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THE ENGINE ROOM

The engine room was divided into two sections, one given to the reciprocating engines and the other to the turbines. There were two sets of the reciprocating kind, one working each of the wing propellers through a four-cylinder triple expansion, direct acting inverted engine. Each set could generate 15,000 indicated horse-power at seventy-five revolutions a minute. The Parsons type turbine takes steam from the reciprocating

engines, and by developing a horse-power of 16,000 at 165 revolutions a minute works the third of the ship's propellers, the one directly under the rudder. Of the four funnels of the vessel three were connected with the engine room, and the fourth or after funnel for ventilating the ship including the gallery.

Practically all of the space on the Titanic below the upper deck was occupied by steam-generating plant, coal bunkers and propelling machinery. Eight of the fifteen water-tight compartments contained the mechanical part of the vessel. There were, for instance, twenty-four double end and five single end boilers, each 16 feet 9 inches in diameter, the larger 20 feet long and the smaller 11 feet 9 inches long. The larger boilers had six fires under each of them and the smaller three furnaces. Coal was stored in bunker space along the side of the ship between the lower and middle decks, and was first shipped from there into bunkers running all the way across the vessel in the lowest part. From there the stokers handed it into the furnaces.

One of the most interesting features of the vessel was the refrigerating plant, which comprised a huge ice-making and refrigerating machine and a number of provision rooms on the after part of the lower and orlop decks. There were separate cold rooms for beef, mutton, poultry, game, fish, vegetables, fruit, butter, bacon, cheese, flowers, mineral water, wine, spirits and champagne, all maintained at different temperatures most suitable to each. Perishable freight had a compartment of its own, also chilled by the plant.