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  2. Pennsylvania Railroad 5550 - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad_5550

    Pennsylvania Railroad 5550 (PRR 5550) is a mainline duplex drive steam locomotive under construction in the United States. With an estimated completion by 2030, the locomotive will become the 53rd example of the Pennsylvania Railroad's T1 steam locomotive class and the only operational locomotive of its type, [7] as well as the largest steam locomotive built in the United States since 1952.

  3. Pennsylvania Railroad class T1 - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad_class_T1

    6110, 6111, 5500-5549, 5550: Locale: Western Pennsylvania, Ohio, Indiana, Illinois: First run ... The Pennsylvania Railroad continued to promote the T1's as the ...

  4. Pennsylvania Railroad - Wikipedia

    en.wikipedia.org/wiki/Pennsylvania_Railroad

    1870: "Pennsylvania Central" is split into lines east (renamed Pennsylvania Railroad) ... building a new operational example of a class T1 engine numbered 5550, ...

  5. Category:Pennsylvania Railroad locomotives - Wikipedia

    en.wikipedia.org/wiki/Category:Pennsylvania...

    Pages in category "Pennsylvania Railroad locomotives" The following 79 pages are in this category, out of 79 total. ... Pennsylvania Railroad 5550; Pennsylvania ...

  6. Duplex locomotive - Wikipedia

    en.wikipedia.org/wiki/Duplex_locomotive

    A nonprofit group known as the T1 Trust is in the process of constructing a new duplex locomotive, a T1-class engine known as Pennsylvania Railroad 5550, intending to utilize design improvements from the postwar steam era not used or seldom tested on pre-existing T1s in the hope of creating better performance characteristics. The estimated year ...

  7. Category:Duplex locomotives - Wikipedia

    en.wikipedia.org/wiki/Category:Duplex_locomotives

    Pennsylvania Railroad 5550; Pennsylvania Railroad class Q1; ... Pennsylvania Railroad no. 1320; Pennsylvania Railroad Q2 class; S. Saxon XV HTV This page ...

  8. 4-4-4-4 - Wikipedia

    en.wikipedia.org/wiki/4-4-4-4

    Rearward cylinders and gear of the sole N-1 The Pennsylvania Railroad's controversial class T1 duplex locomotive. The first locomotive built with this arrangement was the Baltimore and Ohio Railroad's sole class N-1 #5600 George H. Emerson, constructed at the B&O's own Mount Clare Shops in May 1937. To reduce the fixed wheelbase, this ...

  9. List of Pennsylvania railroads - Wikipedia

    en.wikipedia.org/wiki/List_of_Pennsylvania_railroads

    Sold by the Pennsylvania Railroad to the New York Central & Hudson River Railroad in 1901 Susquehanna Connecting Railroad: ERIE: 1896 Susquehanna and Eagles Mere Railroad: Susquehanna, Gettysburg and Potomac Railway: WM: 1871 1874 Hanover Junction, Hanover and Gettysburg Railroad: Susquehanna and New York Railroad: S&NY LV: 1902 1942 Lehigh ...