The RMS (later HMT) Royal Edward was originally launched in 1907 as the RMS Cairo, an ocean liner built by the Fairfield Shipbuilding and Engineering Company of Govan, Scotland. She measured 526.1 feet (160.4 meters) in length, with a beam of 60.2 feet (18.3 meters) and a depth of 26.8 feet (8.2 meters). Her tonnage was 11,117 gross register tons (GRT) and 5,669 net register tons (NRT). Powered by three steam turbines driving three propellers, she could reach speeds of up to 19 knots (35 km/h; 22 mph). The vessel was designed to carry up to 1,114 passengers across three classes: 344 in first, 210 in second, and 560 in third class. Initially operated by the British-owned Egyptian Mail Steamship Company, Cairo served a mail route between Marseille and Alexandria. However, the service was short-lived, and the ship was laid up in 1909. Subsequently, she was sold in 1910 to the Canadian Northern Steamship Company, a subsidiary of the Canadian Northern Railway, and renamed Royal Edward. Along with her sister ship Royal George, she was refitted for North Atlantic service, operating between Avonmouth and Montreal in summer and Halifax in winter. With the outbreak of World War I, Royal Edward was requisitioned as a troopship. Notably, on 28 July 1915, she embarked 1,367 officers and men, primarily reinforcements for the British 29th Infantry Division destined for Gallipoli. During her voyage, she was intercepted off the coast of Greece by the German submarine UB-14, commanded by Oberleutnant zur See Heino von Heimburg. The submarine launched a torpedo that struck Royal Edward in the stern, causing her to sink within six minutes. Despite the rapid sinking, she managed to send an SOS, and rescue efforts by the hospital ship Soudan, French destroyers, and trawlers saved 661 men. The tragedy resulted in a high loss of life, with casualty estimates varying from around 132 to over 1,800, but official reports cite 864 casualties, including notable figures such as Victoria Cross recipient Cuthbert Bromley. Royal Edward’s sinking remains a significant maritime event during WWI, highlighting the dangers faced by troopships and the impact of submarine warfare.

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