# Talk:Warrior-class cruiser

The text says "The cruisers were powered by two 4-cylinder triple-expansion steam engines". A multiple-expansion steam engine where the steam circulates through three successively larger cylinders is called a triple-expansion engine, an engine where the steam circulates through four cylinders is called a quadruple-expansion engine. Now which is it? Death Bredon (talk) 16:45, 5 April 2024 (UTC)

Steam engines for warships were different and there was no space for a necessarily large fourth cylinder. What they did was split the low-pressure cylinder into two at the same pressure to economize on space while extracting more energy from the medium-pressure steam.--Sturmvogel 66 (talk) 08:06, 6 April 2024 (UTC)