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July 2011 Issue

UTE Langosteira Port Project Uses CodaOctopus Echoscope
Engineers with UTE Langosteira, a consortium of companies involved in a port expansion project on the northwest coast of Spain, recently decided to use CodaOctopus Products' (Edinburgh, Scotland) real-time, high-definition multibeam Echoscope 3D sonar to help them place large concrete breakwater blocks underwater.

The UTE Langosteira project consists of forming a 240-hectare deepwater shipping basin protected by a manmade breakwater running for almost 3.5 kilometers across the port of Punta Langosteira.

To ensure this breakwater will withstand the forces of the large Atlantic swells that periodically strike this area, civil engineers determined they would need to place armored blocks in the bay. On the seaward side, the breakwater is being formed using 150-tonne concrete armoring blocks. On the inward side, the breakwater is designed to have thousands of 52-tonne rectangular concrete blocks placed in a wall-like arrangement to a depth of about 14 meters.

After using the Echoscope, José Enrique Pérez Noguer, UTE Langosteira's general manager, said productivity and accuracy for block placement has almost tripled. He also said with the less frequent use of divers to check alignment, there have been no reported safety issues. For more information, visit www.codaoctopus.com.

LinkQuest Transponders Record Japanese Quake
Precision marine geodetic system (PMGS) transponders manufactured by LinkQuest (San Diego, California) and installed on the fault responsible for the 9.0-magnitude Japanese earthquake recorded horizontal seafloor movement of up to 24 meters and a vertical seafloor movement of up to three meters, the company said in May.

LinkQuest has been working with the Japan Maritime Safety Agency and Japan's coast guard since 1999. Since then, more than 100 PMGS transponders have been deployed on Japan's seafloors.

LinkQuest said the PMGS transponders that detected the earthquake were deployed about 10 years ago along the fault where the March 11 earthquake occurred. For more information, visit www.link-quest.com.

MSI Completes UK Rosebank Current Measurement Program
Hobart, Australia-based Metocean Services International (MSI) has completed a near-14-month deepwater current measurement program for Chevron North Sea Ltd. (Aberdeen, Scotland), MSI announced in May.

The mooring, initially deployed in January 2010, was comprised of a Teledyne RD Instruments (Poway, California) 75-kilohertz acoustic Doppler current profiler, six Nortek (Rud, Norway) Aquadopp single-point current meters and an RBR Ltd. (Ottawa, Canada) tide gauge. The mooring was recovered, serviced and redeployed in May and October of 2010, with final recovery in March.

Over the course of the project, various vessels were used for mobilization out of Aberdeen, and all operations were conducted with zero incidents, accidents or near misses, MSI said. For more information, visit www.metoceanservices.com.

Seakeeper Gyro Steadies US Navy TWR-8, Lowers Fuel Use, Company Says
For comfort and safety of the crew, Deception Pass, an 85-foot U.S. Navy torpedo weapons retriever and security craft (TWR-8), was recently retrofitted with Seakeeper's (California, Maryland) M21000 gyro stabilization system, which also reduced fuel consumption, the company reported in May.

"The ship's center of height is so tall, we've had roll mitigation problems," said Richard Bottalico, a marine engineer for the Naval Undersea Warfare Center. "When we retrieve torpedoes, we like to have as flat and stable a platform as possible."

After considering the speed impact and financial costs of installing stabilization fins, Bottalico said he looked into Seakeeper's gyros. "After a demo ride, I was sold. When we were in a trough, the gyro was engaged, spooled a few cycles and the boat flattened right out."

The M21000 spins a forged, high-strength steel flywheel at 4,000 rotations per minute in a near-vacuum to generate 21,000 Newton meter seconds of righting force. A Seakeeper employee said the vessel should experience roll reduction of up to 80 percent. For more information, visit www.seakeeper.com.

Donjon Performs Wreck Removal Offshore New Jersey
After the 70-foot fishing boat Atlantic Traveler hit the south jetty of Manasquan Inlet off Point Pleasant Beach, New Jersey, causing it to sink upside down, weeks of bad weather followed. During this time Donjon Marine Co. Inc. (Hillside, New Jersey) was able to mobilize its 400-ton capacity crane barge Columbia NY from its home base in Port Newark, New Jersey, to perform the wreck removal of the vessel.

Donjon salvage crews, working from the beach, prepared the Atlantic Traveler for lift by cutting holes through the hull for placement of the heavy lift slings. Once the weather calmed, Donjon completed the salvage effort in one day. Due to the damage sustained to the vessel as a result of the sinking, the Atlantic Traveler will be cut up and recycled. For more information, visit www.donjon.com.

K-Master Aft Bridge Workstation Debuts on Fugro Symphony
Fugro Symphony, a 130-meter long new offshore construction vessel, became in May the first ever to sail with Kongsberg Maritime's (Kongsberg, Norway) K-Master aft bridge workstation onboard.

Built at the Bergen Group BMV (Bergen, Norway) yard for Fugro Subsea Services Ltd. (Aberdeen, Scotland), Fugro Symphony was delivered in May. The K-Master workstation consolidates the traditional five- to six-meter aft bridge console into a single- or dual-operator chair. It also uses touch-control technology to replace mechanical switches in bridge applications.

In addition to the K-Master system, Kongsberg also supplied the control and monitoring systems for the Fugro Symphony, such as the automation for the ballast, alarm, thruster control, dynamic positioning and independent joystick systems. Kongsberg also provided the GPS, a high-precision acoustic positioning system and its Seapath position, attitude, time and heading sensors. For more information, visit www.km.kongsberg.com.
2012:  JAN | FEB | MARCH | APRIL | MAY | JUNE | JULY | AUG | SEPT | OCT | NOV | DEC
2011:  JAN | FEB | MARCH | APRIL | MAY | JUNE | JULY | AUG | SEPT | OCT | NOV | DEC


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