The RMS Ebro was a notable ocean liner launched in Ireland in 1914 by Workman, Clark and Company of Belfast, designated as yard number 333. She measured approximately 450.3 feet (137.3 meters) in length, with a beam of 57.8 feet (17.6 meters) and a depth of 30.6 feet (9.3 meters). Her draught was 25 feet 6 inches (7.8 meters). The vessel's gross tonnage was 8,480 GRT, with a net tonnage of 5,174 NRT. Powered by twin quadruple-expansion engines driving twin screws, she could reach a speed of 15 knots (28 km/h). Originally coal-fired, she was converted to burn oil by August 1924. The Ebro was initially intended for the Royal Mail Steam Packet Company (RMSP) and served as one of their premier ships between Britain and the West Indies. She was regarded as one of the finest ships built for RMSP’s route, making her maiden voyage before being requisitioned in 1915 by the Royal Navy and renamed HMS Ebro. As an armed merchant cruiser (AMC), she was armed with six 6-inch guns, two 6-pounder guns, and depth charge launchers. She served with the 10th Cruiser Squadron from 1915 to 1917, patrolling the Faroe Islands, Iceland, and Norwegian Sea, and later escorting convoys between Sierra Leone and the UK until her decommissioning in late 1918. Post-war, the Ebro returned to commercial service, transferred to the Pacific Steam Navigation Company in 1922, operating routes between New York and South America via the Panama Canal. She was a key vessel in transatlantic and South American routes, including voyages to Valparaíso and serving as a relief ship during busy periods around 1921-1922. She was involved in incidents such as a collision with a lighter in 1922 and a fire in her cotton cargo in 1927. Throughout her career, she underwent conversions, notably from coal to oil fuel, and participated in wartime refugee evacuations, carrying numerous refugees from Europe during World War II. Renamed Princesa Olga in 1935 under Jugoslavenska Lloyd, and later Serpa Pinto in 1940 under Companhia Colonial de Navegação, she served routes between Lisbon, Africa, and South America. During WWII, she was involved in rescue operations, including the rescue of survivors from the German auxiliary cruiser Widder and refugees fleeing Nazi-occupied Europe. Her service was marked by resilience and versatility until her final voyage in 1955, when she was towed to Belgium to be scrapped. Her long service history highlights her significance in early 20th-century maritime operations, both in commercial and wartime contexts.

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