| Here is page six of a 22-page booklet published by the Pennsylvania Railroad entitled "Modern Power For Today's Trains." It was issued originally during July of 1949. Partial Caption: "For fast, through passenger service." Prominent here is PRR engine #5755, an AFP-20 built by the American Locomotive Company as an AP-20 in November of 1947, rated at 2,000 horsepower, later regeared and reclassified as an AFP-20, and retired in September of 1962 after just 15 years of revenue service. |