign minister stating that

USCG Flush Ice down River Systems to Facilitate Shipping

The Coast Guard cutter fleet is flushing ice through the Great Lakes river systems to prevent ice jams and facilitate commercial shipping as the shipping season

Mediterranean Rescue Operations Strain Shipping

The Wall Street Journal ran a story yesterday describing how the increasing number of seaborne migrants making the journey from Africa to Europe has not only

 
 
Maritime Careers / Shipboard Positions Naval Architecture Pipelines Port Authority Salvage Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar 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: 0.5012 sec (2 req/sec)