Sunday, October 30, 2011

Deadly USS Nimitz (CVN-68)

Army and Weapons | Deadly USS Nimitz (CVN-68) | USS Nimitz (CVN-68) is a supercarrier in the U.S. Navy, the lead ship of her class. She is one of the largest warships in the world. She was laid down, launched and commissioned as CVAN-68, but was again 68 CVN (nuclear powered aircraft carrier multi-mission) on June 30, 1975, as part of the fleet redeployment of that year.

The ship was named for World War II Pacific Fleet commander Chester W. Nimitz, who was last fleet admiral of the navy. Unlike all later Nimitz class aircraft carriers, Nimitz uses only its namesake of the surname. She is also the first carrier of its class and the latest super carrier not to be named for someone who held elective office in the United States.

The Nimitz class carriers have a total length of 1092 ft (333 m) and a full load of about 100.000 to 104.000 long tons (102.000 to 106.000 tonnes). They have a bar at the waterline of 135 ft (41 m), and the maximum width of their flight deck is 251 ft 10 in to 257 ft 3 in (77.76 m to 78.41 m) (depending on the variant) . The ships' companies can track up to 3200, except for an air wing of 2480
Nimitz was homeported at Naval Station Norfolk until 1987 when she moved to Puget Sound Naval Shipyard in Bremerton, Washington. After its refueling and complex overhaul in 2001, Nimitz was moved to NAS North Island in San Diego, California. Nimitz was changed homeport in Everett, Washington, in 2010. This move is expected to save the Navy $ 100 million.
The Nimitz-class aircraft carriers were ordered to the Kitty Hawk class aircraft carriers and enterprise-class supplement, maintaining the strength and ability of the U.S. Navy after the older carriers were dismantled. The ships were designed to be improvements on earlier U.S. aircraft carriers, especially the Enterprise and Forrestal-class supercarrier, although the arrangement of the vessels is relatively similar to the Kitty Hawk class. Among other improvements in the design, the two reactors at the Nimitz class carriers take up less space than the eight reactors on Enterprise. Along with an improved design in general, this means that the Nimitz class carriers is 90% more kerosene and 50% more ammunition in comparison to the Forrestal class.
The U.S. Navy has stated that the carriers three times the damage caused by the Essex-class Japanese air raids during World War II to resist. The pilots of the ships are divided into three bays by thick steel fire doors are designed to limit the spread of fire. This addition is present on the American aircraft carrier since World War II, after the fire caused by Kamikaze attacks.

The first ships were designed around the time of the Vietnam War, and certain aspects of the design activities were influenced by it. To some extent, the carrier operations in Vietnam showed the need for increased capabilities of aircraft carriers about their survival because they were used to fail to send to war and were therefore less subject to attack. As a result of this experience, Nimitz carriers were designed with larger and larger stores of aviation magazines over previous carriers, although this was partly due to the increased space available by the new design of the ship propulsion system.
An important goal of the ships was the first U.S. military aid during the Cold War, and they were designed with capabilities that role, including the use of nuclear energy instead of oil to a greater endurance when deployed in the blue water, and the ability to make modifications to the transport weapons systems based on new intelligence and technological developments. They were initially only categorized as assault carriers, but ships are built with anti-submarine capabilities, as USS Carl Vinson. As a result, the ships and aircraft are now able to participate in a wide range of activities, sea and air blockades, laying mines, and rocket attacks on land, sea and air can contain.

Due to a design flaw, ships of this class have an inherent starboard list of taxes under combat conditions that exceed the capacity of their list control. The problem seems to be especially prevalent in some of the more modern ships. This problem has already been solved by using damage control voids for ballast, but a solution with fixed ballast, which does not affect the ship survivability has proposed.
In addition to the aircraft on board the ships carry defensive apparatus for use against enemy aircraft and missiles. These consist of three or four NATO RIM-7 Sea Sparrow missile launchers designed to defend against aircraft and anti-ship missiles and three or four Phalanx CIWS missile shield 20 mm cannon. USS Ronald Reagan, none of these, built with the Rolling Airframe Missile RIM-116 system, two of which are also installed on the USS Nimitz and the USS George Washington. These will be installed on other ships as they return to refuel Complex Overhaul (RCOH). Since USS Theodore Roosevelt, the carriers are built with 2.5 in (64 mm) Kevlar armor over vital areas, and old ships were converted to: Nimitz in 1983-1984, 1.985 to 1987 Eisenhower and Vinson in 1989.

The other countermeasures ships to use four Sippican SRBOC (super fast finish off-board chaff) six-cylinder MK36 decoy launchers, which are infrared flares and chaff committed to the sensors of incoming rockets disrupt a SSTDS torpedo defense system, and an AN / SLQ-25 Nixie torpedo countermeasures system. The carriers also use Raytheon AN/SLQ-32 (V) electronic warfare systems to detect and disrupt enemy radar signals in addition to the electronic warfare capabilities of some of the aircraft on board.

A carrier set, the start of a ten Carrier Air Wings (CVW). The supports are suitable for up to 130 F/A-18 Hornets 85-90 or aircraft of various types, but the current figures are usually 64 planes. Although the air wings are integrated with the operation of the carriers are used to, they are considered a separate entity. Besides the crew, the air wings also the support staff involved in roles including maintenance, aircraft and artillery handling and emergency procedures. Each person in the cockpit wearing color-coded clothing to their roles easily identified.

A typical Carrier Air Wing may include F/A-18F Super Hornets 12-14 as Strike Fighters, two squadrons of F/A-18C Hornets 10-12, with one of these often by the U.S. Marine Corps (VMFA) , as Strike Fighters, 4-6 EA-6B electronic warfare for robbers, 4-6 E-2C Hawkeye airborne early warning for C-2 Greyhounds used for logistics, and a helicopter Anti Submarine Squadron of 6-8 SH 60F and HH-60H Seahawks. Aircraft previously operated Nimitz-class carriers include F-14 Tomcats, S-3 Viking, A-7 Corsair II and A-6E Intruder aircraft.

The cockpit has an angle of nine degrees, which allows for aircraft to be launched and recovered simultaneously. This corner of the cockpit was slightly reduced compared to previous carriers, such as the current design improves airflow around the carrier. Four steam catapults used to launch fixed-wing aircraft, and four arrestor wires are used for recovery. The two newest carriers, Reagan and Bush, only three arrestor wires each, and the fourth was rarely used on older ships, and was therefore not considered necessary. CATOBAR this arrangement provides faster launching and recovery, and a much wider range of aircraft that can be used aboard aircraft carriers in comparison with smaller, most of which are easier to use STOVL system without catapults or arrestor wires. The ship aircraft operations are controlled by the air boss on the bridge. Four large elevators transport aircraft between the hangars and flight deck below. These sheds are divided into three bays by thick steel doors that are designed to limit the spread of fire.

The keel of Nimitz was laid June 22, 1968 by Newport News Shipbuilding in Newport News, Virginia. She was christened in 1972 by Catherine Nimitz Lay, daughter of the late Admiral Nimitz. Nimitz was delivered to the Navy in 1975, and she was commissioned from Naval Station Norfolk on May 3, 1975 by President Gerald Ford.