United States C-class submarine

The C class submarines were five boats built for the United States Navy by the Fore River Shipbuilding Company in Quincy, Massachusetts, under a subcontract from the Electric Boat Company. Built between 1906–1909, and in commission from 1908–1919, all five were subsequently sold for scrap in 1920.

Service history
The C-class submarines served in the Atlantic Fleet. On 20 May 1913, the five C-class boats of the First Group, Submarine Flotilla, Atlantic Fleet, departed Norfolk, Virginia for Guantanamo Bay, Cuba. They exercised in Cuban waters, principally conducting torpedo practices, until 7 December 1913. On that date the C-class boats, now of the redesignated First Division, escorted by four surface ships, sailed for Cristóbal in the Panama Canal Zone. Five days later the ships completed the 700 mile passage, at that time the longest cruise made by United States submarines under their own power. The submarines remained there until decommissioned in 1919.

Ships

 * USS C-1 (SS-9) was launched on 4 October 1906 as USS Octopus and commissioned on 30 June 1908. Renamed C-1 on 17 November 1911, the submarine was decommissioned on 4 August 1919, and sold for scrap on 13 April 1920.
 * USS C-2 (SS-13) was launched on 8 April 1909 as USS Stingray and commissioned on 23 November 1909. Renamed C-2 on 17 November 1911, the submarine was decommissioned on 23 December 1919, and sold for scrap on 13 April 1920.
 * USS C-3 (SS-14) was launched on 8 April 1909 as USS Tarpon and commissioned on 23 November 1909. Renamed C-3 on 17 November 1911, the submarine was decommissioned on 23 December 1919, and sold for scrap on 12 April 1920.
 * USS C-4 (SS-15) was launched on 17 June 1909 as USS Bonita and commissioned on 23 November 1909. Renamed C-4 on 17 November 1911, the submarine was decommissioned on 15 August 1919, and sold for scrap on 13 April 1920.
 * USS C-5 (SS-16) was launched on 16 June 1908 as USS Snapper and commissioned on 2 February 1910. Renamed C-5 on 17 November 1911, the submarine was decommissioned on 23 December 1919, and sold for scrap on 13 April 1920.