ALCo's PA-1 and PA-2 were diesel locomotives built by the American Locomotive Company in a partnership with General Electric in Schenectady, New York during the years 1947 to 1953. These A1A-A1A locomotives were powered by ALCo's model 244 16-cylinder engine. The earlier PA-1 had a 2,000 hp (1,500 kW) engine and the PA-2 was slightly more powerful at 2,250 hp (1680 kW). The PA series was designed to be used in passenger service, whereas the companion FA model was a freight hauler.

The Erie Railroad purchased 12 PA-1s in 1949 and two PA-2s in 1951. The railroad did not purchase any PB units. The PAs were used to haul passenger trains, including the Phoebe Snow and Lake Cities, over Erie's New York to Chicago route, both before and after the 1960 merger that created the Erie Lackawanna Railway, and until the railroad was sold to Conrail in 1976. Distinguishing features of EL's PA locomotives include the MU receptacle and wireway mounted above the headlight, the louvered nose vents, and a "firecracker" antenna.

Requires the Boston & Albany DLC package for Train Simulator Classic, available from Steam at:
https://store.steampowered.com/app/2202028/Train_Simulator_Boston__Albany_Boston__Springfield_Route_AddOn/

To install, first unzip the download, which contains a single RWP file. Install the RWP using the Package Manager feature of the program Utilites.exe which resides in you RailWorks folder. Done! There is no need to copy any other files from your B&A folders and none of your existing B&A files will be overwritten.

One PreLoad consisting of an A-A light locomotive arrangement is provided for Quick Drive service. Or you can always make your own scenarios; in fact you are encouraged to do so! The locomotives appear in the scenario editor as "G-TraX ALCo PA E-L."

Note from ricksan to librarian: the download archive contains two geo files, both of which I own and which I authorize to be included in the package. This is necessary because in addition to this being a repaint package, certain physical details of the locomotive have been added or reworked.