US MILITARY TECHNOLOGY – The Los Angeles–class nucIear-attack submarines were the most successful American submarines of the Cold-Battle. The United States built sixty-two Los Angeles–class subs, more than any class except for the Gato class of World-War II. Fast, powerful and heavily armed, the submarines are slowly being replaced by Virginia-class attack boats.
The Los Angeles–class submarines, also known as the 688 class, were first designed in the early 1970s. The first ship, Los Angeles (SSN-688), was laid down in 1976. The submarines were produced at a ColdWar pace, with production averaging three to five submarines annually, significantly higher than the current pace of two Virginia-class submarines produced annually. The Navy sustained this rate of production until 1992. Over the twenty years the class was produced, various systems, including propulsion, bow and towed sonar, and even hull material were upgraded to reflect the latest technology.
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Which are the best submarines in the world? Which are the most powerful submarines in the world? The stealthy and deadly attack submarine- every seaman’s worst nightmare since World War I.
These are the weapons navies fear the most, and despite investing billions of dollars into locating, tracking, and targeting these underwater assassins, the navies of the world are still largely at the mercy of these silent machines. Hello and welcome to another episode of The Infographics Show- today we’re taking a look at the top ten underwater machines in Top Ten Attack Submarines in the World.
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The ‘F-22’ of Submarines: Why America Built Only 3 of the Deadliest Submarines Ever
In the late 1980s, the U.S. Navy was faced with a crisis. In 1980, the Soviet Union had received information from the Walker family spy ring that the Navy could track its submarines through excessive propeller noise. As a result, the Soviet Union went looking for advanced Western machinery to make better propellers. In 1981, the Japanese company Toshiba sold propeller milling machinery—now relatively common nine-axis CNC milling machines—to the Soviet Union via the Norwegian Kongsberg corporation.
By the mid 1980s, the Soviet Union’s new machinery began to make itself felt. The new Akula-class submarines had a “ steep drop in broadband acoustic noise profiles ”. One government source told the Los Angeles Times , “the submarines started to get silent only after the Toshiba stuff went in.” On top of running silent, the Akula class could dive to depths of up to two thousand feet—while the U.S. Navy’s frontline submarines, the Los Angeles class, could dive to only 650 feet.
To combat the threat of the Akula class, the U.S. Navy responded with the Seawolf class of nuclear attack submarines. The Seawolf submarines were designed with HY-100 steel alloy hulls two inches thick , the better to withstand the pressures of deep diving. HY-100 steel is roughly 20 percent stronger than the HY-80 used in the Los Angeles class. As a result, the submarines are capable of diving to depths of up to two thousand feet, and crush depth estimates run from 2,400 to 3,000 feet.
The Virginia class, also known as the SSN-774 class, is a class of nuclear-powered fast attack submarines in service with the United States Navy.
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Virginia-class #Submarines are designed for a broad spectrum of open-ocean and littoral missions. They were conceived as a less expensive alternative to the Seawolf-class attack submarines, designed during the Cold War era. They are replacing older Los Angeles-class submarines, many of which have already been decommissioned. Virginia-class submarines will be acquired through 2043, and are expected to remain in service past 2060. Based on recent updates to the designs, some of the Virginia-class submarines are expected to still be in service in 2070.
Type: Nuclear attack submarine
Operators: United States #Navy
Preceded by: Seawolf class
Cost: $2.688 billion per unit (FY2016)
In commission: 2004–present
General Dynamics Electric Boat
Newport News Shipbuilding
Length: 114.91 m
Beam: 10.36 m
Displacement: 7,900 t
40 weapons, special operations forces, unmanned undersea vehicles, Advanced SEAL Delivery System (ASDS)
The S9G nuclear reactor delivering 40,000 shaft horse power. Nuclear core life estimated at 33 years.
greater than 240 m, allegedly around 490 m.
Complement: 135 (15:120)
Greater than 46 km/h allegedly up to 65 km/h
Only limited by food and maintenance requirements.
about US$1.65 billion each (based on FY95 dollars, 30-boat class and two boat/year build-rate)
US$1.5 billion (in 1994 prices), US$2.6 billion (in 2012 prices)
Annual operating cost: $50 million per unit
Crew: 120 enlisted and 14 officers
USS Texas (SSN-775) is a Virginia-class nuclear-powered fast-attack submarine, and the fourth warship of the United States Navy to be named after the state of Texas.
The video includes footages of Sailors onboard the submarine perform routine maintenance and daily operations in the auxiliary spaces and the conning tower, prepare the submarine to dive while underway, and fire drill during a routine training exercise in the Pacific Ocean.
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