The
Pennsylvania Railroad
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. It was named ...
's no. 2512 was a single
de Glehn Compound
A compound locomotive is a steam locomotive which is powered by a compound engine, a type of steam engine where steam is expanded in two or more stages. The locomotive was only one application of compounding. Two and three stages were used in sh ...
4-4-2 "Atlantic" type locomotive the railroad imported from France in 1904.
Background
After seeing the success of compound locomotives designed by
Alfred de Glehn in use on various French railways, the Pennsylvania believed that such a design could inspire their engineers and so decided to purchase one of de Glehn's designs. While the engine would be grouped with the
class E locomotives as it was a 4-4-2 arrangement, it did not receive a formal classification, as it was a single experimental design.
The engine was displayed as one of the PRR System exhibits at the
Louisiana Purchase Exposition
The Louisiana Purchase Exposition, informally known as the St. Louis World's Fair, was an World's fair, international exposition held in St. Louis, Missouri, United States, from April 30 to December 1, 1904. Local, state, and federal funds tota ...
in 1904. It was also tested on one of the other exhibits, the Locomotive Testing Plant, which was installed at St. Louis to show its contribution to the advancement of the science of locomotive engineering. The de Glehn was tested with seven other types of locomotive chosen to cover a variety in the essential principles of design. The performance of the de Glehn, as measured on the Test Plant, was used for comparison with later PRR locomotive classes such as the K29 and K2SA.
The de Glehn was found to be too light for use by the PRR and saw little service beyond their shops. The engine was retired by 1912, and scrapped.
References
External links
Images of this locomotive (in German) Retrieved 25 April 2022
Steam locomotives of the United States
4-4-2 locomotives
Scrapped locomotives
Unique locomotives
de Glehn
Railway locomotives introduced in 1916
Standard gauge locomotives of the United States
Individual locomotives of the United States
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