The SS Clan Fraser was a British cargo steamship constructed by the Greenock & Grangemouth Dockyard Co Ltd in Greenock, with her launch occurring on December 20, 1938, and her completion in February 1939. As a Cameron-class vessel, she was designed for versatile cargo operations, powered by a formidable propulsion system comprising 20 corrugated furnaces with a total grate area of 402 square feet, which heated five single-ended boilers with a combined heating surface of 17,780 square feet. These boilers supplied steam at 220 pounds per square inch to a set of three-cylinder triple-expansion engines, with exhaust steam feeding low-pressure turbines, all built by JG Kincaid & Co of Greenock. The combined power output was rated at 1,043 NHP, driving twin screws—each powered by one triple-expansion engine and one turbine—making her a relatively fast merchant vessel of her time. Registered in Glasgow, Clan Fraser was designed for independent operation and initially sailed solo during the early years of World War II, undertaking voyages between the Indian subcontinent, southern Africa, Australia, Britain, and the Mediterranean. Her operational profile included participation in notable wartime convoy operations, such as Convoy WN 13 and OB 222, and she was involved in Operation Collar, a convoy aimed at supplying Malta and Alexandria. Her route took her through dangerous waters, notably during the Battle of Cape Spartivento, where she and her sister Clan Forbes continued to Malta despite Italian interference. In 1941, Clan Fraser was operating in the Mediterranean, carrying stores and munitions through the Suez Canal to Greece. During the German invasion of Greece, she was anchored in Piraeus harbor, still unloading her cargo of arms and 200 tons of TNT when she was attacked by German Luftwaffe bombers led by Hans-Joachim Herrmann. At 0315 hours on April 6, 1941, she was hit and destroyed by an explosion caused by her munitions, sinking in the harbor with six crew members killed and nine wounded. The explosion was so powerful that it was felt 15 miles away in Athens, causing widespread damage and destruction in the port area, marking her as a casualty of the intense maritime conflict in the Mediterranean during the early years of the war.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.