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The Q2 locomotive was 78% more powerful than the locomotives that PRR had in service at the time, and the company claimed the Q2 could pull 125 freight cars at a speed of 50 mph (80 km/h). [5] These were an improved version of the previous Q1 class, which was a 4-6-4-4 dual-purpose engine instead of a 4-4-6-4 freight engine.
The Pennsylvania Railroad's Q2 class were the only locomotives ever to use this arrangement. These were duplex locomotives, in which both sets of driving wheels were mounted in a common, rigid locomotive frame.
Class A was the 0-4-0 type, an arrangement best suited to small switcher locomotives (known as "shifters" in PRR parlance). Most railroads abandoned the 0-4-0 after the 1920s, but the PRR kept it for use on small industrial branches, especially those with street trackage and tight turns.
Pennsylvania Railroad class E2; Pennsylvania Railroad class E2b; Pennsylvania Railroad class E2c; Pennsylvania Railroad class E3b; Pennsylvania Railroad E6 class; Pennsylvania Railroad class E1; Pennsylvania Railroad class E44
The Pennsylvania Railroad (reporting mark PRR), legal name The Pennsylvania Railroad Company, also known as the "Pennsy", was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania.
Pennsylvania Railroad: River Front Railroad: PRR: 1876 1903 Pennsylvania Railroad: Rochester, Beaver Falls and Western Railway: PRR: 1889 1890 Pennsylvania Company: Rochester, Nunda and Pennsylvania Railroad: 1873 1877 Sold at foreclosure; no property in Pennsylvania Rochester and Pittsburgh Railroad: B&O: 1881 1885 Pittsburgh and State Line ...
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The Pennsylvania Railroad class Q1, #6130, was a single experimental steam locomotive designed for dual service. The locomotive entered service in 1942, and retired in 1949 after accumulating a relatively low 165,000 service miles.