RMS Mauretania (1906) launched by the Duchess of Roxburghe. At the time of her launch, she was the largest moving structure ever built, and slightly larger in gross tonnage than "Lusitania". The main visual differences between "Mauretania" and "Lusitania" were that "Mauretania" was five feet longer and had different vents. "Mauretania" also had two extra stages of turbine blades in her forward turbines, making her slightly faster than "Lusitania". "Mauretania" and "Lusitania" were the only ships with direct-drive steam turbines to hold the Blue Riband; in later ships, reduction-geared turbines were mainly used. "Mauretania"s usage of the steam turbine was the largest application
German submarine U-226 German submarine U-226 German submarine "U-226" was a Type VIIC U-boat that served with the "Kriegsmarine" during World War II. Laid down on 1 August 1941 as yard number 656 at F. Krupp Germaniawerft in Kiel, she was launched on 18 June 1942 and commissioned on 1 August under the command of "Oberleutnant zur See" Albrecht Gänge. She began her service career in training with the 5th U-boat Flotilla. She was transferred to the 6th flotilla on 1 January 1943. The boat was a member of eleven wolfpacks. She carried out three patrols and sank one ship. She was sunk