`  == Power/propulsion ==  Sturmvogel, I see your Template:Infobox ship begin/Usage guide, but I think it contradicts itself. It says ``prime movers`` should be under ``power``, but a steam engine is a prime mover, and that comes under ``propulsion``.  It's a combination of the boiler (the pressure and saturation of the steam) and the steam engine (the type of expansion used, the bore and throw of the cylinder, and other factors) that combine to produce the power generated.  I think the guidance works better for modern ships than steam ships. But I'm happy to let your edit stand.  Thanks for the interest.    `