The introduction of steel passenger trains on the Pennsylvania at the turn of the twentieth century created a need for a more powerful passenger locomotive, and while most railroads began building larger Pacific 4-6-2 locomotives for this service, Alfred Gibbs, the PRR's General Superintendent of Motive Power, Lines East, chose to refine the proven Atlantic. Designed to be powerful yet lightweight, the E6 class became the ultimate development of its type, with a greatly enlarged and superheated boiler on a sturdy lightweight frame. From their debut in 1910 until the arrival of the first K4 Pacifics in 1920, the E6 fleet handled premier passenger assignments east of Harrisburg, Pennsylvania. Shifted to secondary and commuter service in the 1920s, they continued for decades, and by the 1950s only three remained, including No. 460, the last one built. No. 460 ended its career in commuter service on the Atlantic Division and Seashore Lines, including hauling the last passenger train down the original route of the Camden and Amboy, before retiring in 1955. Built by Pennsylvania Railroad at Juniata, Pennsylvania, in August 1914, No. 460 was immediately added to the PRR's historic collection after retirement and was officially added to the Railroad Museum of Pennsylvania's roster in 1979. Its most famous assignment came on June 11, 1927, when it raced newsreel footage of a Presidential reception for Charles Lindberg from Washington, D.C. to New York City for the International News Reel Company. A competing firm chartered an airplane for the same purpose, but the Pennsylvania converted a baggage car into a darkroom so the film could be developed en route and used one of its fastest locomotives, No. 460, to power the special train. Although the plane landed earlier, the film carried by the Pennsylvania had already been developed and reached theaters first, giving No. 460 the title "the train that beat the plane."