Olympic-class ocean liner a dining room. "Britannic" provided third-class passengers more comfort than its two sister ships. First of the "Olympic"-class liners, "Olympic" was launched on 20 October 1910 and commissioned on 14 June 1911. She made her maiden voyage on 14 June 1911, under the command of Captain Edward J. Smith to great fanfare and acclaim. On 20 September of the same year, while under the command of a harbour pilot she was involved in a collision with the cruiser in the port of Southampton, leading to her repair back at Harland and Wolff and delaying the launch of her sister "Titanic".
Olympic-class ocean liner began in 1911 after the commissioning of "Olympic" and "Titanic" launch. Following the sinking of "Titanic", the two remaining vessels underwent many changes in their safety provisions. All three of the "Olympic"-class ships had nine decks, seven of which were for passenger use. From top to bottom, the decks were: Propulsion was achieved through three propellers: two outboard or wing propellers had three blades, while the central propeller had four. The two lateral propellers were powered by reciprocating steam triple expansion, while the central shaft was driven by a steam turbine. All power on board was derived from a total