The Pennsy had 2 A-B-A sets of FP7s painted tuscan with 5 stripes according to Paul Withers book on PRR EMD diesels. These were the first two sets. PRR had 40 FP7 A units and 14 F7 B units equiped with steam generators. The standard B unit had enough space for the passenger steam equipment. The FP7 was 4 feet longer than the standard F7 to accommodate the steam generator and water tank. These were considered dual purpose locos. All other F3s, F7s, and FP7s were painted in the Freight scheme.
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