This Broadway Limited Streamlined 4-6-4 Hudson steam locomotive is based on the shrouded Hudson used to haul the Commodore Vanderbilt. In the summer of 1934, J-1e Hudson #5344 was pulled from service and sent to West Albany to be fitted with the first sheet metal shroud in America. Painted gun-metal gray with aluminum trim, the locomotive was named "Commodore Vanderbilt", after the successful US businessman who previously owned the NYC railroad. Developed by the Case School of Applied Science, the shroud covered the locomotive and tender. The shroud was not just for looks, but rather was well-planned and functional. Hinged panels made maintenance points accessible, and a grilled recess on top of the cowling aided the updraft of smoke. Two major benefits of streamlining were improved air flow and improved insulation. Engineers estimate a 2% aid to air flow and the shell certainly minimizes heat loss. Unfortunately the disadvantages of increased weight and extra maintenance tended to outweigh the benefits. The Commodore Vanderbilt had her inaugural trip on February 19, 1935. After working for about 8 months, she was sent to West Albany Shops for further improvements. Boiler pressure was increased to 250 lbs, roller bearings were applied to the side rods, and disc drivers replaced the original spoked drivers. #5344 maintainted this appearance until July 1939, when she was returned to the shops again and given a shroud similar to the Dreyfuss Hudsons. This model has full Paragon4 sound and DCC for realistic, reliable sound and motor control. The Paragon4 sound system works with all Broadway Limited Rolling Thunder(TM) advanced sound systems. Other features include a smooth-running flywheel-equipped drive, roadname-appropriate detailing and magnetic knuckle couplers. The 4-6-4 Hudson can be operated on all DCC systems as well as on standard DC railroads (with limited sound functionality). This model has wheels profiled to operate on Code 70 and larger rail and curves of 18" radius but larger curves are recommended. The Commodore Vanderbilt is one of many Broadway Limited HO Scale Paragon4 locomotives.