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Chrysopolis (sidewheeler)
''Chrysopolis'', a famous side-wheel steamboat that ran between Sacramento and San Francisco from 1860 to 1875 when it was rebuilt as a ferry that continued in service for more than 60 years.
''Chrysopolis'' was built in San Francisco, by shipbuilder John Gunder North in his new shipyard in the Potrero District. Launched in 1860, it was a side-wheel paddle steamer of 245 feet long with a 40-foot beam, displacing 1050 tons. It was equipped with a 1,357 horsepower, single cylinder, vertical-beam engine powered by two 32 ton boilers. It had two side-wheels 32 feet in diameter with 8 foot buckets (the wooden blades of a paddle wheel). It could carry 1,000 passengers and 700 tons of cargo at great speed. On December 31,1861 it made the record setting run for a steamboat over the 120 mile distance between Sacramento and San Francisco in 5 hours and 19 minutes, making an average speed of 19.8 knots.
==Rebuilt as Ferry "Oakland"==
''Chrysopolis'' was rebuilt in 1875 by Patrick Henry Tiernan as the San Francisco Bay ferry ''Oakland''. Tiernan turned it into a double ended ferry-boat, cutting it in two and extending her length to 282 feet 7 inches overall with depth of hold amidships, 17.5 feet.〔( E. M. North, Evolution of Shipping and Shipbuilding in California VI, February 1899, The Overland Monthly, Vol. XXXIII, January - June 1899, Overland Monthly Publishing Company, San Francisco, 1899. )〕 It was destroyed by fire in 1940.〔MacMullen, Jerry, Paddle-Wheel Days in California, Stanford University Press, Stanford, 1970.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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