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Stevens Battery

Stevens Battery 1874.jpg
The Stevens Battery design as of 1874
History
United States
Name: Stevens Battery
Namesake: Its designers and builders, Robert L. Stevens and Edwin Augustus Stevens, who proposed the ship in 1841
Ordered: By Stevens Battery Act of 1841
Awarded: 1842
Builder:
Cost: Approximately $2,500,000 (USD) spent between 1841 and 1874; approximately $450,000 (USD) additional estimated to be required for launching ship when work ended in 1874
Laid down: 1854
Launched: Never
Completed: Never
Commissioned: Never
Fate: Scrapped incomplete 1881
General characteristics (1844 design)
Type: Semisubmersible ironclad
Displacement: 1,500 tons
Length: 250 ft (76 m)
Beam: 40 ft (12 m)
Installed power: 900 ihp
Propulsion: Steam engine; screw-propelled
Speed: 18 knots (estimated)
Armament: 6 x large muzzle-loading cannons
Armor:
General characteristics (1854 design)
Type: Semisubmersible ironclad
Displacement: 4,683 tons
Length: 420 ft (130 m)
Beam: 53 ft 0 in (16.15 m)
Installed power: 8,600 ihp
Propulsion: Eight steam engines, two screws, 1,000 tons coal
Speed: 20 knots (estimated)
Armament:
  • 5 × 15-inch (381-mm) rifled guns
  • 5 × 10-inch (254-mm) 425-pounder (193-kilogram) smoothbore guns
Armor: 6.75 in (0.171 m) iron plate
General characteristics (1869 design)
Type: Ironclad ram
Propulsion: Ten large-diameter boilers, two Maudsley and Field vertical overhead-crosshead engines, screw-propelled
Speed: 15 knots (estimated)
Armament: never determined

The Stevens Battery was an early design for a type of ironclad, proposed for use by the United States Navy before the American Civil War. One full-sized example was begun but never completed due to lack of funding.

In 1841, the United States was in the midst of a war scare with the United Kingdom over the American boundary with Canada, among other issues. Americans remembered the British invasion of the United States by sea during the War of 1812 and, to avoid its recurrence, President John Tyler and Secretary of the Navy Abel P. Upshur called for a large increase in the size of the U.S. Navy in order to defend the coast. A like-minded U.S. Congress authorized the use of $8,500,000 (USD) to fund the expansion.

In this environment, Robert L. Stevens and Edwin Augustus Stevens, the sons of Colonel John Stevens of Hoboken, New Jersey, proposed to the Department of the Navy on August 13, 1841 the construction of a revolutionary steam-powered ironclad vessel of high speed, with screw propellers and all machinery below the water line. Congress passed and President Tyler signed the Stevens Battery Act the same year to authorize funding for the construction of the ship, and the U.S. Navy's Board of Commissioners approved the Stevens brothers' specific proposal for the ship in January 1842. An Act of Congress authorizing Upshur to contract for the construction of a shot- and shell-proof steamer, to be built principally of iron, on the Stevens plan was approved on April 14, 1842. The ship, which became known as the "Stevens Battery," was to be the first such ship ever to be built under government authorization. She was intended to serve as a fast, powerful, heavily armored, mobile battery, reinforcing the coastal fortifications of New York City.


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