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Paddle Steamer Uri
Society
Main Category
Sub Category
Era
Date Created
Location Country
us
Coordinates
47.051528, 8.309943
Address1
Lake Navigation Company
Address2
Lucerne Boat Pier, PO 4265
CH-60
City
Lucerne
Country

This is the oldest operating vessel with a diagonal, compound steam engine, with disc valve gear. Operating at a higher pressure than the oscillating-cylinder engines then used in lake steamers, this type of engine was more powerful and efficient, as well as smaller. The compound engine, built by Sulzer brothers of Winterthur, uses super-heated steam from the boilers in two stages-high and low pressure-before exhausting it into a condenser. The engine produces 650 horsepower, turning two paddle wheels.

oldest operating vessel with a diagonal, compound steam engine, with disc valve gear
Image Credit
Courtesy Wikicommons/Coronado1992 (CC BY-SA 3.0)
Image Caption
Paddle Steamer Uri
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