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96 ft (29.3 m) Propulsion. None. Shippingport (ARDM-4) is an ARDM-4 -class United States Navy Medium Auxiliary Repair Dry Dock. She is one of the Navy's two medium auxiliary repair dry docks, and was the first floating dry dock built for the US Navy since World War II. [1] Laid down in 1977, delivered and placed in service on 4 January 1979 ...
A floating dry dock is a type of pontoon for dry docking ships, possessing floodable buoyancy chambers and a U-shaped cross-section. The walls are used to give the dry dock stability when the floor or deck is below the surface of the water. When valves are opened, the chambers fill with water, causing the dry dock to float lower in the water ...
USS Oak Ridge (ARD-19/ARDM-1) was originally a United States Navy Auxiliary floating drydock suitable for dry docking destroyers, submarines and landing craft, built by the Pacific Bridge Company. In the early 1960s she was upgraded to support Los Angeles-class submarines, and re-classified as ARDM-1 -class. A stern door and enclosed bow design ...
A caisson is a form of lock gate. It consists of a large floating iron or steel box. This can be flooded to seat the caisson in the opening of the dock to close it, or pumped dry to float it and allow it to be towed clear of the dock. Graving docks at Birkenhead, closed by a variety of ship caissons and floating (sliding) caissons.
An auxiliary floating drydock is a type of US Navy auxiliary floating dry dock. Floating dry docks are able to submerge underwater and to be placed under a ship in need of repair below the water line. Water is then pumped out of the floating dry dock, raising the ship out of the water. The ship becomes blocked on the deck of the floating dry ...
USS. Dewey. (YFD-1) 18,500 t. USS Dewey (YFD-1) was a floating dry dock built for the United States Navy in 1905, and named for American Admiral George Dewey. The auxiliary floating drydock was towed to her station in the Philippines in 1906 and remained there until scuttled by American forces in 1942, to prevent her falling into the hands of ...
The drydock can accommodate a maximum vessel length of 291.6 feet (88.9 m) with a 39.33-foot (11.99 m) beam. Depth is 30 feet (9.1 m). the dock can be dewatered in 40 minutes and flooded in 90 minutes. The drydock was built between 1827 and 1834, and cost $974,365.65, a very high price at that time.
Dry Dock № 1 194.74 33.0 9.19 * Norfolk Naval Yard: United States of America: Norfolk, Virginia Dry Dock № 8 333.0 46.0 14.6 * Dry Dock № 4 308.0 44.0 13.5 * Dry Dock № 3 221.0 37.0 10.5 * Dry Dock № 2 151.3 32.06 11.4 * Dry Dock № 1 99.2 26.3 7.8 * General Dynamics Electric Boat: United States of America: Groton, Connecticut