"PKP Pt47"@en . "1948Z"^^ . "PKP Class Pt47 is a Polish steam locomotive. Related to the successful PKP class Pt31 class, the main difference is the addition of circular tubes in the fire chamber, thereby significantly increased boiler performance. This class also featured a superheater and many have mechanical stokers to feed coal into the firebox. 180 locomotives were built in total.Although heavy, the Pt47 is powerful and fast."@en . "180"^^ . . "1951Z"^^ . "23.835"^^ . . . .