AFDM-1-class floating drydock, on it side for Panama Canal passage | |
History | |
---|---|
United States | |
Name | YDS-4 |
Operator | Todd Shipyards at New Orleans |
Builder | Alabama Drydock and Shipbuilding Company, Mobile |
Cost | $2,760,300 (1942) |
Laid down | January 1943 |
Commissioned | 1 October 1943 |
Reclassified | AFDM-2, 1945 |
Honors and awards | See Awards |
Fate | Sold to Gulf Copper & Manufacturing Corp., 11 February 1999 |
Status | Operational in Port Arthur, Texas |
General characteristics | |
Class and type | AFDM-1-class floating drydock |
Displacement | 6,360 t (6,260 long tons) |
Length | 616 ft (187.8 m) |
Beam | 116 ft (35.4 m) |
Draft | 6 ft (1.8 m), empty |
Capacity | 9,000 t (8,858 long tons), lift |
Complement | 4 officers, 146 enlisted |
Armament | |
Notes | 2 × service cranes |
USS AFDM-2, (former YFD-4), is an AFDM-3-class medium auxiliary floating drydock built in Mobile, Alabama by the Alabama Drydock and Shipbuilding Company for the U.S. Navy. Originally named USS YFD-4, Yard Floating Dock-4, she operated by Todd Shipyards at New Orleans, Louisiana for the repair of US ships during World War II. YFD-4 was renamed an Auxiliary Floating Dock Medium AFDM-2 in 1945 after the war.
AFDM-2 was 37 feet (11.3 m) tall, 116 feet (35.4 m) wide, length of 614 feet (187.1 m) (all three section connected), and has a displacement of 6,360 tons. AFDM-2 could lift capacity 9,000 tons and had two service cranes to lift material and parts for removing damage parts and the installation of new parts. The floating drydock can repair ships up to a beam of 90 feet (27.4 m), as she is 90 feet wide between the wing walls. Ballast pontoons tanks are flooded with water to submerge or pumped dry to raise the ship. Submerged she can load a ship with a draft up to 20 feet (6.1 m). [1] [2] [3] [4] [5]
It was built by Alabama Drydock and Shipbuilding Company in Mobile, Alabama. she was laid down in January 1942 and commissioned on 1 October 1943, right after her delivery to the Navy.
Hurricane Betsy, Category 4, sank and damaged AFDM-2 on 9 September 1965. USS AFDM-2 was at Todd Shipyards on the west side of the Mississippi River in Algiers, New Orleans. AFDM-2 had the water pumped out of her pontoon tanks and was raised for repair. The salvage ships MS Cable and USS Curb and USS Salinan, an Achomawi-class fleet ocean tug, helped in the recovery of AFDM-2. Due to the large size of AFDM-2 two rescue and salvage ships, USS Salvager and USS Windlass arrived with three special support barges to help in the salvage. Land-based winches were also used in the recovery. On 25 August 1966 tugs returned AFDM-2 to Todd Shipyards, eleven months after her sinking. Repairs where completed and she was put back in service. Divers had to repair more than 100 holes in AFDM-2 to float her again. [6]
On 16 May 1995 she was laid up in the National Defense Reserve Fleet, Beaumont, Texas. On 11 February 1999 she was reactivated and transferred to the Government of the Dominican Republic. She was later sold to Gulf Copper & Manufacturing Corporation at Port Arthur, Texas and renamed Mr. Morris. [7] In 2013 USS LST-325, a landing ship, tank, now a museum ship, was repaired in AFDM-2. [8] On 17 December 2021, USS Orleck (DD-886) arrived in Port Arthur to be repaired in AFDM-2. [9]
The Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility is a United States Navy shipyard located in Pearl Harbor, Hawaii on 148 acres. It is one of just four public shipyards operated by the United States Navy. The shipyard is physically a part of Joint Base Pearl Harbor–Hickam.
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 invading Japanese.
USS Richland (YFD-64/AFDM-8) was an AFDM-3-class medium auxiliary floating drydock built in California for the U.S. Navy. Originally named USS YFD-64, she was towed to the Philippines and Guam where she served until war's end.
USS Waterford (ARD-5) was an Auxiliary floating drydock that served in the United States Navy during World War II, the Korean War, the Vietnam War, and the Persian Gulf War. She later served the Chilean Navy as Talcahuano (133).
An auxiliary floating drydock is a type of US Navy 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 dock for repair. Most floating dry docks have no engine and are towed by tugboats to their destinations. Floating dry docks come in different sizes to accommodate varying ship sizes, while large floating dry docks come in sections and can be combined to increase their size and lift power. Ballast pontoon tanks are flooded with water to submerge or pumped dry to raise the ship.
YFD-2 was an auxiliary floating drydock built for the United States Navy in 1901. The first parts were laid down in early 1901 at Maryland Steel Co. of Sparrows Point, Maryland. YFD-2 was the first of its kind, steel movable auxiliary floating drydock, used to raise large ships out the water for repair below the ship's waterline. YFD-2 had a 18,000 tons lifting capacity.
USS ABSD-2, later redesignated as AFDB-2, was a ten-section, non-self-propelled, large auxiliary floating drydock of the US Navy. Advance Base Sectional Dock-2 was constructed in sections during 1942 and 1943 by the Mare Island Naval Shipyard in Vallejo, California for World War II. Her official commissioning ceremony took place on 14 August 1943 with CDR. Joseph J. Rochefort in command. With all ten sections joined, she was 927 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-2 had a traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-2 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible. There were also 4 ballast compartments in each section.
ABSD-3 is an advanced base sectional dock, constructed of nine advance base dock (ABD) sections for the US Navy as an auxiliary floating drydock for World War II. ABSD-3 was delivered to the US Navy in April 1944, and was commissioned on 27 October 1944. Advance Base Sectional Dock-3 was constructed in sections during 1942 and 1943.
ABSD-6 is an advanced base sectional dock which was constructed of nine advance base docks (ABD) sections for the US Navy as an auxiliary floating drydock for World War II. ABSD-6 was built by Mare Island Naval Shipyard at Vallejo, California. ABSD-6 was commissioned on 28 September 1944. Advance Base Sectional Dock-6 was constructed in sections during 1942 and 1943. Each section are 3,850 tons and are 93 feet long each. Each Section had a 165 feet beam, a 75 feet molded depth and had 10,000 tons lifting capacity each. There were 4 ballast compartments in each section. With all nine sections joined, she was 825 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-2 had a traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-6 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible.
USS ABSD-4, later redesignated as AFDB-4, was a nine-section, non-self-propelled, large auxiliary floating drydock of the US Navy. Advance Base Sectional Dock-4 was constructed in sections during 1942 and 1943 by the Mare Island Naval Shipyard in Vallejo, California for World War II. With all ten sections joined, she was 927 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-4 had a traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-4 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible. There were also 4 ballast compartments in each section.
USS ABSD-5, later redesignated as AFDB-5, was a nine-section, non-self-propelled, large auxiliary floating drydock of the US Navy. Advance Base Sectional Dock-5 was constructed in sections during 1943 and 1944 by the Chicago Bridge & Iron Company in Morgan City, Louisiana for World War II. With all nine sections joined, she was 825 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-5 had two traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-5 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible. There were also 4 ballast compartments in each section.
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The USS Sustain (AFDM-7),, was a AFDM-3-class floating dry dock built in 1945 and operated by the United States Navy.
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