RMS Mauretania (1906) and were requested by the British government to become armed merchant cruisers, but their huge size and massive fuel consumption made them unsuitable for the duty, and they resumed their civilian service on 11 August. Later, due to lack of passengers crossing the Atlantic, "Mauretania" was laid up in Liverpool until May 1915 at the time that "Lusitania" was sunk by a German U-boat. "Mauretania" was about to fill the void left by "Lusitania", but she was ordered by the British government to serve as a troop ship to carry British soldiers during the Gallipoli Campaign. She avoided becoming prey
Ship of the line War (1854–1856). She was decommissioned in 1874. The largest sailing three-decker ship of the line ever built in the West was the French "Valmy", launched in 1847. She had right sides, which increased significantly the space available for upper batteries, but reduced the stability of the ship; wooden stabilisers were added under the waterline to address the issue. "Valmy" was thought to be the largest sort of sailing ship possible, as larger dimensions made the manoeuvre of riggings impractical with mere manpower. She participated in the Crimean War, and after her return to France later housed the French Naval Academy