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received a 20-horsepower locomotive, better suited to this ship's smaller dimensions. Each vessel had specially-designed screw propellers and rudders that could be retracted inside its hull, to prevent damage by ice. Other state-of-the-art installations were provided for the comfort of the officers and crew. Desalinators built into the 'Fraser' galley stoves connected to a large holding tank above the galley, provided fresh water from seawater. It was necessary for the ships to be able to produce large quantities of fresh water as the steam engines, when being used, consumed almost a metric tonne of water per hour. A tubular boiler apparatus in each ship, also designed by Fraser, conveyed hot water in pipes to heat the inside of the crew's cabins.
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