HMS Prince Charles was a 274 gross register tonnage collier that was repurposed by the Royal Navy during the First World War as a Q-Ship—a type of decoy vessel designed to lure and engage enemy submarines. Constructed originally as a merchant vessel, her conversion into a Q-Ship involved modifications that enabled her to serve as a deceptive threat to German U-boats. During her wartime service, Prince Charles achieved a notable distinction when, on 24 July 1915 off North Rona in the Outer Hebrides, she sank the German submarine SM U-36. Commanded by Lieutenant William Penrose Mark-Wardlaw, the vessel successfully executed the sinking alone, marking the first instance of a Q-Ship single-handedly destroying a U-boat. U-36, a Type 31 submarine commissioned in June 1914 and commanded by Captain E. Graeff, had already sunk numerous merchant ships. On the day of her sinking, U-36 had just boarded the Danish vessel SS Luise and was in the process of dumping cargo when Prince Charles approached. The disguised Q-Ship fired upon U-36 after it signaled to stop, and after a series of hits—most notably on the conning tower—the U-boat submerged and then resurfaced. Ultimately, U-36 was compelled to surrender but sank due to the damage sustained, resulting in the loss of 18 crew members, while 15 including her commander survived. For her actions, Lieutenant Mark-Wardlaw was awarded the Distinguished Service Order, and two crew members received Distinguished Service Medals. The merchant crew aboard Prince Charles received a monetary prize. Despite her wartime success, the vessel was later withdrawn from service as a Q-Ship because she was considered small, slow, and relatively unseaworthy. After the war, she returned to merchant service under various owners and names. She ultimately capsized and sank on 10 December 1944. Her service underscores the strategic role of converted merchant vessels in anti-submarine warfare during World War I.

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