The EMD F3 is a 1,500-horsepower B-B freight- and passenger-hauling diesel locomotive produced between July 1945 and February 1949 by General Motors’ Electro-Motive Division.

Class A was the 0-4-0 type, an arrangement best suited to small switcher locomotives (known as "shifters" in PRR parlance). Most railroads abandoned the 0-4-0 after the 1920s, but the PRR kept it for use on small industrial branches, especially those with street trackage and tight turns.

The PRR acquired hundreds of EMD F-units beginning in July of 1947. Complicating matters for railfans and modelers alike are the many "phases" of units that the railroad purchased. This document intends to point out the spotting features across the various models and phases. There were 1807 F3/F5 units built, of which the PRR purchased 146 (8%).

Nov 16, 2005 · The class F3 Mogul such as the #839 was built by Baldwin in 1901 and used the round-top or radial-stay firebox. I believe they all were standard gauge and used in regular freight service.

All PRR “F” units were 1500 HP engines. They all had dynamic brakes. The original units were delivered without antennas. Radio telephone antennas were added in 1947‐1948 and were removed in 1965 when they were replaced with standard radios.

Jan 22, 2005 · Seeing that in January 1966 the PRR had 136 inoperable road freight units (this included streamlined freight cab/booster units and low-nose high horsepower B-B and C-C units) I wonder if, by the 1967 date, the F3 units were still out on the road. The remaining F3 cab units were in the series 1402-1425; no data on which 15 of these remained.

Aug 23, 2018 · The Lionel green (8952/3) and tuscan (8970/1) AA PRR F3s from 1979 both had B units which could be purchased individually-the green variation actually had two different B units-one with a horn (8164) and one without a horn ( 8059).

Feb 20, 2025 · The F3 was offered with eight different gearing ratios, ranging from 56:21 for passenger service (top speed of 102 mph while offering 21,000 pounds of continuous tractive effort) to 65:12 for freight duties (a top speed of 50 mph …

Jan 26, 2016 · This website lists the PRR's diesel roster. In the "Class" column, it will tell you what the locomotive was mostly used for, which is explained in the chart at the bottom of the page. For instance, an EF15 classification for an F3 unit designates it as built by EMD (E), used in freight service (F) and rated for 1500 horsepower (15).

Jan 10, 2018 · The F3 used a 16-cylinder 567B series diesel engine developing 1,500 hp (1.1 MW) at 800 rpm. The 567 was designed specifically for railroad locomotives, a supercharged 2 stroke 45 degree V type with 567 cu in (9.29 L) displacement …