Three vessels of the United States Navy have been named USS San Francisco, after the city of San Francisco, California. The City and County of San Francisco is the fourth most populous city
- The first San Francisco (C-5) was a protected cruiser commissioned in 1890, converted to a minelayer in 1908, and decommissioned in 1921. See also See USS ''San Francisco'' for other ships of this name Protected cruisers were a type of naval Cruiser of the late 19th century so known because their deck armour offered protection for vital machine spaces from shrapnel caused Year 1890 ( MDCCCXC) was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Common Minelaying is the act of deploying explosive mines Historically this has been carried out by ships submarines and aircraft Year 1908 ( MCMVIII) was a Leap year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Leap year Year 1921 ( MCMXXI) was a Common year starting on Saturday (link will display full 1921 calendar of the Gregorian calendar
- The second San Francisco (CA-38) was a heavy cruiser commissioned in 1934, active throughout the Pacific War, and decommissioned in 1946. For other uses and meanings of "CA-38" see CA-38 (Disambiguation. The heavy cruiser was a type of Cruiser, a naval Warship designed for long range high speed and an armament of naval guns roughly 8in in calibre Year 1934 ( MCMXXXIV) was a Common year starting on Monday (link will display full 1934 calendar of the Gregorian calendar. The Pacific War was the part of World War II —and preceding conflicts—that took place in the Pacific Ocean, its islands and in East Asia, between Year 1946 ( MCMXLVI) was a Common year starting on Tuesday (link will display full 1946 calendar of the Gregorian calendar.
- The third San Francisco (SSN-711) is a Los Angeles-class nuclear attack submarine commissioned in 1981 and on active service. Collision with Seamount On 8 January 2005 at about 0200 GMT San Francisco collided with an undersea mountain about 560 kilometers (350 statute miles Characteristics Capabilities According to the US government the top speed of Los Angeles -class submarines is over 25 knots (46 km/h 29 mph A submarine is a Watercraft that can operate independently below water as distinct from a Submersible that has only limited underwater capability Year 1981 ( MCMLXXXI) was a Common year starting on Thursday (link displays the 1981
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