megamoto:

Between 1947–1948, Baldwin built three unique coal-fired steam turbine-electric locomotives, designed for passenger service on the Chesapeake and Ohio Railway (C&O). The 6,000 horsepower units which were equipped with Westinghouse electrical systems were 106 feet long, making them the longest locomotives ever built for passenger service. The cab was mounted in the center, with a coal bunker ahead of it and a backwards mounted boiler behind it.