roket_surf escribió:quien ha hablado de Chavez, mi comentario es generico.
....a mi ese tipo me parte de la risa. Es casi tan divertido como un partido de futbol.
But other people want their input too. They point out a few of the negatives of the US design. Firstly, it hasn't been built. We don't know its final cost, but it will be far more expensive than its rival, the (slightly smaller) Spanish F-100. This ship, just like the US design, is basically a platform to carry the Aegis anti-air combat system and does the same job. Unfortunately, it has fewer missiles (48 compared with 64) and only carries one ASW helicopter (compared with two on the US design). But the critical factor is cost. Three of the Spanish vessels could probably be constructed for about $2billion cheaper than their competitor. The Defence Materiel Organisation, which will have to build the ships, apparently prefers this option.
The other advantage of the Spanish ships is that they could come as a package with the RAN's new amphibious ships. But this is where other considerations begin to become apparent. Politics enters the equation, with calculations being made about which electorates will benefit from the work, and which of our three shipbuilders are going to survive.
The problem is that there are two projects, but three companies that all want a share of the action building the ships. Tenix wants Australia to buy the Spanish amphibious ships, but Thales (formerly ADI) wants to sell the RAN a rival French design. The third company, ASC, will build the new destroyers, regardless of which design is chosen. It's also maintaining the submarine fleet, so its future is secure. That's not the case for the other two contenders. The key to understanding the rival bids may be analysing where the work is going to flow, particularly in an election year. Here Thales seems to have some advantages, although Tenix seems to have the contacts.
The difficulty is that we don't really know exactly what tasks the ships will be required for until they're needed. The US AWDs are more capable, which is what you'd want in a hot war, but it's hard to work out exactly who we'd be fighting. The suggestion that Australia might have to deploy a fleet against a submarine-equipped enemy without any assistance is questionable. So is the idea that the destroyers may form part of a "missile shield" covering Australia.
New Class of USMC Aircraft Carriers
June 5, 2007: The U.S. is building a new class of LHAs. Currently only known by its hull number, LHA-6, this vessel is a variant of the USS Makin Island, itself a variant of the baseline Wasp-class amphibious assault ship. Why is the Navy returning to the LHA designation used by the Tarawa-class vessels. as opposed to the LHD designation used by the Wasp-class, which this ship is based on? Simple – the LHA-6 is going to be focused more on supporting the air group for a Marine Expeditionary Unit.
In fact, unlike the Tarawa-class LHAs and Wasp-class LHDs, the LHA-6 will have no water level well deck for landing craft, making it a helicopter landing platform ship, like the 1960s vintage Iwo Jima-class. So, why not just build more baseline Wasp-class ships, which only cost about $800 million each? That is about a third of the cost – and it leads to the natural question of whether the Navy would be better off with three baseline Wasp-class LHDs or even sticking with the Makin Island variant – which only costs about 63 percent what LHA-6 will cost (meaning three LHDs like the Makin Island can be built for the price of one LHA-6).
The answer is that the air groups of the Marine Expeditionary Units are undergoing a major change – and the ships that carry them need to evolve to properly support them. At the present time, the amphibious ships tend to carry 12 CH-46 troop transport helicopters, 4 AH-1 attack helicopters, 2-4 UH-1 helicopters, 4 CH-53E heavy-lift choppers, and 6-8 AV-8B+ Harrier multi-role VSTOL aircraft. This is planned to change to 12 V-22s, 8 AH-1s, 10 F-35s, 4 CH-53Ks, and 4 Navy CH-60 helicopters. In both cases, actual air combat elements (the term for the reinforced squadron deployed on these vessels) may vary depending on the mission. The LHA-6 is being built with these new aircraft, tilt-rotors, and helicopters in mind.
This major shift in the air group – including a 66% increase in the number of fixed-wing VSTOL aircraft – makes these vessels much more capable. The LHA-6 continues the evolution of the Marine amphibious assault ships into more of a small 50,000-ton catapult-less carrier than an amphibious assault ship. To put the size and capabilities of these ships into perspective, the British Invincible-class carriers, the Spanish Principe de Asturias, and the Italian Giuseppe Garibaldi and Andrea Doria all range in the 15,000 to 25,000 ton range and carry maybe half or two-thirds of the aircraft and helicopters that the LHA-6 or the Tarawa-class and Wasp-class vessels will carry. Already, the Wasp and Tarawa-class vessels were seen as being capable of a sea-control mission, usually carrying twenty Harriers and six to eight SH-60 anti-submarine helicopters.
It is these ships that probably demonstrate not only the present supremacy of the U.S. Navy over potential rivals. In essence, with the seven Wasp-class LHDs and the three Tarawa-class LHAs in service, the United States Navy has another ten aircraft carriers – most of which are already capable of fielding an air group slightly smaller than that planned for the British Queen Elizabeth-class carriers. With United States plans to eventually have eight Wasp-class LHDs and at least four of the LHA-6 class vessels, this force is a very potent carrier fleet in its own right. Even though they are much slower (37 kilometers per hour vs. over 48 for the Queen Elizabeth class), they are still more than capable of doing things like protecting convoys, hunting submarines, or handling a small crisis like evacuating an embassy or hitting a terrorist camp. That leaves the carriers free to go on the offensive.
In essence, the United States has the two most powerful carrier fleets in the world. The good news is that they are becoming more powerful. Already, the United States Navy can dominate any major or minor conflict around the world. That dominance will increase with the LHA-6 and the other ships of that class. – Harold C. Hutchison
ICBM44 escribió:La embarcación "The Astute" (El Astuto), que puede detectar desde el Canal de la Mancha el movimiento de cruceros en la bahía de Nueva York, es la primera en su tipo en construirse en Gran Bretaña desde hace más de dos décadas.
ICBM44 escribió:Sera realmente el mas poderozo??
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