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 survey ship Meteor German survey ship Meteor Meteor was a German survey vessel, noted for her survey work in the Atlantic Ocean between 1925 and 1927. Handed over to the Soviet Union following World War II, the ship was renamed Ekvator. Her ultimate fate is not known. Her keel was laid at the Kaiserliche Werft at Danzig in February 1914 and "Meteor" was launched in January 1915. Originally intended to become a gunboat for the Imperial German Navy's colonial service she was not finished during the First World War due to limited need for lightly armed vessels. After the war the uncompleted hull