The SS Donegal was a passenger ferry built in 1904 by Caird & Company of Greenock, serving the Midland Railway of England. As a sister ship to the Antrim, she was designed for route operations between Heysham Port in Lancashire and Belfast Harbour. The vessel was powered by a triple-expansion steam engine rated at 386 nominal horsepower, enabling her to reach a speed of approximately 13 knots (24 km/h). Her physical dimensions and detailed specifications are not provided in the source, but her engine and service role indicate she was a typical early 20th-century passenger and freight ferry of her size. Initially serving as a regular ferry, Donegal operated on the Heysham-Belfast route until her requisition for wartime service during the First World War. During the war, she was converted into a hospital ship, a common practice for ferries requisitioned by the military. As a hospital ship, she was involved in transporting wounded personnel from France back to Great Britain. Notably, after the UK government ceased marking hospital ships to avoid German targeting, Donegal operated unmarked, increasing her vulnerability. On 17 April 1917, while carrying 610 lightly wounded soldiers from Le Havre to Southampton, Donegal was torpedoed by the German U-boat UC-21 approximately 19 nautical miles south of the Dean light vessel. Despite having a Royal Navy escort and prior survival from a German submarine attack earlier in the year, she was sunk with the loss of 29 wounded soldiers and 12 crew members. The sinking was marked by notable acts of heroism, including Lieutenant H. Holehouse’s effort to rescue a wounded soldier from the water. Two crew members, Archie Jewell and Arthur John Priest, had previously survived the sinking of RMS Titanic and other maritime incidents, highlighting the perilous wartime service. Priest survived the sinking of Donegal, while Jewell was lost. Her wreck remains on the seabed, lying intact on her port side at a depth of around 45 to 50 meters. The loss of the Donegal underscores the dangers faced by hospital ships during WWI and her role as a maritime casualty of enemy action.

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