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 September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Delta "T" Hooks for Offshore Customer

Gaining further ground into the offshore crane market, Delta "T" Systems supplied Cranston Eagle hooks to crane manufacturer Appleton Marine, Inc.   These cranes

St. Lawrence Seaway Workers Extend Strike Deadline

The union that represents workers on the St. Lawrence Seaway, the waterway that links the Great Lakes and the Atlantic Ocean, has extended a strike deadline to Monday at 5 p.

New Functionality in WatchMate Vision

Vesper Marine has announced updates to its WatchMate Vision and XB-8000 product lines.   Now, in addition to transmitting and receiving position, course, speed

Shipbuilding

Arctic Oil: Bourbon to Enter Arctic Market in 2016

Bourbon plans to enter the growing Arctic Offshore market in 2016 with a new Anchor Handling Tug Supply (AHTS) vessel built by the Vard shipyard. This AHTS (Anchor

Mitsubishi Exits Cruise Business; Books $357m Loss

Mitsubishi Heavy Industries, Ltd. (MHI) announced its decision to book an extraordinary loss from its cruise ship business in the company's consolidated financial

Wärtsilä Propulsion Equipment for 2 Fishing Vessels

Two new 78 metre purser/trawler fishing vessels being designed and built at Karstensen Shipyard in Denmark will feature Wärtsilä's main propulsion and control equipment.

Ship Sales

Hyundai Heavy Plummets to Worse Loss Ever

South Korea's Hyundai Heavy Industries Co Ltd, the world's biggest shipbuilder, slid to a record quarterly loss of $1.8 billion and warned it's heading for its

Danaos Corp. 3Q & 9M Results

Danaos Corporation, a leading international owner of containerships, today reported unaudited results for the period ended September 30, 2014. Highlights for

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

Marine Power

Wärtsilä, Diesel United Renew Pact

Wärtsilä and Diesel United Ltd in Japan have signed a ten-year renewal of their co-operation agreement for the sale, manufacturing and servicing of Wärtsilä low-speed marine engines.

DNV GL Approvals for SAACKE Scrubbers

Classification increases planning certainty for exhaust gas scrubber operators.   The classification society DNV GL has certified the SAACKE exhaust gas scrubber

Schottel Optimizes Training With Simulator

Since autumn 2014 customers can exercise their handling and knowledge of SCHOTTEL propulsion systems in the SCHOTTEL Academy by using a training simulator.   Academy

Naval Architecture

AVEVA E3D Takes Center Stage

Customer case studies combine with advances in asset visualization and cloud technologies to showcase a new era in the creation and management of complex Digital Assets.

Naviera Integral Orders Damen Fast Crew Suppliers

Naviera Integral of Mexico is the launching customer of Damen’s new Sea Axe Fast Crew Supply vessel, the FCS 4008. President of Naviera Integral, Juan Pablo Vega,

Wärtsilä Propulsion and Design for Two OSVs

Two new 150-ton-bollard-pull anchor handling offshore support vessels (AHOSVs) being built at the Colombo Dockyard in Sri Lanka have been designed by Wärtsilä and

Maritime Safety

St. Lawrence Seaway Workers Extend Strike Deadline

The union that represents workers on the St. Lawrence Seaway, the waterway that links the Great Lakes and the Atlantic Ocean, has extended a strike deadline to Monday at 5 p.

New Functionality in WatchMate Vision

Vesper Marine has announced updates to its WatchMate Vision and XB-8000 product lines.   Now, in addition to transmitting and receiving position, course, speed

Libyan Government: Ports, Oil Fields Safe

Libyan oil ports and fields are safe and under government control, the country's interior minister said on Friday after visting the eastern Brega port. "This

 
 
Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Pipelines Port Authority Salvage 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: 0.5786 sec (2 req/sec)