What is prr 520?

PRR 520 is a class of steam locomotive that was operated by the Pennsylvania Railroad (PRR) in the United States. It was a 4-6-2 "Pacific" type of locomotive, which means it had four leading wheels, six driving wheels, and two trailing wheels.

The PRR 520 was designed and built by the American Locomotive Company in 1916, and it was used primarily for passenger trains on the PRR's mainline. It had a maximum speed of around 70 miles per hour and could generate up to 71,000 pounds of tractive effort.

It is also worth noting that this locomotive was part of a larger class of Pacific-type locomotives, which included other variations on the original design. The PRR 520 itself underwent some variation and updates during its operational life, including modifications to its boiler and firebox.

The PRR 520 was eventually retired from service in the 1950s, as the PRR began to phase out its steam locomotives in favor of diesel engines. Today, there are a handful of PRR 520 locomotives that have been preserved in museums and historical organizations.