En realidad se van a construir bastantes mas. Y ahora parece ser que han vuelto a barajar la idea de construir ambos modelos... En realidad, previstos hay mas de medio centenar. Ahora toca saber quien se lleva el gato al agua, o como será el reparto si al final escogen a las dos versiones. Está entretenido el programa LCS con tanto vaiven...
Alejandro Farnesio escribió:A su vez, del destructor Zumwalt son dos unidades, ¿verdad?
Tres, al final se acabo por aprobar una tercera unidad.
En realidad, todo eso esta en el aire y lo mas probable es que ambos proyectos (LCS y ZUMWALT) se vayan por el sumidero de los recortes.
\\"Un cerdo que no vuela solo es un cerdo\\"
Marco Porcellino.
En realidad se van a construir bastantes mas. Y ahora parece ser que han vuelto a barajar la idea de construir ambos modelos... En realidad, previstos hay mas de medio centenar. Ahora toca saber quien se lleva el gato al agua, o como será el reparto si al final escogen a las dos versiones. Está entretenido el programa LCS con tanto vaiven...
Alejandro Farnesio escribió:A su vez, del destructor Zumwalt son dos unidades, ¿verdad?
Tres, al final se acabo por aprobar una tercera unidad.
En realidad, todo eso esta en el aire y lo mas probable es que ambos proyectos (LCS y ZUMWALT) se vayan por el sumidero de los recortes.
De hecho los Zumwalt ya se han cancelado. Pero se fabricaran 3. Hay fondos ya destinados para ello y, los dos primeros, al menos, ya se han empezado a construir. Es muy dudoso que, una vez empezado el trabajo en los buques, salga mas barato dejar de construir y afrontar las compensaciones a los astilleros, que terminar los buques...
Y por otra parte, los LCS. Que desde que empezó el programa han estado en la picota y sin embargo, hay previstos fondos para unos pocos mas de los tres que están en el agua y del cuarto que está a punto de botarse...
Y va pasando el tiempo y se siguen botando barcos y sigue sin llegar la tan "ansiada" orden de cancelar el programa.
A España, servir hasta morir.
FUERZA Y HONOR \\"Soy una hoja al viento, mirad como vuelo\"\
ATLANTIC OCEAN (Dec. 5, 2010) Capt. Dan "Dozer" Dwyer, commanding officer of Strike Fighter Squadron (VFA) 106, lands an F/A 18C Hornet aboard the aircraft carrier USS George H.W. Bush (CVN 77). The aircraft is painted in commemoration of the Centennial of Naval Aviation. George H.W. Bush is conducting training operations in the Atlantic Ocean. (U.S. Navy photo by Mass Communication Specialist 3rd Class Nicholas Hall)
We, the people...
¡Sois todos un puñado de socialistas!. (Von Mises)
U.S. Navy’s Record-Breaking Electromagnetic Railgun Shoots Projectiles at Mach 7
In a fascinating display of futuristic weaponry, the U.S. Navy broke world records today with a railgun, a device that sent projectiles hurtling around a range at speeds of up to Mach 7 and up to 33 megajoules of energy transfered to the projectile.
This kind of weapon requires no explosion to get a projectile from point A to point B. Rather, a railgun uses an electromagnetic current to accomplish the task, and it does so at previously unimaginable velocities.
The projectile, which is conductive, travels along a pair of metal rails as an electric current is passing through the projectile. The rails generate a magnetic field, which interacts with the current to move the projectile at extremely high velocities.
In terms of military use, a railgun projectile is faster than a guided cruise missile, doesn’t require on-board explosives, is much cheaper to use and can hit targets substantially farther away. In fact, the Navy hopes to increase the railgun’s current 100-mile range to 200 miles in the future.
The Navy has been working on railgun technology since around 2005. In 2006, it tested an 8-megajoule firing; in 2008, a 10.64-megajoule firing was conducted. Today’s test, which was conducted at the Naval Surface Warfare Center Dahlgren Division in Dahlgren, Virginia, broke all previous tests in a 33-megajoule firing.
Railgun technology is definitely still in the testing phase; we probably won’t see railgun aboard Navy ships for at least the next 10 to 15 years.
In a fascinating display of futuristic weaponry, the U.S. Navy broke world records today with a railgun, a device that sent projectiles hurtling around a range at speeds of up to Mach 7 and up to 33 megajoules of energy transfered to the projectile.
This kind of weapon requires no explosion to get a projectile from point A to point B. Rather, a railgun uses an electromagnetic current to accomplish the task, and it does so at previously unimaginable velocities.
The projectile, which is conductive, travels along a pair of metal rails as an electric current is passing through the projectile. The rails generate a magnetic field, which interacts with the current to move the projectile at extremely high velocities.
In terms of military use, a railgun projectile is faster than a guided cruise missile, doesn’t require on-board explosives, is much cheaper to use and can hit targets substantially farther away. In fact, the Navy hopes to increase the railgun’s current 100-mile range to 200 miles in the future.
The Navy has been working on railgun technology since around 2005. In 2006, it tested an 8-megajoule firing; in 2008, a 10.64-megajoule firing was conducted. Today’s test, which was conducted at the Naval Surface Warfare Center Dahlgren Division in Dahlgren, Virginia, broke all previous tests in a 33-megajoule firing.
Railgun technology is definitely still in the testing phase; we probably won’t see railgun aboard Navy ships for at least the next 10 to 15 years.
Cuando se solucionen "problemillas" como el desgaste y demás, el cañón de riel revolucionará la defensa de punto si se consigue el tiro rápido, y, si se alcanzan o superan esas distancias, ¿podrian volver las plataformas de artillería sin misiles?
Por España y el que quiera defenderla honrado muera; y el traidor que la abandone no tenga quien le perdone
ni en Tierra Santa cobijo, ni una cruz en sus despojos; ni las manos de un buen hijo para cerrarle los ojos.
Los cañones electromagneticos se enfrentan a un problema tremendo como defensa de punto: que los laseres van a ser mas baratos y mejores. Un railgun puede servir muy bien para lanzar cargas a distancias enormes, pero para disparos de cercania a la vista, las armas de energia dirigida van a ser mejores.
\\"Un cerdo que no vuela solo es un cerdo\\"
Marco Porcellino.
Tengo entendido que el gran problema de las armas de energía y las railgun es la inmensa cantidad de energía que deben producir para efectuar disparos.
The U.S. Navy cruiser Port Royal being refloated at Pearl Harbor in September 2009 after repairs from a grounding. The ship is back in the shipyard because of a new series of cracks in its superstructure. (Marshall Fukuki / U.S. Navy)
Barely a year after the U.S. Navy spent $40 million to fix the cruiser Port Royal after an embarrassing grounding, the ship is again out of action, back in a shipyard at Pearl Harbor, Hawaii. But this time it's not a damaged hull that's the problem. Rather, it's an issue that is plaguing all 22 cruisers in service: cracks in the aluminum superstructure. The Port Royal was operating in the Pacific Northwest in September when sailors discovered new cracks in the superstructure, including an eight-foot crack on the 06 level, one of the highest decks in the ship. Most of the cracks that appear on the Ticonderoga-class cruisers are being repaired during regular overhauls, but in this case the damage was enough to send the ship home to Pearl Harbor for yet another extended repair period. So far, the Navy has awarded $14 million to BAE Systems in Pearl to fix the Port Royal. The work package will include repairs to the bulkheads and deck around two gas turbine intakes; fuel oil storage tank top repairs; superstructure crack repairs; and removal and replacement of aluminum decking and plating. The work is expected to be finished in February. "We are dealing with a class-wide issue of superstructure structural issues," said Cmdr. Jason Salata, a spokesman for Naval Surface Forces in San Diego. "These are things we're seeing on other ships of this class." The Port Royal situation might be the worst case to date. "Most of the issues are being dealt with when the ships come in for a regular availability," or overhaul, said one source familiar with the situation. "This is the first one I know of where we specifically went in for repairs." The work is necessary, the source added, "to restore structural integrity of the ship." The problem, according to the Naval Sea Systems Command (NAVSEA), is the aluminum alloy used in the superstructure of the cruisers, which have steel hulls. "There have been various degrees of crack repair on every CG [guided-missile cruiser] in the past year," said Chris Johnson, a NAVSEA spokesman in Washington. "The decking is the most prevalent cracking area due to exposure to elevated temperatures caused by solar absorption and exhaust temperatures." More than 3,000 cracks have been found so far across the entire Ticonderoga class, which originally numbered 27 ships. Twenty-two of the ships remain in service, and Port Royal, commissioned in 1994, is the newest. Their superstructures are made of aluminum alloy 5456, a material used on numerous U.S. warships since 1958. The alloy, according to NAVSEA, relies on approximately 5 percent magnesium as an alloying element to develop strength. Over time, the magnesium leaches out of the material and forms a film, susceptible to stress-corrosion cracking in a marine environment. NAVSEA has developed more than 17 alterations to deal with the cracks. In late 2008, the service began evaluating a different welding technique called Ultrasonic Impact Treatment (UIT). The Port Royal was one of the test ships for the new technique, Johnson said, and the UIT procedure was applied to specific areas of the ship in 2009. "With the current state of the technology, it is only practical to use UIT in small areas," Johnson said in a written statement. "We believe it has potential, and are evaluating it as part of CG Aluminum Superstructure Task Force for future use." The task force was set up this year by NAVSEA - at the fleet's request - to develop and assess technically viable options, Johnson said. Results from the group's work are expected to appear next spring. Many sailors who have served on a Ticonderoga-class cruiser have stories to tell about the cracks, ranging from descriptions of cracked masts to leaking fuel tanks next to high-wattage electrical equipment. Solving the issue is a key element in making sure the ships remain effective and safe to operate to the end of their planned 35- to 40-year service lives. NAVSEA noted that the aluminum alloys used on the cruisers are not on the new littoral combat ships, which are built with commercial alloys 5083 and 6082. "While the Navy has no current experience with this alloy, it is in wide use on commercial craft," Johnson said. The Port Royal has seen little service since returning from its last deployment in June 2008. On Feb. 5, 2009, just after completing a three-month overhaul, the ship ran up on a reef just off the Honolulu airport, in clear sight of every aircraft taking off and landing at the airport, and visible from the beaches at Waikiki. The cruiser was refloated after three-and-a-half days on the reef and towed back to Pearl Harbor, where the commanding officer was relieved of his duties. The Port Royal's hull, propellers and sonar dome received severe damage, and shipyard repairs continued into this year. After visiting Seattle in early August for Seafair, the cruiser caused a public relations stir when its wake washed up oysters on shore while operating near the Hood Canal. Despite these problems, the ship apparently has not missed a deployment. "Port Royal has not missed a scheduled deployment as a result of these repairs," Salata said. "She will continue her training and deploy in 2011."
No sabía yo que tuviesen tántos problemas los Tico´s...., y hay que reconocer que ya tienen unos años encima estos barcos, pero justo el Port Royal ...., la unidad mas joven de esta clase habiendo sido activado en el 94.
Saludos
"That men do not learn very much from the lessons of history is the most important lesson history has to tell."
Aldous Huxley 1894-1963
galix escribió:Tengo entendido que el gran problema de las armas de energía y las railgun es la inmensa cantidad de energía que deben producir para efectuar disparos.
Saludos
Sumado al consumo de los radares... esa era una de las grandes pegas del DD(X) y hay un lobby fuerte en el Congreso para hacer que los CG(X) sean buques nucleares.
Imperialista entregado a las Fuerzas Capitalistas del Mal
The U.S. Navy cruiser Port Royal being refloated at Pearl Harbor in September 2009 after repairs from a grounding. The ship is back in the shipyard because of a new series of cracks in its superstructure. (Marshall Fukuki / U.S. Navy)
Barely a year after the U.S. Navy spent $40 million to fix the cruiser Port Royal after an embarrassing grounding, the ship is again out of action, back in a shipyard at Pearl Harbor, Hawaii. But this time it's not a damaged hull that's the problem. Rather, it's an issue that is plaguing all 22 cruisers in service: cracks in the aluminum superstructure. The Port Royal was operating in the Pacific Northwest in September when sailors discovered new cracks in the superstructure, including an eight-foot crack on the 06 level, one of the highest decks in the ship. Most of the cracks that appear on the Ticonderoga-class cruisers are being repaired during regular overhauls, but in this case the damage was enough to send the ship home to Pearl Harbor for yet another extended repair period. So far, the Navy has awarded $14 million to BAE Systems in Pearl to fix the Port Royal. The work package will include repairs to the bulkheads and deck around two gas turbine intakes; fuel oil storage tank top repairs; superstructure crack repairs; and removal and replacement of aluminum decking and plating. The work is expected to be finished in February. "We are dealing with a class-wide issue of superstructure structural issues," said Cmdr. Jason Salata, a spokesman for Naval Surface Forces in San Diego. "These are things we're seeing on other ships of this class." The Port Royal situation might be the worst case to date. "Most of the issues are being dealt with when the ships come in for a regular availability," or overhaul, said one source familiar with the situation. "This is the first one I know of where we specifically went in for repairs." The work is necessary, the source added, "to restore structural integrity of the ship." The problem, according to the Naval Sea Systems Command (NAVSEA), is the aluminum alloy used in the superstructure of the cruisers, which have steel hulls. "There have been various degrees of crack repair on every CG [guided-missile cruiser] in the past year," said Chris Johnson, a NAVSEA spokesman in Washington. "The decking is the most prevalent cracking area due to exposure to elevated temperatures caused by solar absorption and exhaust temperatures." More than 3,000 cracks have been found so far across the entire Ticonderoga class, which originally numbered 27 ships. Twenty-two of the ships remain in service, and Port Royal, commissioned in 1994, is the newest. Their superstructures are made of aluminum alloy 5456, a material used on numerous U.S. warships since 1958. The alloy, according to NAVSEA, relies on approximately 5 percent magnesium as an alloying element to develop strength. Over time, the magnesium leaches out of the material and forms a film, susceptible to stress-corrosion cracking in a marine environment. NAVSEA has developed more than 17 alterations to deal with the cracks. In late 2008, the service began evaluating a different welding technique called Ultrasonic Impact Treatment (UIT). The Port Royal was one of the test ships for the new technique, Johnson said, and the UIT procedure was applied to specific areas of the ship in 2009. "With the current state of the technology, it is only practical to use UIT in small areas," Johnson said in a written statement. "We believe it has potential, and are evaluating it as part of CG Aluminum Superstructure Task Force for future use." The task force was set up this year by NAVSEA - at the fleet's request - to develop and assess technically viable options, Johnson said. Results from the group's work are expected to appear next spring. Many sailors who have served on a Ticonderoga-class cruiser have stories to tell about the cracks, ranging from descriptions of cracked masts to leaking fuel tanks next to high-wattage electrical equipment. Solving the issue is a key element in making sure the ships remain effective and safe to operate to the end of their planned 35- to 40-year service lives. NAVSEA noted that the aluminum alloys used on the cruisers are not on the new littoral combat ships, which are built with commercial alloys 5083 and 6082. "While the Navy has no current experience with this alloy, it is in wide use on commercial craft," Johnson said. The Port Royal has seen little service since returning from its last deployment in June 2008. On Feb. 5, 2009, just after completing a three-month overhaul, the ship ran up on a reef just off the Honolulu airport, in clear sight of every aircraft taking off and landing at the airport, and visible from the beaches at Waikiki. The cruiser was refloated after three-and-a-half days on the reef and towed back to Pearl Harbor, where the commanding officer was relieved of his duties. The Port Royal's hull, propellers and sonar dome received severe damage, and shipyard repairs continued into this year. After visiting Seattle in early August for Seafair, the cruiser caused a public relations stir when its wake washed up oysters on shore while operating near the Hood Canal. Despite these problems, the ship apparently has not missed a deployment. "Port Royal has not missed a scheduled deployment as a result of these repairs," Salata said. "She will continue her training and deploy in 2011."
No sabía yo que tuviesen tántos problemas los Tico´s...., y hay que reconocer que ya tienen unos años encima estos barcos, pero justo el Port Royal ...., la unidad mas joven de esta clase habiendo sido activado en el 94.
Saludos
Buena noticia, pero el problema viene de lejos, basicamente se resume en que es demasiado barco para tan poco casco.
Pero eso de grietas de 8 pies es nuevo!
"Pobres desgraciados, otra vez nos tienen rodeados"
NO me había fijado del nuevo uniforme de trabajo de la armada, me llega.
When I open my eyes
I see soldiers in the fields
Dead bodies on the ground
There are children inbetween
Explosions shock the land
And the evil shows its face
The one called Hister rises
This is the fall of grace...
By CHRISTOPHER P. CAVAS Published: 20 Dec 2010 13:33
The U.S. Navy's new electro-magnetic aircraft launch system (EMALS) - perhaps the most critical unproven element in the first new aircraft carrier design in four decades - launched its first aircraft Dec. 18, manufacturer General Atomics has confirmed.
The launch of an F/A-18E Super Hornet supersonic strike fighter took place at Naval Air System Command's facility at the Naval Air Engineering Station Lakehurst, N. J., Navy officials confirmed. One launch was conducted on Dec. 18, while several more launches took place the following day.
Related Topics Americas Air Warfare A lot is riding on the successful development of the new launch system. EMALS is a critical piece of technology that will be installed in the new Gerald R. Ford-class aircraft carriers, the first of which is now under construction. If the system isn't ready in time, the Navy would have to revert to older steam catapults to launch aircraft from the ships, a move which would mean costly delays and re-designs.
An official announcement by the Navy confirming the launches is expected to be released Dec. 20.
More than 722 launches of test loads have been made at the Lakehurst facility this year, at speeds up to 180 knots, the highest end-speed requirement for the system.
Other Navy carrier aircraft, including C-2 carrier-on-board-delivery (COD) and T-45 Goshawk jet trainers, will be part of the EMALS test program in 2011, said Rob Koon, a spokesman for NAVAIR.
Alejandro Farnesio escribió:A su vez, del destructor Zumwalt son dos unidades, ¿verdad?
...., la unidad mas joven de esta clase habiendo sido activado en el 94.
