The C&O, working alongside the Baldwin Locomotive Works, Westinghouse, and General Electric outshopped what was known as the Class M-1 in 1947. The locomotive, given #500, carried a 2-C1+2-C1-B (using the Whyte Notation this would be a 4-8-0-4-8-4), was 106 feet long, weighed 428 tons (856,000 pounds), and boasted 6,000 horsepower. It was an impressive and imposing machine featuring a shrouded, streamlined carbody with a pleasing livery of grey, yellow, and deep blue. Following #500, two more would arrive in 1948 and given #501 and #502.
According to Thomas Dixon, Jr.'s book, "Chesapeake & Ohio Railway: A Concise History And Fact Book," the Class M-1's worked by employing a standard boiler, fed by coal, to power electrified traction motors on the axles thus propelling the locomotive forward. In essence the M-1 was a combination steam and diesel locomotive using a boiler and traction motors but lacking a diesel engine. Departing from traditional steam designs the M-1's boiler was situated to the rear while a coal tender, streamlined as part of the entire locomotive, was located ahead of the cab which more or less sat in the middle of the entire contraption. In any event, the design was mechanically complex and during initial tests in 1947 the #500 experienced a variety of problems.
Part of the issue was the turbines themselves which, while practical in marine applications, could not tolerate the jarring actions and heavy beating experienced during standard service on a railroad. There was also the problem of dirt, dust, and other particles fouling equipment, including the traction motors. Despite claims by its builders that the M-1 would require less maintenance via fewer moving parts and greater fuel savings the C&O was never able to operate the locomotives all the way from Washington to Cincinnati without some sort of mechanical troubles.
In 1948 the M-1's promoted the new Chessie by parading an exhibition train around the entire C&O system, allowing folks to tour the equipment during stops at various towns and cities. Unfortunately, the train never ran despite all of the cars and locomotives being purchased and readied for service. Young had wanted the Chessie running by 1946 but a large backlog of postwar orders delayed the cars from arriving for two years at which point steeply declining ridership essentially forced the C&O to end the idea. The cars later went to operate on the regional Pere Marquettes for a few years while the unsuccessful M-1's continued to run on other trains during 1948. The three units were eventually sent back to Baldwin and scrapped in 1950.
Perhaps the failure of the M-1's and the Chessie was all of the best. While the C&O was struggling to get the train in service rival Baltimore & Ohio launched a new streamliner along the same corridor during January of 1947 known as the Cincinnatian. It featured a stunningly beautiful streamlined 4-6-2 Pacific with matching equipment in a deep blue, silver,and white livery. Alas, the market was so sparsely populated the train saw little success and the B&O soon shifted the train to a Cincinnati - Detroit routing where it saw much higher ridership.
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