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Great Western was an iron-strapped, wooden, side-wheel paddle steamer, with four masts to hoist the auxiliary sails. The sails were not just to provide auxiliary propulsion, but also were used in rough seas to keep the ship on an even keel and ensure that both paddle wheels remained in the water, driving the ship in a straight line.
The paddle-wheels were 17 m (55 ft 9 in) in diameter and the four-bladed screw-propeller was 7.3 m (23 ft 11 in) across. The power came from four steam engines for the paddles and an additional engine for the propeller. The cylinders for the paddle engines measured 1.87 m (74 in) bore and 4.3 m (14 ft) stroke.
A typical river paddle steamer from the 1850s. Fall Line's steamer Providence, launched 1866 Finlandia Queen, a paddle-wheel ship from 1990s in Tampere, Finland [1]. A paddle steamer is a steamship or steamboat powered by a steam engine driving paddle wheels to propel the craft through the water.
The 1913-built Goethe was the last paddle steamer on the River Rhine. [14] Previously the world's largest sidewheeler with a two-cylinder steam engine of 700 hp (520 kW), a length of 83 m (272 ft) and a height above water of 9.2 m (30 ft), Goethe was converted to diesel-hydraulic power during the winter of 2008/09. [citation needed]
Steam engines had to be designed with the power delivered at the bottom of the machinery, to give direct drive to the propeller shaft. A paddle steamer's engines drive a shaft that is positioned above the waterline, with the cylinders positioned below the shaft.
A marine steam engine is a steam engine that ... that had a side-lever engine was the Cunard Line's paddle steamer RMS ... Isambard Brunel, and the Great ...
The engine produced a total of 500 indicated horsepower (370 kW) and the ship had a maximum speed of 12 knots (22 km/h; 14 mph). The ship could carry a maximum of 450 long tons (460 t) of coal, enough to steam 2,897 nautical miles (5,365 km; 3,334 mi) at an average speed of 6.7 knots (12.4 km/h; 7.7 mph).
The Sadler engine was a house-built table engine installed in a single-storey engine house with integral boiler; it replaced one of the horse-drives to the chain pumps. This engine was replaced in 1807 in the same house by another, more powerful, table engine made by Fenton, Murray and Wood of Leeds and, in turn, in 1830 by a Maudslay beam engine.