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Deux navires de transport rapide pour la marine omanaise - Mer et Marine

Deux navires de transport rapide pour la marine omanaise - Mer et Marine | Newsletter navale |

C’est à Oman qu’Austal a vendu deux navires rapides de transport de troupes et de matériel. Le constructeur australien, qui avait annoncé en mars dernier cette commande sans préciser l’identité de son client, a levé le voile sur le contrat et le design des bâtiments qui seront construits pour la marine omanaise.

Inspirés des Joint High Speed Vessel (JHSV) développés pour l’US Navy, qui en fait construire 10 exemplaires chez Austal à Mobile (Etats-Unis) , les High Speed Support Vessels (HSSV) commandés par le sultanat mesureront 72.5 mètres de long pour 18.2 mètres de large, avec un tirant d’eau de 3.2 mètres. Affichant un port en lourd de 320 tonnes, ils seront armés par un équipage de 69 marins et pourront atteindre la vitesse de 35 nœuds avec 200 tonnes de charge. La propulsion comprendra quatre moteurs diesels MTU 20V 4000 M93L et quatre hydrojets Rolls-Royce 80S3.

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L'identité du client d'Austal avait en fait été révélée en juillet dernier :

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Austal obtient un contrat avec la Marine omanaise de 2 HSSV basés sur le design du JHSV de l'US Navy

Austal obtient un contrat avec la Marine omanaise de 2 HSSV basés sur le design du JHSV de l'US Navy | Newsletter navale |

Austal announced earlier this year that it has been awarded a contract from a naval customer in the Middle East for the design, construction and integrated logistics support of two new 72 metre High Speed Support Vessels (HSSVs) based on the U.S. Navy's Joint High Speed Vessels design. It now appears that this customer is the Royal Navy of Oman.

The value of the contract is approximately US$124.9 million.
Austal will construct the HSSVs at its shipyard in Henderson, Western Australia. Construction of the first vessel is expected to commence in CY2014, with the second vessel expected to be delivered in CY2016.
The HSSVs will be deployed with a similar mission to the Joint High Speed Vessels currently being constructed by Austal for the US Navy at the Company’s shipyard in Mobile, Alabama.

deployment of military personnel and cargo, and search and rescue operations.

Basic specifications of future Royal Navy of Oman HSSVs:
Hull number: 390 & 391
Hull type: Catamaran
Length: 72.50 metres
Capacity: 320 tonnes, 69 Crew, 69 fixed berths, 250 personnel seating
Speed: 35 knots

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L'US Navy programme une installation pour essais du canon électromagnétique à bord d'un JHSV en 2016

L'US Navy programme une installation pour essais du canon électromagnétique à bord d'un JHSV en 2016 | Newsletter navale |

Washington April 7, 2014 - The U.S. Navy plans to install and test a prototype electromagnetic railgun aboard a joint high speed vessel in fiscal year 2016, the service announced today.
This test will mark the first time an electromagnetic railgun (EM railgun) has been demonstrated at sea, symbolizing a significant advance in naval combat.
EM railgun technology uses an electromagnetic force - known as the Lorenz Force - to rapidly accelerate and launch a projectile between two conductive rails. This guided projectile is launched at such high velocities that it can achieve greater ranges than conventional guns. It maintains enough kinetic energy that it doesn't require any kind of high explosive payload when it reaches its target.
High-energy EM railguns are expected to be lethal and effective against multiple threats, including enemy warships, small boats, aircraft, missiles and land-based targets.
"The electromagnetic railgun represents an incredible new offensive capability for the U.S. Navy," said Rear Adm. Bryant Fuller, the Navy's chief engineer. "This capability will allow us to effectively counter a wide-range of threats at a relatively low cost, while keeping our ships and sailors safer by removing the need to carry as many high-explosive weapons."
EM railgun technology will complement current kinetic weapons currently onboard surface combatants and offer a few specific advantages. Against specific threats, the cost per engagement is orders of magnitude less expensive than comparable missile engagements. The
projectile itself is being designed to be common with some current powder guns, enabling the conservation of expensive missiles for use against more complex threats.
"Energetic weapons, such as EM railguns, are the future of naval combat," said Rear Adm. Matt Klunder, the chief of naval research. "The U.S. Navy is at the forefront of this game-changing technology."
This demonstration is the latest in a series of technical maturation efforts designed to provide an operational railgun to the fleet. Since 2005, the Navy and its partners in industry and academia have been testing railgun technology at the Naval Surface Warfare Center in Dahlgren, Va., and the Naval Research Lab where the service has a number of prototype systems.
The final operational system will be capable of launching guided, multi-mission projectiles to a range of 110 nautical miles against a wide range of threats. The series of tests are designed to capture lessons for incorporation into a future tactical design and will allow the Navy to best understand needed ship modifications before fully integrating the technology.
The Navy is using JHSV as a vessel of opportunity because of its available cargo and topside space and schedule flexibility. Because JHSVs are non-combatants, there is no plan to permanently install a railgun on any ship of the class. A final decision has not been made on which ship classes will receive a fully operational railgun.

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Le JHSV Spearhead va effectuer son déploiement inaugural sur les côtes européennes et africaines

Le JHSV Spearhead va effectuer son déploiement inaugural sur les côtes européennes et africaines | Newsletter navale |

A new breed of Navy ship is preparing to begin its maiden deployment.

The Spearhead is a joint high-speed vessel that can be called upon by the Army, Navy or Marines to quickly ferry people and equipment for a variety of missions. Its 22-person crew is composed of civilians, but it also has a small Navy detachment onboard.

The ship is scheduled to leave Joint Expeditionary Base Little Creek-Fort Story on its way to Europe and Africa on Thursday, where commanders will test out the new ship's capabilities in an operational environment. Ultimately, the Navy plans to have 10 of the ships available to military commanders around the world.

The Navy says its missions could include transporting tanks, carrying a containerized portable hospital or supporting disaster-relief operations. The ship has 20,000 square feet of cargo storage area and is also capable of landing helicopters. Other Navy ships are already capable of transporting people and equipment, but what sets apart the Spearhead and the others in its class being built is that it is designed for speed and to operate in small or damaged ports.

The expansive ship is a large catamaran made of aluminum that can carry 600 tons about 1,200 nautical miles.

"We can take pretty much whatever you can think of onboard here and rapidly reconfigure," said Capt. Douglas Casavant, master of the Spearhead.

The Spearhead has an average speed of about 40 miles per hour. By comparison, the Navy's amphibious transport dock that carries Marines and their equipment travels at about 24 miles per hour.

The Spearhead is also much more spacious in nearly every aspect than its warship counterparts, from its passageways and stairs to the more than 300 seats it has to transport people that provide more legroom than many first-class airline passengers will find.

The cost for the 10 joint high-speed vessels is about $1.5 billion, according to James Marconi, a spokesman for the Navy's Military Sealift Command, which owns the ships.

Casavant acknowledged that a ship built of aluminum is more vulnerable than warships made of steel, but he said that it could have other Navy ships escort it if it needed protection from adversaries, or to help clear mines from its path. He also said that security teams may come aboard the ship as needed, such as if it were to travel in pirate-infested waters. In a pirate scenario, he also said the ship's speed would make it difficult for anyone to catch.

The Spearhead is scheduled to be in European and African waters until May. After that, it will briefly return to Virginia Beach for a few weeks before heading toward Central and South America.

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Austal USA a livré le 4ème JHSV à l'US Military Sealift Command

Austal USA a livré le 4ème JHSV à l'US Military Sealift Command | Newsletter navale |

Austal USA has delivered the latest Joint High Speed Vessel (JHSV) to U.S. Military Sealift Command (MSC) in a ceremony in Mobile, Ala. on Monday, according to a statement from U.S. Naval Sea Systems Command (NAVSEA).

USNS Fall River (JHSV-4) is the fourth JHSV delivered to to MSC, following the completion of sea trials in July.

“Today the Navy received a tremendous asset,” said Strategic and Theater Sealift Program Manager Capt. Henry Stevens in the statement.
“The addition of Fall River to the fleet will enhance our forward presence and ability to bolster global security from the sea by quickly transporting significant resources to a wide array of geographic regions throughout the world in time of need.”

The fifth JHSV, Trenton (JHSV-5), will launch in the next few weeks, according to NAVSEA.

JHSV began as a joint Army and Navy Program until the Army left the ten-ship $2.5 billion program.

The aluminum catamarans can transport up to 600 tons of troops and gear. The ships displace 1,515-tons, can cruise at 35 knots at a range of 1,200 nautical miles.

The first ship, USNS Spearhead (JHSV-1) was accepted into service last year and has operated in the Mediterranean Sea. USNS Millinocket (JHSV-3) was part of the Rim of the Pacific 2014 (RIMPAC) exercise.

U.S. Southern Command is also interested in using the platform for drug interception mission.

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Austal USA est optimiste sur les perspectives d'achats de nouveaux JHSV par l'US Navy

Austal USA est optimiste sur les perspectives d'achats de nouveaux JHSV par l'US Navy | Newsletter navale |

The builder of the US Navy's (USN's) Joint High Speed Vessel (JHSV) is optimistic that a US Congress-mandated study being considered by lawmakers would encourage acquisition officials to increase the current programme of record of 10 vessels to as many as 18.

In the House version of the National Defense Authorization Act for fiscal year 2015, US legislators are requesting that the navy undertakes a study to determine the need, feasibility, and cost in buying eight additional JHSVs.

Austal USA is the prime contractor on the navy's USD1.6 billion programme to acquire 10 noncombatant catamarans designed to ferry personnel and equipment from a sea base to shore.

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US Navy : le JHSV 3 Millinocket construit par Austal USA a terminé ses esais d'acceptation

US Navy : le JHSV 3 Millinocket construit par Austal USA a terminé ses esais d'acceptation | Newsletter navale |

JANUARY 14, 2014 — Joint High Speed Vessel USNS Millinocket (JHSV 3) successfully completed Acceptance Trials (AT) on January 9, 2014, in the Gulf of Mexico. The trials involved the performance of intense comprehensive tests by the Navy while underway, which demonstrated the successful operation of the ship's major systems and equipment.  This is the last significant milestone before delivery of the ship, which is expected in late January.  

The vessel is the third of ten JHSVs that Austal has been contracted by the Navy to build in its Mobile, AL, shipyard. 

The Navy selected Austal as the prime contractor for this $1.6 billion contract in 2008. Austal's teaming partner, General Dynamics Advanced Information Systems (a business unit of General Dynamics) is the ship systems integrator, responsible for the design, integration and testing of the navigation and communications systems, C4I, and aviation systems.

"The completion of this major milestone for the third vessel in the JHSV Spearhead-class further demonstrates the maturity of the JHSV program," said Austal USA President Craig Perciavalle. "With the first two ships delivered, the third making final preparations for delivery now, and two more under construction at this time, this program is progressing well, evidence of Austal's success in executing its production plan for efficient serial production."

"I am so proud of the talented shipbuilders here, especially in knowing we were able to fly a broom on the mast when they returned signifying a clean sweep of trials events,"  said Mr. Perciavalle. "The entire team should be so proud of this significant accomplishment that was executed so well."

The 103-meter JHSV will provide rapid intra-theater deployment/transportation of personnel, equipment and supplies. The vessel will support military logistics, sustainment and humanitarian relief operations at speeds of up to 43 knots. The JHSV will transport medium-size operational units with their vehicles, or reconfigure to provide troop transport for an infantry battalion, allowing units to transit long distances while maintaining unit integrity. The vessel also supports helicopter operations and has a slewing vehicle ramp on the starboard quarter which enables use of austere piers and quay walls, common in developing countries. A shallow draft (under 4 meters) will further enhance theater port access.

USNS Millinocket (JHSV 3) will soon be followed by USNS Fall River (JHSV 4) which Austal christened and launched this month. Fabrication and assembly is well underway on USNS Trenton (JHSV 5) and the first aluminum for USNS Brunswick (JHSV 6) will be cut in mid-January.

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