Stevens Battery

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The Stevens Battery design as of 1874
History
United States
NameStevens Battery
NamesakeIts designers and builders, Robert L. Stevens and Edwin Augustus Stevens, who proposed the ship in 1841
OrderedBy Stevens Battery Act of 1841
Awarded1842
Builder
CostApproximately $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 down1854
LaunchedNever
CompletedNever
CommissionedNever
FateScrapped incomplete 1881
General characteristics (1844 design)
TypeSemisubmersible
ironclad
Displacement1,500
tons
Length250 ft (76.2 m)
Beam40 ft (12.2 m)
Installed power900
kW
)
PropulsionSteam engine; screw-propelled
Speed18 knots (estimated)
Armament6 x large muzzle-loading cannons
Armor
General characteristics (1854 design)
TypeSemisubmersible ironclad
Displacement4,683
tons
Length420 ft (128.0 m)
Beam53 ft 0 in (16.2 m)
Installed power8,624
kW
)
PropulsionEight steam engines, two screws, 1,000 tons coal
Speed20 knots (estimated)
Armament
Armor6.75 in (17.1 cm) iron plate
General characteristics (1869 design)
TypeIronclad ram
PropulsionTen large-diameter boilers, two Maudsley and Field vertical overhead-crosshead engines, screw-propelled
Speed15 knots (estimated)
Armamentnever 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.

Background

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

USD
) to fund the expansion.

In this environment,

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.

The Stevens brothers selected their family estate in

drydock
dug out of solid rock there, and then install large pumps to keep the drydock from flooding, and delays occurred from the very beginning of the project. The budget for the ship was set at $600,000 (USD), based on vaguely similar earlier ships, but in fact the new ship was revolutionary in concept and design that no one really knew how to build her or how much she would cost.

The 1844 design

The Stevens' original design for the ship was completed in 1844 and called for a 250-foot-long (76-meter) ship 40 feet (12 m) in beam and displacing 1,500 tons. She was to be armed with six large-caliber muzzle-loading

indicated horsepower (ihp)
and give her an estimated top speed of 18 knots (33 km/h)r), and this very high speed for the era combined with good maneuverability were intended to make her a hard target to hit as well.

Experiments by

Bureau of Construction
announced his intention to scrap the incomplete ship and sell her materials.

The 1854 design

The Stevens brothers succeeded in getting Congress to overrule Bancroft and Skinner, and set about radically redesigning the Stevens Battery. The new design was ready by January 1854. It called for a great increase in the ship's size and capabilities. She was now to be 420 feet (130 m) long, 53 feet (16 m) in beam, and displace 4,683 tons. She was to be proof against 125-pound (56.7-kilogram) shells, with armor made up of 6.75-inch (171-millimeter) iron plates sloping upwards from 1-foot (0.30 m) below the waterline to the main deck and running along the entire side of the ship from stem to stern. She was to have bulwarks to make her more seaworthy when steaming which could be lowered to reduce her freeboard in combat, making her a smaller target. Again, the ship was to be semisubmersible, able to submerge herself down to the gunwales, also to make her a smaller target.

Her armament was to consist of two 10-inch (254-millimeter) rifled guns mounted on pivots fore and aft and five 15-inch (381-mm) smoothbore guns mounted on the deck above an armored casemate. The 15-inch (380 mm) guns were to fire 425-pound (193-kilogram) shells. The gun crews, protected by the casemates, would load the 15-inch (380 mm) guns from below through holes in the deck protected by armored hoods; the gun's muzzle would be pointed into the hole, and a steam-powered cylinder would use a ramrod to load the gun for the next shot, allowing a high rate of fire. Water was to be injected into each gun automatically after it fired, to cool the gun and prevent it from being damaged by extended, rapid firing.

The ship was to have eight steam engines generating 8,600 ihp (6,400 kW) to drive two

fan-driven ventilation
, to increase crew comfort by extracting fumes and hot air from below decks.

The Stevens brothers made significant progress on the newly designed ship between January 1854 and September 1855, but then work slowed again. When Robert Stevens died in April 1856, worked stopped entirely, and did not resume until 1859.

The Navy by then was losing interest in the ship. By 1861, it had spent $500,000 (U.S.) on the project, and the Stevens family had spent another $228,435 (U.S.). That year, Edwin Stevens and his brother

John C. Stevens offered to pay for completion of the ship themselves if the Navy would agree to pay for the ship if it was completed and proved successful, but a Navy board rejected the offer, finding deficiencies in the project. It was not clear when the ship would be completed, and in 1862 Edwin Stevens estimated that it would take another $730,484 (U.S.) just to complete the ship enough for to be launched
.

The Civil War and USS Naugatuck

When the American Civil War broke out in 1861, Edwin Stevens claimed that a completed Stevens Battery would have a decisive impact against Confederate forces. Hoping to prove his point, he purchased an iron-hulled steamer and modified her greatly into a warship that would demonstrate to the U.S. Navy some of the principles he had in mind for the Stevens Battery, including high maneuverability, a respectable top speed, a semisubmersible capability, and a large gun on the main deck capable of a high rate of fire and loaded from below the deck by gun crews protected by armor.

The resulting vessel,

United States Revenue-Marine
in the autumn of 1861, but soon was loaned to the Navy. In action in May 1862, her main gun burst. Her armor protected the gun crew from the explosion as Stevens intended, but the Navy was not won over by the design, and Naugatuck soon went back to the Revenue-Marine.

Although the Navy had a large ironclad program during the Civil War for which the Stevens Battery seemed a logical fit, a Navy board found numerous deficiencies in the ship and the Navy decided not to spend any more money on her. On July 17, 1862, Congress voted to turn all ownership of and rights to the Stevens Battery over to the Stevens family, and the ship spent the Civil War in her drydock.

The 1869 design

Edwin Stevens died in 1868, leaving the Stevens Battery and $1,000,000 (USD) with which to finish her to the

Major General George B. McClellan, the commander of the Army of the Potomac early in the Civil War, became engineer
-in-chief.

McClellan redesigned the ship yet again. The 1866

USS Monitor, although the type and caliber of guns were never determined. Her machinery was removed and replaced by ten large-diameter boilers and two Maudsley and Field
vertical overhead-crosshead steam engines which were to give the Stevens Battery a top speed of 15 knots (28 km/h).

The end

By 1874, all the money for her completion was gone, and the ship was not yet ready for launching even after the Stevens family had spent $2,000,000 (USD) on her since proposing her in 1841. McClellan estimated that she would require another $450,000 (USD) just to reach a state where she could be launched, with more necessary to

fit her out after that. No more money was available from the Stevens family, Robert and Edwin Stevens both were dead, and the last hope to make something out of the project was to sell the ship. A possible sale to Prussia
fell through, and there were no other potential buyers.

Most of the ship's machinery was sold in 1874 and 1875, and the ship was sold for scrap at public auction in 1881. The scrappers had to use blasting to dismantle her hull.

The Stevens Battery in many ways was far ahead of her time when proposed in 1841, and remained a revolutionary design with potential capabilities far beyond the norm for her times. But her first design proved inadequate in the face of the advance of gun technology, her second design took too long to build and never found favor with the U.S. Navy, and her third design, although modernized, came too late to salvage the project before it ran out of money. Had the Stevens Battery ever put to sea in the 1840s, 1850s, or 1860s, she might have set a new standard for the time in naval design.

References

  • This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.
  • Canney, Donald L. (1993). The Old Steam Navy: The Ironclads, 1842–1885. Vol. 2. Annapolis, Maryland: Naval Institute Press. .
  • Gibbons, Tony (1989). Warships and Naval Battles of the Civil War. New York: Gallery Books. .
  • Olmstead, Edwin; Stark, Wayne E.; Tucker, Spencer C. (1997). The Big Guns: Civil War Siege, Seacoast, and Naval Cannon. Alexandria Bay, New York: Museum Restoration Service. .
  • Silverstone, Paul H. (2006). Civil War Navies 1855-1883. The U.S. Navy Warship Series. New York: Routledge. .
  • Small, Stephen C. "The Ship That Couldn't Be Built." Naval History, Vol. 22, No. 5, October 2008.

External links