The Los Angeles Class #Submarine - The #LA Hunter Analysis

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The Los Angeles class of submarines are nuclear-powered fast attack submarines (SSN) in service with the United States Navy. Also known as the 688 class (pronounced "six-eighty-eight") after the hull number of lead vessel USS Los Angeles (SSN-688), 62 were built from 1972 to 1996, the latter 23 to an improved 688i standard. As of 2020, 32 of the Los Angeles class remain in commission — more than any other class in the world — and they account for more than half of the U.S. Navy's 53 fast attack submarines.
Of the 30 retired boats, a few were in commission for nearly 40 years, including USS Dallas, USS Jacksonville and USS Bremerton. With a wide variance in longevity, 12 of the 688s were laid up halfway through their projected lifespans, USS Baltimore being the youngest-retired at 15 years, 11 months. Another five also laid up early (20–25 years), due to their midlife reactor refueling being cancelled, and one was lost during overhaul due to arson. Two have been converted to moored training ships, and all others are being scrapped per the Navy's Ship-Submarine Recycling Program.
Submarines of this class are named after American towns and cities, such as Albany, New York; Los Angeles, California; and Tucson, Arizona, with the exception of USS Hyman G. Rickover, named for the "father of the nuclear Navy." This was a change from traditionally naming attack submarines after marine animals, such as USS Seawolf or USS Shark. Rickover's response to critics of this break with tradition was, "Fish don't vote."
Los Angeles-class submarines were built in three successive flights: SSNs 688–718, SSNs 719–750, and SSNs 751–773. In 1982, after building 31 boats, the class underwent a minor redesign. The following eight that made up the second "flight" of subs had 12 new vertical launch tubes that could fire Tomahawk missiles. The last 23 had a significant upgrade with the 688i improvement program. These boats are quieter, with more advanced electronics, sensors, and noise-reduction technology. The diving planes are placed at the bow rather than on the sail, and are retractable. A further four boats were proposed by the Navy, but later cancelled.
According to the U.S. Department of Defense, the top speed of the submarines of the Los Angeles class is over 25 knots (46 km/h; 29 mph), although the actual maximum is classified. Some published estimates have placed their top speed at 30 to 33 knots (56 to 61 km/h; 35 to 38 mph). In his book Submarine: A Guided Tour Inside a Nuclear Warship, Tom Clancy estimated the top speed of Los Angeles-class submarines at about 37 knots (69 km/h; 43 mph).


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