messages : 35 Inscrit le : 22/03/2008 Localisation : France Nationalité :
Sujet: US Navy Sam 22 Mar - 16:06
Rappel du premier message :
Bonjour/Bonsoir ;
Alors, je vous présente quelques portes avions USA :
USS Carl Vinson
USS Harry S Truman
USS Nimitz
USS Eisenhower
USS George H. W. Bush
USS Kity Hawk
USS Wasp
USS Tarawa
USS Saipan
_________________ Marocain, et fier de l'être.
Auteur
Message
MAATAWI Modérateur
messages : 14757 Inscrit le : 07/09/2009 Localisation : Maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Mer 1 Aoû - 11:32
Citation :
Navy Wins Big As Senate Approps Adds $4.2B To Keep Nine Ships, Add Destroyer, Fund Attack Sub
CAPITOL HILL: Those nine warships the Navy planned to retire in the face of the budget crunch? Fuggedaboutit. They're back in, if the Senate Appropriations Committee has anything to say about it.
Helicopters flew the guys who killed Osama bin Laden and have gotten beaten up flying in Afghanistan and Iraq? We're on it with $700 million to "modernize, replace combat losses, or procure new helicopters.
Patriot PAC-3 missiles, handy in any conflict with Iran, win an additional $194 million.
That ding dong who apparently set the fire on the USS Miami, causing some $500 million in damage? Well, we're sort of on it, with an extra $150 million in our bill.
"We" are the members of the Senate Appropriations defense subcommittee and Sen. Daniel Inouye, chairman, and his merry crew of cardinals.
The nine Navy ships the service paned to retire before the end of their service lives are mostly cruisers, an increasingly endangered class of ships in today's fleet. Attacks subs, boomers, destroyers, carriers and LCS all seem immune to cuts. The Navy planned to retire four cruisers in 2013. The next year three cruisers and two dock landing ships would head to the scrap heap or to foreign navies. This will cost "nearly" $2.4 billion to man, operate, equip and modernize these ships," Sen. Inouye said in his opening remarks.
The House appropriators didn't go quite as far. They saved three cruisers, perhaps leaving the rest for next year and expecting their shipyard-heavy Senate colleagues to take care of the fourth cruiser.
In a final slap at the Air Force, the bill includes $800 million to keep National Guard and Reserve force structure in place. We won't go into much detail about how ticked off Congress was about these proposed Air Force cuts. But those with a long memory will remember how the Guard handily defeated efforts by the Army to cut two divisions back in the late 1990s. Note to Air Force Secretary Mike Donley: just because it makes sense, doesn't mean Congress is going to like it or let you do it. Next time, either stroke them a lot more or tell them nothing and spring it on em, a la Bill Gates.
The Senate bill does not include any money to rescue the Global Hawk Block 30s. It does include $21.5 million for the F-22's backup oxygen systems. For Special Operations Command, they've thrown in $142 million for "high definition video sensors." My favorite add-back is for the Joint Air to Ground Missile (JAGM), which I think (in the absence of details from the committee) will keep running on funds left over from 2011 and 2012. House authorizers also approved $10 million for the program, while their appropriator kin were not so kind. Expect the Senate to win on this one.
The Senate bill does not contain earmarks, or at least nothing that technically qualifies as an earmark.
defense.aol.com
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
augusta General de Division
messages : 8293 Inscrit le : 18/08/2010 Localisation : canada Nationalité : Médailles de mérite :
Sujet: Re: US Navy Mer 1 Aoû - 12:07
Citation :
Navy: E-2 Needs New Radar Jul. 31, 2012 - 10:12AM | By Dan P. Taylor As troops entered Iraq in 2003 to begin their quest to oust Saddam Hussein, they encountered a problem: Despite the massive coalition airpower available, the critical connection between the troops on the ground and forces in the air was missing.
“The first few days of the Operation Iraqi Freedom kickoff, there were just a ton of assets flying: bomb-droppers that had ordnance, had fuel, all in limited and varying degrees, and ground forces advancing rapidly that needed air support,” said Capt. Donald May, a U.S. Navy E-2 Hawkeye pilot and the E-2C/D requirements officer at the Pentagon. “There was a missing link in connecting what forces on the ground needed and what capability [the coalition] had.”The E-2Cs were pressed into service over land as a sort of headquarters in the sky to link troops to the intelligence, surveillance and reconnaissance (ISR) or strike aircraft they needed. The E-2s supplemented the Air Force’s E-3 Airborne Warning and Control System planes and the E-8 Joint Surveillance Target Attack Radar System aircraft, which detected and tracked moving ground vehicles.
“It was the perfect role for the E-2C to jump into,” May said. “The power of the plane is in the air crew and the ability to command and control, see the battlespace in the full 360 degrees and get the mission accomplished.”
But there was a drawback to the E-2Cs. They were developed during the Cold War to scan the waters for enemy ships and provide sea-based command and control for a strike group. Their radars weren’t meant for missions over land, so they had a hard time picking out low-flying aircraft and missiles from the clutter caused by terrain and buildings. For the Navy, the experience with the E-2Cs was vindication of an effort then in its early stages to develop a radar that would be less susceptible to ground clutter.
That effort is about to come to fruition. Upgraded versions of the E-2Cs, called the E2-D Advanced Hawkeyes, are scheduled to begin flying the new radar operationally in 2014.
The same year as the run to Baghdad, the Navy awarded Northrop Grumman a contract to design the E-2D, and the Navy flew the aircraft for the first time in August 2007. The Navy accepted the delivery of the first E-2D in July 2010. The first test squadron is undergoing initial operational test and evaluation, which will wrap up later this year and pave the way for large-scale production of the aircraft.
When the first E-2D crew starts conducting missions as early as October 2014, the Navy hopes it will be able to improve on what the E-2C does now: patrolling the skies with information on what aircraft are available, where they are and what ordnance they are carrying. Today, troops who need close air support can call the E-2C’s crew through a special frequency to let them know, for example, that they’re under attack from enemy forces in armored vehicles. The Hawkeye crew can then direct the appropriate combat aircraft to assist the troops. E-2C air crews played a pivotal role in making sure the right data, coordinates, surveillance and other information made it to those who needed it and “profoundly turned around the whole war,” May said.
The efforts of the E-2C in overland missions showed the Navy just what utility such an aircraft and its crew can provide, which is why the service is in the midst of spending $17.5 billion on a fleet of 75 E-2D Advanced Hawkeyes that will possess radar better equipped for the overland environment. While the E-2D will not immediately replace the E-2C, the Navy does plan to phase out the E-2C fleet sometime in the 2020s, May said.
The E-2C proved to be a major asset in Iraq, but the Navy hopes the new E-2D radar will do an even better job in the highly cluttered overland environment.
“If we don’t connect the dots, all the bomb-droppers come back with all the bombs on their wings,” May said.
The E-2D’s Lockheed Martin-built APY-9 radar is “clutter-agnostic” compared with the mechanical version on the E-2C, May said, meaning that it can cut through the numerous signatures that show up on radar in overland and littoral environments to identify the real threats, primarily in the air. While high-flying aircraft are not difficult to track for the E-2C in any environment, low-flying aircraft are much more difficult to pick up with so much ground-based clutter in the field of view of the E-2’s crew.
The Navy is currently conducting flight tests for the E-2D. So far, manufacturer Northrop Grumman has built eight of them, which are now either in test squadrons or fleet replacement squadrons for training purposes.
Northrop Grumman deferred comment to the Navy.
The Navy hasn’t shied away from continuing to use the E-2C in that role in the many years since the initial invasion. Although the Navy designed the aircraft to be a blue-water, command-and-control asset, commanders in the field have used it much more in littoral and overland environments, May said.
Richard Aboulafia, an aviation analyst with the Teal Group, said the utility of the E-2 has proven itself a popular export product. France, Japan, Mexico, Singapore, Israel, Taiwan and Egypt all fly the E-2C, and the United Arab Emirates and India have expressed interest in the E-2D. Taiwan’s decision to acquire E-2s in 1995 was a particularly good one for the nation, Aboulafia said.
“That’s probably the quietest, least-remarked-upon, but greatest advancement to Taiwan’s military,” he said.
The E-2 has proven that even though it was born out of the Cold War era for a blue-water Navy, its capability is indispensable for modern navies, he argued.
“I can’t imagine a carrier battle group or any other kind of big Navy presence having much of a chance without it,” Aboulafia said. “Look at Britain. Back in the Falklands [War in 1982], that would’ve been over in five minutes with E-2s. ... No matter what you’re doing with the Navy, you need a system like this: littorals, power projection in big blue water, even peace-keeping, no-fly-zone enforcement.
“It just goes to show the broad utility of the antique Cold War systems you still have with relatively straightforward changes to software and hardware,” he continued. “[Today], you’re stuck with a lot of counterinsurgency equipment that’s useless, but ... big power equipment like [E-2] has very broad utility.”
And despite the recent overland missions, the E-2C still gets heavy use in the blue-water zones as well, May said.
“There is some, but limited, situational awareness until an E-2 gets out there with a combination of active and passive sensors and communications suites,” May said. “Anything in the air or on the surface of the ocean, we communicate back via voice and data link. We allow decision-makers to know what’s out there.”
Initially, the Navy will be supplementing — not replacing — the E-2C fleet with the E-2Ds. E-2Cs will continue to fly missions for a very long time, May said.
“E-2C will have a role as long as it’s in the fleet,” he said. “The E-2D will have a much more prominent role.”
One capability the E-2D crews will have at their disposal is the ability to conduct integrated air missile defense, which will make it an effective asset in defending the sea base. “That’s an area where E-2D brings out its capabilities in the fullest sense,” May said.
The aircraft will look nearly identical to the E-2C from the outside, but the radar will be miles ahead in terms of capability and the crew will be able to operate more efficiently, he added.
“The radar is the No. 1 capability enhancement,” he said. “My opinion is that the next-best capability enhancement is the crew of five: three naval flight officers running the weapon systems in back, and two pilots up front.”
While the E-2C also has a crew of five, the difference is that one of the pilots in an E-2D can operate as a tactical fourth operator, taking advantage of a digital glass cockpit to switch the display to a tactical one and contribute to the mission at hand.
“When we were up on station, we were usually shorthanded in an E-2C,” May said. “Now we’ll have a fourth operator, which is huge.”
The E-2D also will serve as the centerpiece of the Cooperative Engagement Capability, a sensor-netting system that allows ships and aircraft in a strike fighter group to pool their collective radar and sensor data together to create a detailed picture of the environment around them, sharing this information through secure frequencies. The Navy awarded Northrop Grumman an $8.8 million contract modification on April 24 for AN/SPQ-9B CEC interface kits and antenna group upgrade kits.
“It allows a vastly different set of options to disperse the forces by using the Cooperative Engagement Capability,” May said. “It allows a dispersion of forces and use of other tactics against the more stressing threats out there. The latest E-2C variants can and do use it, but [crews] will be able to fully use it once E-2D is there because its sensor will contribute in a much more profound way.”
Naval Air Systems Command said in a May 4 statement provided by spokeswoman Marcia Hart that the capability was progressing on schedule.
“Collaboration across program offices and with industry partners has resulted in an aggressive schedule to complete successful integration of the CEC system into the E-2D aircraft,” the statement reads.
NAVAIR said CEC will allow sensor data to not only flow freely between assets, but also extend the range at which a ship can engage hostile missiles to well beyond its own radar horizon.
“This provides CEC-equipped ships in the battle group the opportunity to significantly improve their ability to engage challenging threat missiles by giving each ship a common, accurate picture,” NAVAIR stated.
Four E-2D Advanced Hawkeyes are undergoing initial operational test and evaluation as part of Air Test and Evaluation Squadron One. The evaluation should wrap up in the fourth quarter of this fiscal year, according to the NAVAIR statement.
The most significant concern for the program has been its radar, which will be electronically scanning rather than mechanical, and has been less reliable than hoped in testing. E-2D is reporting an improved reliability rate of 71 hours for the radar, but that figure is still short of the 81 hours required prior to a full-rate production decision, which the program expects to achieve by December, according to a March report by the Government Accountability Office’s annual assessment of major projects. Prior to the start of the test and evaluation in February, program experts and aircrew from test and evaluation squadrons flew two E-2D aircraft at Naval Air Station Patuxent River in Maryland and Naval Base Ventura County in California. They observed radar and mission systems performance in both land and maritime environments, according to the NAVAIR statement. The E-2D test team collected data that will be critical to making the Advanced Hawkeye available once it arrives in the fleet.
However, Teal Group analyst Aboulafia said it shouldn’t be a major worry for the program.
“It’s a major change going from mechanical to an electronically scanned radar,” he said. “Will they get it right? Sure, they’ll get it right. It’s a matter of time.”
— Dan P. Taylor is managing editor of Inside the Navy. http://www.defensenews.com/article/20120731/C4ISR02/307310011/Navy-E-2-Needs-New-Radar?odyssey=mod|newswell|text|FRONTPAGE|p
MAATAWI Modérateur
messages : 14757 Inscrit le : 07/09/2009 Localisation : Maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Jeu 2 Aoû - 10:02
Citation :
USS Abraham Lincoln Concludes Eight-Month Deployment
NORFOLK, Va. (NNS) -- The Nimitz-class aircraft carrier USS Abraham Lincoln (CVN 72) is scheduled to arrive in its new homeport at Naval Station Norfolk Aug. 7, following an eight-month deployment to the U.S. Navy's 5th, 6th and 7th Fleet areas of responsibility.
Commanded by Capt. John D. Alexander, Lincoln departed Naval Station Everett, Wash., her home since January 1997, in December 2011 for a scheduled change-of-homeport deployment to Virginia for a four-year refueling complex overhaul (RCOH).
During the RCOH period, Lincoln's nuclear reactors will be refueled, the ship's combat and communication systems will be upgraded and modernized, and the hull, mechanical and electrical systems will be overhauled.
Lincoln deployed as the flagship for Carrier Strike Group (CSG) 9, commanded by Rear Adm. Mike Shoemaker. Carrier Strike Group (CSG) 9 is comprised of Carrier Air Wing (CVW) 2, Destroyer Squadron (DESRON) 9, guided-missile cruiser USS Cape St. George (CG 71), and guided-missile destroyers USS Momsen (DDG 92) and USS Sterett (DDG 104).
navy
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
augusta General de Division
messages : 8293 Inscrit le : 18/08/2010 Localisation : canada Nationalité : Médailles de mérite :
Sujet: Re: US Navy Jeu 2 Aoû - 10:06
Citation :
New Problems Found on Avondale Ships Aug. 1, 2012 - 06:31PM | A new issue involving improperly installed bolts has emerged in the latest ships built by the Avondale shipyard near New Orleans, delaying the delivery of one ship and affecting another.
Similar problems were discovered in 2010 among most of the ships of the LPD 17 San Antonio-class, 26,000-ton amphibious ships of an advanced design under construction by Huntington Ingalls Industries (HII) for the U.S. Navy.
The LPD 17s have a long history of problems, beginning with multiple issues on the San Antonio, delivered to the Navy in 2005. The shipbuilder and the Navy have been struggling ever since to fix problems on each ship in the class and improvements have been seen on all subsequent ships.
The latest problems were discovered in mid-July on the Somerset, a ship launched in April and christened on July 28. When an inspector noticed the bolts that hold the main engine frames to foundations on the ship’s hull appeared to be improperly installed, further inspections were ordered on the Anchorage, a ship that was on the verge of being delivered to the Navy.
More bad bolts were discovered on the Anchorage, causing the Navy to delay accepting the ship from the shipbuilder and the movement of the crew on board.
“An Ingalls machinist discovered a dimensional issue with some fitted bolts and it was reported to the Navy the week of July 16,” Beci Brenton, a spokesperson for Huntington Ingalls, said Aug. 1 in an email statement about the problems on the Anchorage.
“The discrepancies are related to the fitted bolts’ ability to withstand shear forces during a shock event; there are no issues with fatigue loading or normal operation of the systems.
“Initial inspections indicate a high percentage of the bolts are compliant with the specification and do not need replacement,” Brenton continued in the statement. “All non-compliant bolts will be replaced. We have all the material on hand to complete the repairs and we are currently evaluating the progress on bolt replacement to assess if there will be an impact to sail away.”
Sail away is the point at which the ship leaves the shipyard and heads to its new homeport. In the case of the Anchorage, the ship is scheduled to leave in October for her base in San Diego.
The ship had been scheduled to be delivered to the Navy on July 23 — a moment when legal custody of the ship transfers from the shipbuilder to the U.S. government — and the crew would have moved aboard immediately after a signing ceremony.
Delivery of the Anchorage now has been delayed until September, Brenton said. There is no word yet on a new sail away date.
The discovery of new bolt problems on the two ships came as a shock to Ingalls and the Navy, which carried out successful sea trials on the Anchorage earlier this summer. Both the Navy and Ingalls thought they had avoided the sorts of fundamental problems that had plagued — to varying degrees — most of the earlier ships of the class.
The Navy’s Naval Sea Systems Command, or NAVSEA, confirmed the discrepancies with the fitted bolts were discovered after the acceptance trials were completed on June 22.
While certainly similar, it is not yet clear if the new fitted bolt issue is the same as the problems discovered in 2010.
Both the Navy and HII continue to investigate the issue, and neither has issued a statement concluding a specific cause for the latest problems.
Problem Limited to Avondale The Anchorage is the seventh ship of the LPD 17 class, the Somerset is the ninth. The Avondale shipyard is scheduled to permanently shut down in early 2014 after the Somerset’s delivery, currently scheduled for the fall of 2013.
Ingalls Shipbuilding, a larger shipyard in Pascagoula, Miss., will build the rest of the LPD 17s. A $1.5 billion construction contract for an eleventh ship was just signed with the Navy on July 27.
The new problem is limited to ships built at Avondale, according to the Navy.
“The fitted bolt issue has been determined to be related to fitted bolts fabricated only at the Avondale facility in New Orleans,” NAVSEA said Aug. 1 in an email statement.
“Therefore, the issue potentially exists on ships that were built at the Avondale facility. HII and the Navy are developing inspection plans for the in-service ships to determine if similar discrepancies exist.”
In its statement, NAVSEA further described the issue.
“During the week of July 16, HII discovered and reported to the Navy possible issues with fitted bolts associated with propulsion system components (i.e., engines, main reduction gears and line shaft bearings), as well as steering and stern gate components.
“The HII/Navy team developed an engineering-based inspection and replacement plan and HII has begun the removal, inspection and replacement, as required, of selected fitted bolts which is expected to take about six weeks. The repair work schedule will not conflict with crew training or certification. The Navy plans to accept delivery of the ship once all bolts are inspected and replaced as needed.”
Navy and Ingalls engineers say the problem doesn’t immediately affect a ship’s operations but that, over time, stresses in the ship’s power train begin to throw the affected elements out of line, causing vibrations that can potentially wreck a ship if nothing is done.
Each of the ship’s four main propulsion diesel engines has 126 bolts, and the main reduction gear features 16 fitted bolts out of a total of 32.
Tolerances for the bolts reach thousandths of an inch.
Each bolt is custom-machined on a lathe to exactly fit the dimensions of each bolt hole, ensuring an exact fit.
messages : 14757 Inscrit le : 07/09/2009 Localisation : Maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Jeu 2 Aoû - 10:32
Citation :
Raytheon Awarded $51 Million to Produce New Rolling Airframe Missile
RAM Block 2 features new rocket motor and guidance improvements
15:15 GMT, August 1, 2012 TUCSON, Ariz. | The U.S. Navy has awarded Raytheon Company a $51.7 million contract for low rate initial production of the Rolling Airframe Missile Block 2. The contract includes options, which, if exercised, would bring the cumulative value of this contract to more than $105 million. RAM Block 2 features enhanced kinematics, an evolved radio frequency receiver, a new rocket motor, and an upgraded control and autopilot system.
"This next-generation RAM will enable U.S. and allied naval warfighters to defeat the more sophisticated threats emerging around the world today," said Rick Nelson, Raytheon Missile Systems' vice president of Naval Weapon Systems. "Through Raytheon's collaborative relationship with our German partner RAMSYS, we continue to improve and expand the capabilities of RAM."
The contract award follows a series of key milestones, including successful guided flight tests for RAM Block 2. The program is preparing for another intercept test later this year, as well as initiation of government developmental testing in support of fleet deployment.
"RAM has been fired in more than 300 flight tests with a 95 percent success rate," said Nelson. "We intend to bring the same or even greater reliability to RAM Block 2."
RAM
RAM is a supersonic, lightweight, quick reaction, fire-and-forget missile providing defense against anti-ship cruise missiles, helicopter and airborne threats, and hostile surface craft. For more than 35 years, the U.S. and Germany have worked together developing and maintaining RAM. Development, production work and funding are shared between Raytheon and RAMSYS.
defpro
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
augusta General de Division
messages : 8293 Inscrit le : 18/08/2010 Localisation : canada Nationalité : Médailles de mérite :
Sujet: Re: US Navy Jeu 2 Aoû - 10:44
Une bonne année pour Raytheon malgré la crise mondiale a khoya Maatawi
MAATAWI Modérateur
messages : 14757 Inscrit le : 07/09/2009 Localisation : Maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Ven 3 Aoû - 15:51
Citation :
Navy Aims for 5,600-mph Bullet To Shoot Down Missiles
The U.S. Navy is trying to develop an electrically fired, GPS-guided, 5,600-mph bullet that can shoot down missiles coming at a warship, Wired.com reported.
The hypersonic bullet would be used with a cutting-edge cannon known as the Electromagnetic Rail Gun, Wired.com reported, and the Navy’s Office of Naval Research also wants this guided bullet to be compatible with current naval artillery guns. The push is part of a program called Hyper Velocity Projectile, in which the Navy is trying to bolster its warships’ capabilities to shoot down missiles and fire munitions at miles-away enemies, according to Wired.com.
The navy wants the new bullets to be 24 inches long and weigh around 20 to 30 pounds and reach more than 30 miles. The bullets that will be used by rail guns are expected to reach even 200 miles.
The Navy has spent $240 million trying to develop rail guns and the effort is facing increasing congressional opposition. The Navy estimates rail guns could be mounted on warships in the early 2020s.
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
MAATAWI Modérateur
messages : 14757 Inscrit le : 07/09/2009 Localisation : Maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Mer 8 Aoû - 11:09
Citation :
US Warship Leaves Builder's Yard for Commissioning
The Navy's littoral combat ship, the future USS Fort Worth sails from Marinette Marine's shipyard for Galveston, Texas.
Fort Worth is the third littoral combat ship delivered to the Navy, and the second LCS of the steel, semi-planing, mono-hull Freedom variant is scheduled to be commissioned on Sept. 22, 2012.
Prior to sail-away, the Navy's Board of Inspection and Survey (INSURV) conducted acceptance trials aboard Forth Worth. INSURV found the ship to be "highly capable, well-built and inspection ready," and recommended the vessel be accepted.
A number of design changes have been incorporated in LCS 3 based on lessons learned from the first ship of class, USS Freedom (LCS 1). These changes are now part of the baseline design and will be incorporated into future ships of the class prior to construction.
The littoral combat ship is a high-speed, agile, shallow-draft, focused-mission surface combatant designed for operation in near-shore environments yet fully capable of open-ocean operation.
Fort Worth, a high-speed steel mono-hull ship, is designed to defeat asymmetric "anti-access" threats such as mines, quiet diesel submarines and fast surface craft.
The 387-foot Fort Worth will be outfitted with reconfigurable payloads, called mission packages, which can be changed over quickly, and focus on three mission areas: mine countermeasures, surface warfare and anti-submarine warfare.
marinelink
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
jonas General de Brigade
messages : 3370 Inscrit le : 11/02/2008 Localisation : far-maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Jeu 9 Aoû - 1:59
Citation :
USS Iowa fires a full broadside of nine 16-inch (410 mm)/50-caliber and six 5-inch (130 mm)/38 cal guns during a target exercise near Vieques Island, Puerto Rico, on 1 July 1984.
MAATAWI Modérateur
messages : 14757 Inscrit le : 07/09/2009 Localisation : Maroc Nationalité : Médailles de mérite :
Sujet: Re: US Navy Ven 10 Aoû - 13:47
Citation :
Construction begins on 11th LPD for US Navy
Work on the US Navy's 11th and final San Antonio-class amphibious transport dock ship LPD 27 has started at Huntington Ingalls Industries' (HII) shipbuilding division.
Ingalls LPD programme vice president Doug Lounsberry said: "Lessons learned and production improvements from all the previous LPDs have been incorporated into LPD 26 and are being rolled over into LPD 27."
Under the $1.5bn contract awarded recently to HII for detail design and construction of the LPD 27, fabrication work will be followed by keel laying currently scheduled to take place in the second quarter of 2013.
With a displacement capacity of 24,900t, the 684ft-long, 105ft-wide San Antonio-class ship can accommodate 800 troops and provide combat support for the US Navy and US Marine Corps.
“Lessons learned and production improvements from all the previous LPDs have been incorporated into LPD 26 and are being rolled over into LPD 27.” The frigate will be able to carry two Sikorsky CH-53E Sea Stallion helicopters, six Bell AH-1W Super Cobra helicopters, four Boeing Vertol CH-46 Sea Knight helicopters or two Boeing Bell MV-22 Osprey tilt rotor aircraft on its flight deck.
In addition, the vessel will feature enhanced fighting capabilities, such as advanced command-and-control suite, and increased lift-capabilities for carrying vehicles cargo. It will also help transport combat and support elements of marine expeditionary units and brigades.
Under the LPD 17 programme, the ships will replace the US navy's ageing LST 1179 Newport-class tank landing ships, LKA 113 Charleston-class amphibious cargo ships, and the Anchorage-class dock landing ships (LSD 36), as well as Austin-class ships (LPD 4).
The navy has received six of 11 LPDs to date, while the remaining vessels are currently under different stages of construction.
Delivery of the new vessel is scheduled for mid-2017.
www.naval-technology.com
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
Invité Invité
Sujet: Re: US Navy Dim 12 Aoû - 11:40
Citation :
Collision entre un destroyer américain et un pétrolier près du détroit d’Ormuz
dimanche 12 août 2012 - 12h04
Un destroyer lance-missiles américain est entré en collision dimanche avec un pétrolier japonais près du détroit d’Ormuz, a annoncé la Vème Flotte américaine, basée à Bahreïn, sans faire état de victime. La collision accidentelle est intervenue vers une heure du matin (22h00 GMT samedi) entre le USS Porter, qui mène des opérations de sécurité maritime dans le Golfe, et le pétrolier, a précisé dans un communiqué la Cinquième Flotte. (AFP).
augusta General de Division
messages : 8293 Inscrit le : 18/08/2010 Localisation : canada Nationalité : Médailles de mérite :
Sujet: Re: US Navy Dim 12 Aoû - 15:33
Comment deux navires peuvent entrer en collision avec toute la technologie embarquée à bord
Invité Invité
Sujet: Re: US Navy Dim 12 Aoû - 17:43
augusta a écrit:
Comment deux navires peuvent entrer en collision avec toute la technologie embarquée à bord
Oué
Ce destroyer est censé detecter tout objet s'approchant de lui de jour comme de nuit, quelque soit sa taille, sa vitesse et sa nature... Il est censé detecter les menaces assymétriques qui le visent, c'est à dire des vedettes rapides plus petites, plus discrètes, et plus manoeuvrantes qu'un pétrolier... Il est aussi censé detecter de jour comme de nuit des missiles encore plus petits et plus discrèts qu'une vidette, s'approchant à très haute vitesse, en rasant la surface de la mer et en manoeuvrant.
Si le système de vigilence de ce destroyer a loupé un Pétrolier (rien que ça ), il loupera tout le rest...
leadlord Colonel-Major
messages : 2787 Inscrit le : 10/07/2010 Localisation : montreal Nationalité : Médailles de mérite :
Sujet: Re: US Navy Lun 13 Aoû - 1:47
Ticonderoga a écrit:
augusta a écrit:
Comment deux navires peuvent entrer en collision avec toute la technologie embarquée à bord
Oué
Ce destroyer est censé detecter tout objet s'approchant de lui de jour comme de nuit, quelque soit sa taille, sa vitesse et sa nature... Il est censé detecter les menaces assymétriques qui le visent, c'est à dire des vedettes rapides plus petites, plus discrètes, et plus manoeuvrantes qu'un pétrolier... Il est aussi censé detecter de jour comme de nuit des missiles encore plus petits et plus discrèts qu'une vidette, s'approchant à très haute vitesse, en rasant la surface de la mer et en manoeuvrant.
Si le système de vigilence de ce destroyer a loupé un Pétrolier (rien que ça ), il loupera tout le rest...
faut pas croire toujours ce que on raconte ce que on sait c'est que un déstroyer a eux des dégâts , p-e que car c'est un pétroliers d'un pays plus que alliers il ya eu négligence humaine .
_________________ Pro rege, saepe, pro patria semper
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Sujet: Re: US Navy Lun 13 Aoû - 5:19
Les dommages sur l'USS Porter du a la collision avec le petrolier.
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Sujet: Re: US Navy Lun 13 Aoû - 11:57
ne serait ce pas plus tôt un C802 reçu à la tronche
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leadlord Colonel-Major
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Sujet: Re: US Navy Lun 13 Aoû - 13:12
FAMAS a écrit:
ne serait ce pas plus tôt un C802 reçu à la tronche
c'est bien ce que je pense que ils ont voulu camouflé sa , élection et tout le reste ...
_________________ Pro rege, saepe, pro patria semper
اقسم بالله العظيم ان اكون مخلصا لله و لملكي و ان اتفانى في خدمة وطني و دفع كل خطر يهدده و ان انفد اوامرقائدي الاعلى صاحب الجلالة
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Sujet: Re: US Navy Mer 15 Aoû - 15:45
FAMAS a écrit:
ne serait ce pas plus tôt un C802 reçu à la tronche
leadlord a écrit:
c'est bien ce que je pense que ils ont voulu camouflé sa , élection et tout le reste ...
Ci-dessous les photos de l'USS Porter après la collision:
Ce que je remarque: D'abord: 1/ Absence de trace de feu dans le lieu de l'imact.
Et pour ceux qui vont me rependre que le C802 qui touché la corvette isarelienne n'a pas explosé.
2/ Je remarque que la forme du centre de la partie déformée et les lignes de déformation sont en V (photo 1), ce qui évoque, à mon sens, un impact avec la pointe avant d'un gros navire. 3/ d'autres dégats et des déformations mineures se propagent sur une très large partie du navire (photo 2), ce qui évoque le fortement du destroyer avec un navire d'une masse plus imprtante.
Les photos, la 2eme est en HiRes.
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Sujet: Re: US Navy Mer 15 Aoû - 16:24
Voilà, je complete mon post plus haut, que j'ai fait à la va vite, par la même image on y ajoutant en rouge ce qui me semble être les lignes de déformation.
On voit bien qu'il s'agit de la collision avec la pointe avant d'un navire plus haut et plus lourd.
Northrop General de Division
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Sujet: Re: US Navy Mer 15 Aoû - 17:17
Oui c'est une collision.
L'accident a du avoir lieu a sortit de quai surement.
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Sujet: Re: US Navy Mer 22 Aoû - 15:04
Citation :
US Navy Begins Integrated Testing of JSOW C-1 Weapon
Released on Tuesday, August 21, 2012
POINT MUGU SEA TEST RANGE, Calif., Aug. 21, 2012 /PRNewswire/ -- The U.S. Navy has begun integrated testing (IT) of Raytheon Company's (NYSE: RTN) Joint Standoff Weapon (JSOW) C-1. During its first flight in IT, the JSOW C-1 was retargeted to strike a large moving ship target.
"This flight test further demonstrates that JSOW C-1 can receive third party target updates in-flight, retarget after release, and strike a precise point on a moving ship using the weapon's autonomous terminal seeker," said Cmdr. Samuel Hanaki of the U.S. Navy's Precision Strike Weapons Program Office. "The program remains on track for reaching initial operational capability in 2013."
The test presented two maneuvering ships (large and small) as potential targets. Before weapon release, a Navy F/A-18F Super Hornet targeted the smaller ship, and then handed off weapon control to a second Super Hornet also targeting the smaller ship. After release from the first Super Hornet, the JSOW C-1 was guided by the second Super Hornet toward the smaller maneuvering ship target located 90 kilometers from launch point.
While in flight, the JSOW was retargeted by the second Super Hornet to the larger maneuvering ship target. The JSOW provided weapon in-flight track and bomb hit indication status messages back to the controlling Super Hornet while successfully engaging the larger target ship. The test validated JSOW C-1's unique ability to be controlled, updated and retargeted as needed to eliminate its intended target.
"JSOW C-1 brings U.S. and allied warfighters the unique ability to engage moving ships as far as 100 kilometers away with an air-launched precision strike weapon," said Celeste Mohr, Raytheon Missile Systems' JSOW program director. "The 280 Raytheon employees in Tucson, Ariz., and the hundreds of partner-supplier employees across the U.S. worked hard to make this test a success and demonstrate JSOW C-1's ability as the newest and pre-eminent moving maritime target weapon."
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Sujet: Re: US Navy Dim 2 Sep - 15:27
uss-constitution
l'interieur
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Sujet: Re: US Navy Ven 14 Sep - 12:36
Citation :
The U.S. Navy will christen the Joint High Speed Vessel (JHSV)
WASHINGTON | The U.S. Navy will christen the Joint High Speed Vessel (JHSV) Choctaw County, named for three U.S. counties, located in Mississippi, Alabama and Oklahoma, which share the county's name, during a ceremony in Mobile, Ala., Sept. 15.
Secretary of the Navy Ray Mabus will deliver the ceremony's principal address.
Women from Ackerman High School's class of 1966, 29 in all, will serve as the ship's sponsors, with Theresa Pitts designated as the lead sponsor for the classmates. Ackerman High School is located in Choctaw County's town of Ackerman, Miss.
"I chose to name this joint high speed vessel after Choctaw County where core American values of hard work, putting family first, and giving back to your community are on constant display," said Mabus. "I could think of no better representatives of these values than the women of Ackerman High School's class of 1966. Each represents the best of the American spirit and our enduring American values. I am honored they accepted the invitation to serve as sponsors for this fine ship."
The 338 foot-long aluminum catamaran is being constructed by Austal USA in Mobile, Ala. Choctaw County and the eight other JHSVs under contract enable fast, intra-theater transportation of troops, military vehicles, supplies and equipment. Military commanders will have the flexibility to use the JHSV in a variety of roles, including supporting overseas contingency operations, conducting humanitarian assistance and disaster relief, supporting special operations forces and supporting emerging joint sea-basing concepts.
They can transport 600 short tons 1,200 nautical miles at an average speed of 35 knots and can operate in shallow-draft ports and waterways, providing U.S. forces added mobility and flexibility. The JHSVs also have an aviation flight deck to support day and night air vehicle launch and recovery operations. JHSVs have berthing space for up to 146 personnel and airline-style seating for up to 312.
Upon delivery to the U.S. Navy's Military Sealift Command (MSC), Choctaw County will be designated as a U.S. Naval Ship and will have a core crew of 21 civilian mariners who will operate and navigate the ship. The first four JHSVs, including Choctaw County, will be crewed by federally employed civil service mariners. The remaining six will be crewed by civilian contract mariners working for private shipping companies under contract to MSC. Military mission personnel will embark, as required, by the mission sponsors.
Information on JHSV is available online at http://www.navy.mil/navydata/fact_display.asp?cid=4200&tid=1400&ct=4.
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
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Sujet: Re: US Navy Lun 17 Sep - 12:18
Citation :
Navy chooses DRS to provide common display systems for ships, submarines, and aircraft
September 16, 2012
Posted by John Keller
WASHINGTON, 16 Sept. 2012. U.S. Navy leaders needed common military display systems for surface warships, submarines, and aircraft. They found their solution from the DRS Laurel Technologies segment of DRS Technologies Inc. in Johnstown, Pa.
The U.S. Naval Sea Systems Command in Washington awarded DRS Laurel a potential $23.5 million indefinite-quantity contract to provide Variant A of the Common Display Systems (CDS), a family of displays implemented across platform systems on Navy surface ships, submarines, and aircraft.
militaryaerospace.com
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
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Sujet: Re: US Navy Mar 18 Sep - 15:17
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Ingalls Shipbuilding Delivers Amphibious Transport Dock USS Anchorage (LPD 23)
Huntington Ingalls Industries announced today that its Ingalls Shipbuilding division has delivered the amphibious transport dock Anchorage (LPD 23) to the U.S. Navy. It is the seventh ship of the San Antonio (LPD 17) class built at Ingalls.
"Today is a testament to the hard work and outstanding performance by our LPD shipbuilding team," said Doug Lounsberry, vice president, LPD 17 Program. "Our dedicated shipbuilding professionals continue to improve on the complex design, construction and testing of each ship in this program. That diligent work lays the foundation necessary for sailors and Marines to accomplish their missions while deployed."
The ship recently completed U.S. Navy acceptance trials, with shipbuilders successfully accomplishing more than 200 tests on the ship during the sea trial period.
San Antonio class amphibious transport dock USS Anchorage (LPD 23), seventh ship of the class shown during builder's sea trials in May (Picture: Huntington Ingalls Industries)
Ingalls has now delivered seven ships in the class and has four more in various stages of development or construction. LPDs are built to be survivable and flexible. The complex, survivable ships enable the services to carry out their missions without constraints or additional assets.
The 11 ships of the LPD 17 class are a key element of the Navy's ability to project power ashore. Collectively, they functionally replace more than 41 ships (the LPD 4, LSD 36, LKA 113 and LST 1179 classes of amphibious ships), providing the Navy and Marine Corps with modern, sea-based platforms that are networked, survivable and built to operate with 21st century platforms, such as the MV-22 Osprey.
The LPD 17-class ships are 684 feet long and 105 feet wide and displace approximately 25,000 tons. Their principal mission is to deploy the combat and support elements of Marine Expeditionary Units and Brigades. The ships can carry up to 800 troops and have the capability of transporting and debarking air cushion (LCAC) or conventional landing crafts, augmented by helicopters or vertical take-off and landing aircraft such as the MV-22. The ships will support amphibious assault, special operations or expeditionary warfare missions through the first half of the 21st century.
www.navyrecognition.com
_________________ Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
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Sam 22 Mar - 16:06
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Le Prophéte (saw) a dit: Les Hommes Les meilleurs sont ceux qui sont les plus utiles aux autres
ne serait ce pas plus tôt un C802 reçu à la tronche
Posted by John Keller