SS Clan Forbes (1938)

==Table of Contents==
Career: UK
Name: Clan Forbes
Namesake: Clan Forbes
Owner: Clan Line Steamers Ltd, London
Operator: Cayzer, Irvine Co Ltd, London
Port of Registry: Glasgow
Builder: Greenock Dockyard Co, Scotland
Yard Number: 434
Launched: 8 September 1938
Completed: December 1938
Identification: UK official number 165951 call sign GPGB
Fate: scrapped 1959
===General characteristics===
Class and type: Cameron-class steamship
Tonnage: 7529 GRT
Length: 463.7 feet (141.3 m) p/p
Beam: 63 feet (19 m)
Draught: 29 feet 1 1/4 inches (8.87 m)
Depth: 29.9 feet (9.1 m)
Installed power: 1730 NHP
Propulsion: two 3-cylinder triple-expansion engines; two low-pressure exhaust steam turbines; twin screw
Speed: 17.5 knots (32.4 km/h)
Sensors and processing: direction finding equipment; echo sounding device; gyrocompass
Armament: DEMS
Notes: Sister ships: Clan Buchanan, Clan Cameron, Clan Campbe, Clan Chattan, Clan Cumming, Clan Ferguson, Clan Fraser, Clan Lamont, Clan Menzies, HMS Engadine
==Description==
The SS Clan Forbes was a British cargo steamship. She was built for Clan Line Steamers Ltd as one of its Cameron-class steamships. She was launched at Greenock in 1938, served in the Second World War and was scrapped in Hong Kong 1959.
==Building==
Clan Forbes was launched on 8 September 1938 and completed that December. She was one of a sub-class of 11 Cameron-class ships of identical dimensions, built in 1937–41 by the Greenock Dockyard Company on the River Clyde at Greenock in Renfrewshire: Clan Buchanan, Clan Cameron, Clan Campbell, Clan Chattan, Clan Cumming, Clan Ferguson, Clan Fraser, Clan Forbes, Clan Lamont, Clan Menzies and HMS Engadine.
Clan Forbes had 20 corrugated furnaces with a combined grate area of 402 square feet (37 m2) heating five single-ended forced draught boilers with a combined heating surface of 17,780 square feet (1,652 m2) that supplied superheated steam at 220 lbf/in2 to a pair of three-cylinder triple-expansion steam engines. Each reciprocating engine had a 48 inches (1.2 m) stroke; the cylinder bores were 26 inches (0.66 m) high pressure, 42 inches (1.1 m) intermediate pressure and 68 inches (1.7 m) low pressure. Steam exhausted from the low-pressure cylinders then drove a pair of low-pressure steam turbines with double reduction gearing and hydraulic couplings to twin propeller shafts. J G Kincaid and Company of Greenock built the four engines, whose combined power was rated at 1,370 NHP.
==War Service==
On 16 August 1940 Clan Forbes was damaged by bombs in a Luftwaffe air raid whilst berthed at Port of Tilbury. November 2013 she was one of the three merchant ships that took part in Operation Collar, a convoy to supply Malta and Alexandria. An attempt by Italian forces to intercept the ships resulted in the Battle of Cape Spartivento, after which Clan Forbes and her sister Clan Fraser continued to Malta. She spent some of her time disguised as the submarine depot ship HMS Maidstone, having been fitted with a dummy funnel.
==Post-War==
Surviving the war, she continued in Clan Line service until 1959. She was then sold for scrap, and arrived at Hong Kong on 6 August 1959 to be broken up.
==Refrences==
Lloyd's Register, Steamers and Motorships. London: Lloyd's Register. 1941. Retrieved 20 December 2013.
2. Cameron, Stuart; Strathdee, Paul; Biddulph, Bruce; Stewart, Gavin. "Clan Forbes". Clyde-built Ship Database. Retrieved 20 December 2013.
3. Bax, John; Robins, Terry. "Part Six". Clan Line. Merchant Navy Officers. Retrieved 19 December 2013.
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