GPA Completes 254L AHTS Series Delivery with 54th Hull

press release
Friday, July 06, 2012
GPA 254L AHTS vessels, also known as the Bourbon Liberty 200 series.

Earlier this year, Naval Architecture and Marine Engineering firm Guido Perla & Associates, Inc. (GPA) completed a major milestone with the delivery of the final of 54 GPA 254L AHTS vessels, also known as the Bourbon Liberty 200 series, at Zhejiang Shipyard in China. 

 

In 2006, BOURBON Offshore placed an order with GPA for the Basic Design and Contract/Regulatory Package for 26 of these identical vessels.  In 2007, the order was expanded by an additional 28 vessels.  Designed and tailored specifically to BOURBON’s requirements, this extensive range of new-generation vessels supports the replacement market of technically obsolete offshore vessels worldwide.

 

As one of the global leaders in the design of modern offshore vessels with over 140 vessels in service or under construction for various operators, GPA brought an extensive level of knowledge and experience to this long-term project, setting a high value on technical and economical benefits to both the operator and shipyard.  GPA’s expertise, coupled with BOURBON’s understanding of offshore operations, resulted in a design characterized by optimized cargo capacity, improved fuel consumption, ease of maintenance, redundancy, excellent maneuverability and highest safety and offers a revolutionary shift to the operations in the offshore market. 

 

Efficiency was optimized by outfitting the GPA 254L AHTS series with some of the major equipment also utilized on the GPA 654M PSV (BOURBON Liberty 100 series), various versions of the GPA 670 PSV, as well as the GPA 696 IMR (BOURBON Evolution 800 series), totaling an additional 50 vessels Bourbon had constructed at Sinopacific’s yards Zhejiang and Dayang in recent years.

 

Several years ago, GPA pioneered the concept of locating the engine room on the main deck, fully utilizing the flexibility and benefits of a diesel-electric propulsion system.  The concept has since been implemented on numerous vessels worldwide, including the GPA 254L AHTS series. The concept increases the cargo capacity below deck by about 30% while, at the same time, the diesel-electric system offers a high degree of flexibility in terms of power management, allowing to bring on power in small increments to keep the engines at appropriate loadings, operating at their highest efficiencies.  Thus, fuel consumption and CO2 reject are reduced by 20-30% compared to conventional systems.  

 

An additional benefit of the concept is the notable reduction of noise and vibration levels in the accommodation areas, achieved by adding that extra deck level of attenuation between the accommodations and the bow thrusters and anchor handling equipment, two of the prime contributors to noise onboard these types of vessels.

 

The DP-2 certified system, with two azimuth and one fixed stern thrusters and two bow thrusters, allows for redundancy and increases the safe operating parameters for this modern AHTS.  Even in the event of failure in the control or propulsion system, GPA designed the vessel to be able to safely maintain precise position in close proximity to offshore facilities for anchor handling operations or cargo offloading.  The oval tank design for liquid products, coupled with a faster and automated cleaning system, enables optimized loading and transfer operations.

 

In addition to operational performance benefits, GPA’s design also offers an extremely economical, cost-efficient solution due to certain simplified construction methods.  GPA maintains a successful track record of designs following these proven standards, mainly single-curvature hull forms and other structural arrangements, such as transverse framing and flanged plate framing.  This combination enables shipyards to build more vessels in less time in a cost-efficient manner, which was crucial to the success of the GPA 254L AHTS series with a delivery cycle of approximately three weeks.

 

The GPA 254L AHTS, providing accommodations for 22 crew members, bears the class notation ABS, +DPS-2, SOLAS, FFV1, +AMS, +AH, Towing Vessel and Offshore Support Vessel. While these characteristics provide for an excellent vessel for deepwater offshore operations, BOURBON mainly operates the series in the continental offshore arena, bringing deepwater vessel technologies to shallow water operations.  However, the vessels’ adaptability also allows for operations outside the oil and gas sector.  One of the vessels was recently deployed in the offshore wind market,  installing a semi-submersible wind turbine off the coast of Portugal at Aguçadoura for Portuguese utility provider EDP. GPA sees the growing offshore wind market as an attractive opportunity in the near future, considering the activities of a GPA-designed vessel in that market as a first step in that direction.

 

“To accomplish the project requirements, GPA integrated good design engineering practice with production engineering and shipyard collaboration. We put significant effort into this project and worked closely for several years with the yard, owner and equipment suppliers to achieve our objectives. We take pride in being a part of this well-known series and are pleased to see it completed successfully,” concludes Jeff Horner, General Manager of GPA China. 
 

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

Shipbuilding

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

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.

Offshore

Nations Convene for Arctic Maritime Discussion

Citing an increasing need to ensure safety, security and stewardship of Arctic waters, member countries of the Arctic Council gathered at U.S. Coast Guard Headquarters

Advanced Drillships a Burden for Owners as Business Slows

Not so long ago, advanced drillships costing more than half a billion dollars each and capable of operating in ever-deeper waters practically guaranteed big profits for oil-rig operators.

Russia May Allow More Firms to Offshore Oil

Russia may allow more oil companies to access its offshore projects, Energy Minister Alexander Novak said on Friday.   "In general, the access can be extended," Novak told reporters in Moscow.

Energy

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.

Mexico Unveils National Strategy ahead of Paris Climate Talks

Mexico on Friday said it will cap its greenhouse gas emissions by 2026, becoming one of the first countries to formally submit its national climate plan the

Advanced Drillships a Burden for Owners as Business Slows

Not so long ago, advanced drillships costing more than half a billion dollars each and capable of operating in ever-deeper waters practically guaranteed big profits for oil-rig operators.

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 Security Maritime Standards Naval Architecture Pipelines Pod Propulsion Salvage Ship Repair 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: 0.2477 sec (4 req/sec)