SD18 (ship type)

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SD18
Class overview
Builders: Austin & Pickersgill
Operators: Pakistan National Shipping Corporation
Preceded by: SD14
Built: 1980–1981
Completed: 3
Active: 0
Lost: 1
Scrapped: 2
General characteristics
Type: Cargo ship
Tonnage: 11,960  GRT, 7,900  NRT
Length:
  • 152.03 m (498.8 ft) LOA
  • 145.01 m (475.8 ft) Lpp
Beam: 22.86 m (75.0 ft)
Draft: 9.45 m (31.0 ft)
Depth: 13.11 m (43.0 ft)
Installed power: Sulzer RND68M diesel engine 8,385 kW (11,244 hp)
Propulsion: Single screw
Speed: 15.75 knots (29.17 km/h; 18.12 mph)
Capacity: 24,345 m3 (859,700 cu ft)

SD18 (sometimes written SD-18 or SD 18) is the designation of a type of cargo ship, built by Austin & Pickersgill at their yard in Southwick, Sunderland, England in 1980–1981. Only three were built: Murree, Kaghan and Ayubia. The name SD18 stands for "shelter decker, 18,000 tons".

Cargo ship ship or vessel that carries cargo, goods, and materials onboard from one port to another

A cargo ship or freighter ship is a merchant ship that carries cargo, goods, and materials from one port to another. Thousands of cargo carriers ply the world's seas and oceans each year, handling the bulk of international trade. Cargo ships are usually specially designed for the task, often being equipped with cranes and other mechanisms to load and unload, and come in all sizes. Today, they are almost always built by welded steel, and with some exceptions generally have a life expectancy of 25 to 30 years before being scrapped.

Southwick, Sunderland former village and now suburb in the city of Sunderland, England

Southwick is a former village and now a suburb on the north banks of the River Wear in the city of Sunderland in the county of Tyne and Wear, historically in County Durham.

Contents

Description

In 1980–1981, Austin & Pickersgill shipyard in Sunderland built three cargo ships of type SD18 for the Pakistan National Shipping Corporation of Karachi. The type of ship was a development of the highly successful Liberty ship replacement, type SD14. [1] In the light of changing market conditions in the wake of the global containerization, the shipyard was unable to sell any further ships of this type. All three ships spent their entire periods of service with the Pakistan National Shipping Corporation.

Karachi Metropolis in Sindh, Pakistan

Karachi is the capital of the Pakistani province of Sindh. It is the most populous city in Pakistan, and fifth-most-populous city proper in the world. Ranked as a beta world city, the city is Pakistan's premier industrial and financial centre and is considered as the cultural, economic, philanthropic, educational, and political hub of the country. Karachi is also Pakistan's most cosmopolitan city. Situated on the Arabian Sea, Karachi serves as a transport hub, and is home to Pakistan's two largest seaports, the Port of Karachi and Port Bin Qasim, as well as the Pakistan's busiest airport, Jinnah International Airport.

Liberty ship cargo ships built in the United States during World War II

Liberty ships were a class of cargo ship built in the United States during World War II. Though British in concept, the design was adapted by the United States for its simple, low-cost construction. Mass-produced on an unprecedented scale, the Liberty ship came to symbolize U.S. wartime industrial output.

Murree sank in 1989 in a force 10 gale in the English Channel, the other two ships, Ayubia and Kaghan were scrapped at Gadani Beach in 2001 and 2004 respectively.

SD18 ships had aft superstructure and machinery, and four cargo holds with a capacity totalling 24,345 cubic metres (859,700 cu ft) grain (i.e. loose material). The most forward cargo hold had a hatch with McGregor single-pull hatch covers, the other three cargo holds had double hatches, which were also sealed with McGregor single-pull hatch covers. [2]

Cargotec Oyj is a Finnish company that makes cargo-handling machinery for ships, ports, terminals and local distribution. Cargotec was formed in June 2005 when Kone Corporation was split into two companies to be listed: Cargotec and new KONE.

Their cargo-handling gear comprised six derricks, two of 35t and four of 25t. [2]

Derrick lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys

A derrick is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys. Most derricks have at least two components, either a guyed mast or self-supporting tower, and a boom hinged at its base to provide articulation, as in a stiffleg derrick.

Tonne metric unit of mass

The tonne, commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms; or one megagram (Mg); it is equivalent to approximately 2,204.6 pounds, 1.102 short tons (US) or 0.984 long tons (UK). Although not part of the SI, the tonne is accepted for use with SI units and prefixes by the International Committee for Weights and Measures.

Power was produced by a single Sulzer RND68M two-stroke diesel engine, made under licence by Clark Hawthorn. The engine was directly coupled to the fixed pitch propeller and had an output of 8,385 kW (11,244 hp) MCR, propelling the ship at a speed of 15.75 knots (29.17 km/h; 18.12 mph). At the end of the 1980s Ayubia's main engine was replaced with a new engine of the same design built by Hitachi Zosen. [2] The onboard electricity was produced by three auxiliary diesel engines, each producing 450 kVA.

Sulzer (manufacturer) global Swiss industrial group based in Winterthur

Sulzer Ltd. is a Swiss industrial engineering and manufacturing firm, founded by Salomon Sulzer-Bernet in 1775 and established as Sulzer Brothers Ltd. in 1834 in Winterthur, Switzerland. Today it is a publicly traded company with international subsidiaries. The company's shares are listed on the Swiss Stock Exchange.

R. & W. Hawthorn Leslie and Company, Limited, usually referred to as Hawthorn Leslie, was a shipbuilder and locomotive manufacturer. The company was founded on Tyneside in 1886 and ceased building ships in 1982.

Hitachi Zosen Corporation Japanese industrial and engineering corporation

Hitachi Zosen Corporation is a major Japanese industrial and engineering corporation. It produces waste treatment plants, industrial plants, precision machinery, industrial machinery, steel mill process equipment, steel structures, construction machinery, tunneling machines, and power plants. Despite its name, Hitachi Shipbuilding no longer builds ships, having spun this business off in 2002.

List of SD18 type ships

SD18-type ships
Name Yard number IMO Number Delivered Whereabouts
Murree 1407 8000161 April 1981 Sank on 28 October 1989 during bad weather in the English Channel, 22 nautical miles (41 km; 25 mi) southeast of Start Point
Kaghan 1408 8000173 July 1981 Scrapped on 20 January 2004 at Gadani Beach, Pakistan.
Ayubia 1409 8000185 1981 Scrapped in October 2001 at Gadani Beach, Pakistan.

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References

  1. "The SD14 Story" (Information sheet). Tyne and Wear Museums: 1. (p. 2, p. 3)
  2. 1 2 3 Lloyd's Register of Ships 1990-1991. London: Lloyd's Register of Shipping. 1990. p. 397 (Ayubia).

Bibliography

International Standard Book Number Unique numeric book identifier

The International Standard Book Number (ISBN) is a numeric commercial book identifier which is intended to be unique. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.