Sea Technology

JUL 2013

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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navycurrents Austal Delivers USNS Choctaw County to Navy The second joint high speed vessel (JHSV) from Austal (Henderson, Australia), USNS Choctaw County (JHSV-2), was delivered to the United States Navy. JHSV-2 completed acceptance trials in May, during which the Navy's Board of Inspection and Survey evaluated performance of the ship's major systems and equipment. Intended to provide transportation in shallow-draft waterways and ports, the JHSV is capable of transporting 600 short tons at least 1,200 nautical miles at an average speed of 35 knots. The ship also features a fight deck designed to support helicopter operations and a fast-rescue boat mounted midship on the port side. The vessel has airline-style seating for 312 embarked forces, with fxed berthing for 104. Navy, Civilian Planners Get Assist in Storm Predictions With the arrival of the Atlantic hurricane and Pacifc typhoon seasons, new technology sponsored by the U.S. Offce of Naval Research will be used to help Navy and civilian offcials plan for stormy weather. The Coupled Ocean/Atmosphere Mesoscale Prediction System-Tropical Cyclone is a new weather prediction model that offers forecasters a detailed look at tropical storms and gives accurate predictions of a storm's intensity from one to fve days out. The new model went fully operational on June 6 at the Navy's Fleet Numerical and Meteorology and Oceanography Center. The program was developed by researchers at the Naval Research Laboratory, primarily to support the Department of Defense's Joint Typhoon Weather Center. the fve naval shipyards of Astilleros de la SecretarĂ­a de Marina. The vessels are designed to perform patrol duties in designated areas. Other clients who operate similar vessels in the region include the navies and coast guards of Jamaica, Barbados, the Dutch Caribbean, Honduras and the Canadian Coast Guard. The Spa 4207 patrol vessel will be the third of its class. The previous two vessels, ARM Tenochtitlan (PC-331) and ARM Teotihuacan (PC-332), started construction in 2011 and were delivered mid-2012. Seakeeper Stabilizes Naval Vessels Under contract with the U.S. Navy, Modutech Marine Inc. (Tacoma, Washington) completed the frst of four 95-footrange training support craft, each equipped with three Seakeeper (California, Maryland) M26000 gyro stabilizers. Crews aboard naval vessels beneft from having a stable operating platform. Compact and internal, Seakeeper's gyro stabilization systems create roll reduction for vessels underway and at low or zero speed. Now being ft with government-furnished equipment, the frst vessel's fnal delivery is expected in Guam. With an average displacement estimated at 130 tons, the vessel will provide support to naval operations. A multimission weather deck and aft ramp accommodate the launch, recovery and storage of targets, as well as MK-30 and BQM74 aerial targets and a variety of torpedoes. There are also two hydraulic mission equipment handling winches and dual 5.5-ton cranes. The vessel is ftted to perform towing operations. n Russia Renews Presence in Mediterranean Citing defense of national security, Russian President Vladimir Putin has deployed 16 warships to the Mediterranean Sea, reported Reuters. This is the frst time since the Soviet era that Russia has had a presence in the Mediterranean. Though not intended as a threat, the feet moved into Western waters while Russia is at odds with the West over the confict in Syria. Moscow has sold arms to the Sryian government, and the nation's support for President Bashar al-Assad has been a point of contention. Russia has recently engaged in naval exercises and moving ships toward Syria, actions viewed by the West as muscle fexing. Since returning to offce last May, President Putin has made a capable military a priority. As part of a campaign to rebuild Russia's military power, submarines carrying nuclear weapons will begin to monitor the nation's southern seas. Damen to Design Ship for Mexico Navy The Mexican Navy has contracted Damen Shipyards Group (Gorinchem, Netherlands) for the design and material package of a Damen Stan Patrol 4207, including technical assistance. Construction of the vessel will start in the summer of 2013 at ASTIMAR 1 (Tampico, Mexico), one of www.sea-technology.com July 2013 / st 55

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