Sinking of the RMS Titanic time of her entry into service on 2 April 1912, Royal Mail Ship (RMS) "Titanic" was the second of three sister ships, and was the largest ship in the world. She and her sister, , were almost one and a half times the gross register tonnage of Cunard's and , the previous record holders, and were nearly longer. "Titanic" could carry 3,547 people in speed and comfort, and was built on a hitherto unprecedented scale. Her reciprocating engines were the largest that had ever been built, standing high and with cylinders in diameter requiring the burning of of coal per
RMS Titanic largest number of which were in Third Class. The ship was considerably under capacity on her maiden voyage, as she could accommodate 2,453 passengers—833 First Class, 614 Second Class, and 1,006 Third Class. Usually, a high prestige vessel like "Titanic" could expect to be fully booked on its maiden voyage. However, a national coal strike in the UK had caused considerable disruption to shipping schedules in the spring of 1912, causing many crossings to be cancelled. Many would-be passengers chose to postpone their travel plans until the strike was over. The strike had finished a few days before "Titanic" sailed;