One of the Titanic's enormous boiler rooms was recreated for the film. The ship had cylindrical (Scotch) boilers lined up 5 abreast, 10 to a boiler room, in 5 huge boiler rooms. Despite the vessel's great size (the largest ship afloat at the time by a few hundred tons) and luxurious appointments, she did not embody especially advanced technology. She did have a low-pressure turbine for the center propeller, running off exhaust steam from the huge reciprocating engines which turned the two wing screws. And she ran on plain old coal: in fact, there was a coal strike at Southampton when she sailed on her ill-fated maiden voyage, so most of her coal had already come across the Atlantic in the Olympic's bunkers! A slow bunker fire simmered throughout the voyage, only to be quenched by the fatal inundation of sea water.
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