- USS Casco (1864)
USS "Casco" was the first of a class of twenty 1,175-ton light-draft monitors built by Atlantic Works, Boston, MA for the
Union Navy during theAmerican Civil War .Launch and refitting
Upon her launching in May
1864 , it was found that the design of these ships was seriously flawed. She was pronounced unseaworthy when nearly completed and on25 June 1864 she was ordered to be converted to atorpedo vessel, without a turret or heavy guns. "Casco" was commissioned4 December 1864, Acting Master C. A. Crooker in command.John Ericsson developed the original design for the Casco class monitors, but Chief EngineerAlban C. Stimers , the General Inspector of Ironclads, elaborated it. When bids were requested for the ships, Assistant Secretary of the NavyGustavus Fox wrote to Ericsson to confirm that Stimers had arranged the details with Ericsson’s approval. Ericsson replied that he had been kept in the dark and that Stimers had “frittered away” Ericsson’s principles, but in March 1863, Fox began to award contracts anyway. The vessels received another redesign in the aftermath ofRear Admiral Samuel F. Du Pont's failed attack on Charleston, SC, on April 7, 1863. Twenty vessels were ordered without serious scrutiny of the design. $14 million US was allocated for the construction of these vessels. It was discovered that Stimers and his assistant Theodore Allen had failed to compensate properly for the weight his revisions added to the original plan and this resulted in excessive stress on the hull and a freeboard of only 3 inches. In June 1864, Stimers was removed from control of the project and Ericsson was called in to undo the damage. He was forced to raise the hulls of the monitors under construction by nearly two feet and the first few completed vessels had their turrets removed and a single pivot-mount 11 inch Dahlgren cannon mounted. These same few vessels had a retractablespar torpedo added as well.Potomac Flotilla
After completion of the additional yard work, "Casco" was towed to
Hampton Roads in March1865 . She assisted in the removal of torpedoes in the James River which made possible the advance of naval forces to Richmond, VA. In mid-April she was transferred to the Potomac Flotilla, with whom she served until the end of May. "Casco" was decommissioned10 June 1865 atWashington Navy Yard . In the widespread ship-renamings that took place in June1869 , "Casco" was given the new name "Hero". She saw no further active service, and she was broken up in April1875 .See also
* See USS "Hero" for other ships of this name.
References
*DANFS|http://www.history.navy.mil/danfs/c4/casco-i.htm
*Roberts, William H. (2002): "Civil War Ironclads: Industrial Mobilization for the US Navy 1861-1865", Johns Hopkins University Press.External links
* [http://www.history.navy.mil/photos/sh-usn/usnsh-c/casco.htm Images of USS "Casco"]
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