The Parmele & Sturges EP-3 is a great old model! It's heavy and rugged and it feels like a real piece of machinery rather than a piece of jewelry. According to William Middleton in his wonderful book When the Steam Railroads Electrified, the New Haven's EP-3 (delivered 1931 by GE) with twin-motor geared-quill drive "established the basic configuration for a heavy high-speed electric locomotive that was employed for several more orders of New Haven electrics as well as for the Pennsylvania's GG-1." In fact, Pennsy borrowed an EP-3 for part of the test program that led to the GG-1.
The EP-4 (1938) was very similar, but with a streamlined carbody; they were rated at 3600 hp as opposed to an EP-3's 3000 hp.
However, neither the EP-3s nor the EP-4s ever ran off third rail power; they all operated under New Haven catenary (and under PRR catenary during the tests referred to).
