| Here is the fourth of 18 photos by Fred McLeod that are included in a souvenir brochure entitled "Horseshoe Curve; Pennsylvania Railroad; Altoona, Pa." Photo Caption: "Freight Diesels on Downgrade." Shown here is an A-B-B-A set of "EF" Class diesel-electric locomotives built by GM-EMD and rated at 1,500 horsepower each. They are pulling a mixed-cargo freight train down the Allegheny Mountains and around the Curve to the Eastbound Receiving Yards in Altoona. |