The SS Hertford was a German-built refrigerated cargo steamship launched in 1917 by Bremer Vulkan at Bremen-Vegesack, originally named Rheinland. She was completed in June 1920 after delays caused by World War I. The vessel measured approximately 520.7 feet (158.7 meters) in length, with a beam of 64.2 feet (19.6 meters) and a depth of 38.1 feet (11.6 meters). Her gross register tonnage was 11,305 GRT, and her net tonnage was 7,067 NRT. The ship's cargo holds provided an impressive 409,099 cubic feet (11,584 cubic meters) of refrigerated space, suitable for transporting perishable goods. Powered by two screws driven by triple expansion engines, Rheinland was later fitted with two Bauer-Wach exhaust turbines supplied by Bremer Vulkan by 1930, which increased her power to 1,290 NHP and her speed to 14 knots. Her navigation equipment was also upgraded to include wireless direction finding by that time. She was registered in London under official number 145104 and the call sign GDKB (later replaced by code letters KGFB). Initially operated by Hamburg America Line as Friesland, she was seized by the UK in 1920 under the Treaty of Versailles and sold to the Federal Steam Navigation Company, who renamed her Hertford. She served in a cargo liner route connecting New Zealand, Australia, and the UK, carrying refrigerated produce and general cargo. During her wartime service in World War II, Hertford continued her trade primarily unescorted, occasionally passing through the Panama Canal and stopping at ports such as Fremantle, Freetown, and Sydney. Her maritime significance is marked by her role in wartime logistics and her tragic sinking in 1942. On March 29, 1942, while zigzagging south of Halifax, she was torpedoed and sunk by the German U-boat U-571, resulting in the loss of four crew members. The ship's sinking led to a notable rescue effort, with survivors reaching land after several days in lifeboats, some suffering severe injuries. Hertford's service history underscores her importance as a refrigerated cargo vessel and her ultimate sacrifice during wartime maritime operations.

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