"15.8496"^^ . "1931Z"^^ . "The Pennsylvania Railroad's class O1 comprised eight experimental boxcab electric locomotivesbuilt in 1930 and 1931.They had the wheel arrangement classified as 4-4-4 in the Whyte notation (UIC: 2'B2'; AAR: 2-B-2). Although successful, they were not powerful enough for the railroad's increasingly heavy trains."@en . "4.572"^^ . . "3.048"^^ . "PRR O1"@en . "1930Z"^^ . "8"^^ .