How much horsepower was built into the RMS Titanic?

RMS Titanic’s propelling machinery was registered at 50,000 horsepower. Standard “normal full revolutions” in service was considered to be 78 revolutions per minute for a speed a little over 22½ knots. When running ahead at 83 revolutions per minute on her reciprocating engines, the entire power plant could develop as much as 59,000 horsepower, of which 18,000 horsepower would be contributed by the one centrally placed low-pressure Parsons turbine used to drive one of the ship's 3 propellers. When the engines were carrying the above number of revolutions, the ship would have made close to 24 knots through the water.

By combining reciprocating engines with a turbine, fuel usage on the Titanic could be reduced and motive power increased. This was done while using the same amount of steam. The RMS Titanic weighed almost 50,000 tons and could carry 3,500 people. Before it sunk, it was world-famous as the massive titan of the sea. Its multiple engines, powered by 159 coal furnaces used 14,000,000 pounds of coal carried on the ship to deliver the ship's horsepower (50,000) when required.