The E6 class Atlantic type (4-4-2) was developed by the PRR to haul heavier all-steel passenger cars entering service in the 1900s.
The first E6, #5075, was delivered from the Juniata Shops in December 1910, followed soon after by #89 and #1092.
The latter two, equipped with superheaters, significantly improved performance (30% increase in power, 23% to 46% drop in water and coal consumption). By late 1913, the design had reached the point of full fleet production, and eighty more of the class were built at the Juniata Shops in 1914. The first production locomotive, #1794, hauled PRR's top "name" trains, including the Broadway Limited and Manhattan Limited.
The E6s weighs 240,000 lbs, 133,000 lbs on its 80" drivers, with a 29' 7" engine wheelbase and 7' 7" driver wheelbase. The cylinders are
23½" x 26". With a 54.7 sq ft grate area and 218 sq ft firebox, total
heating surface is 3,577 sq ft including 721 sq ft superheating and, operating at a boiler pressure of 205 psi, the E6s delivered 31,275 lbs tractive effort.
The Lindbergh Special
#460 was the last E6 built and initially assigned to passenger service east of Harrisburg, PA. After 1920, when replaced on premier runs by larger K4s, the E6s were relegated to secondary passenger services although, because of their speed, they were occasionally assigned to special charter runs. It was for this that #460 earned fame in June 1927. The International News Reel Company engaged the PRR to rush their film to New York of the 11th June reception of Charles Lindbergh by President Calvin Coolidge in Washington, DC. To steal an advantage over their competitors, who flew their film to New York for processing, International leased a B60 baggage car from the PRR and converted it to a laboratory where the film was developed, edited, and copied en route.
#460 was chosen because it had just been overhauled at PRR's Wilmington, DE, shops. With orders to run as fast as safety allowed, the special arrived at Manhattan Transfer at 3.10 pm, completing the two hundred and sixteen mile run in two hours and fifty-six minutes: a new record. A DD1 electric then made the final run to Penn Station, where ten canisters of processed film were rushed by taxi under police escort to local cinemas. Within fifteen minutes of the Lindbergh Special's arrival, scenes of the Washington ceremony were being shown on Manhattan screens, a full hour before competitors', originating the legend that #460 had outraced the airplanes.
In 1937, #460 was loaned to Pennsy's subsidiary, the Long Island Rail Road. Two years later, it returned to PRR's New York Division, although still occasionally loaned to the LIRR. In 1942, it transferred to the Atlantic Division and then, in 1953, was leased to Pennsylvania-Reading Seashore Lines. Back on the PRR Atlantic Division in January 1954, #460 headed a railfan excursion from Newark to Atlantic City, NJ, the last passenger train to travel between South Amboy and Camden, the original route of the "John Bull". #460 then resumed commuter services until October 1955, when it was retired. On 11th January 1956, it was dropped from service and transferred to the PRR collection at Northumberland, PA. #460 moved to the museum in 1969.
It is currently undergoing restoration at the museum's shops.