Three-drum boilers are a class of water-tube boiler used to generate steam, typically to power ships. They are compact and of high evaporative power, factors that encourage this use. Other boiler desi
Three-drum boiler, casing removed
A flat of three Yarrow boilers
A Yarrow boiler, with the casing removed
A Royal Navy sailor cleans the water tubes inside a ship's boiler with a ribbon brush, c. 1939–1945.
The Nelson class was a class of two battleships of the British Royal Navy, built shortly after, and under the terms of, the Washington Naval Treaty of 1922. They were the only British battleships buil
Three-drum boiler
…flow speed through the superheater to 150 ft/s (45.72 m/s), avoiding the problems of tube distortion and metallurgical failure. New boilers for the Nelson-class battleships and the Kent-class cruisers could achieve a superheat of 200–250 °F (93–121 °C) throughout the operating power range at 250 psi (1.7 MPa…
Aerial view of Nelson before 1939
Nelson fires a salvo during gunnery trials in 1942