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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 ...
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.
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 ...
Auxiliary repair dock. An auxiliary repair dock (ARD) is a type of floating drydock employed by the U.S. Navy, especially during World War II. The Navy commissioned 33 ARD vessels: ARD-1 through ARD-33. ARDs were self-sustaining in World War II. ARDs have a rudder to help in tow moving, making ARDs very mobile, and have a bow to cut through waves.
A dry deck shelter (DDS) is a removable module that can be attached to a submarine to allow divers easy exit and entrance while the boat is submerged. The host submarine must be specially modified to accommodate the DDS, with the appropriate mating hatch configuration, electrical connections, and piping for ventilation, [ 1 ] divers' air, and ...
Steve Clark, The Brownsville Herald, Texas. July 17, 2024 at 4:47 PM. Jul. 16—A well-traveled floating dry dock built in the 1940s to service Navy vessels and relocated to the Port of ...
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 ...
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. [5] The drydock was built between 1827 and 1834, and cost $974,365.65, a very high price at that time. [4]