First built in 1918 and 1919,
the Heavy 2-10-2 was one of the largest engines in the USRA series. It was the
only major engine type used on Pennsy rails that was not built in Altoona.
It was used by many railroads,
including PRR, Erie, C&S, Bessemer and Lake Erie, Illinois Central,
Central of Georgia, Atlantic Coast Line, Missouri Pacific, Chicago, Illinois
Midland, PCC & StL, Colorado & Southern, Chicago Burlington and
When the N2s arrived on the
Pennsy rails it looked foreign with its radial stay fireboxes, non-standard
tenders and cabs, and the light-duty trailing trucks. It also had smokebox
centered headlights and overhanging bells, but that was acceptable since these
were for Lines West.
The basic design manufactured
by Alco, Baldwin and Brooks, was identical from one loco to the next but each
railroad ordered variations and made modifications. The only drawback to
the 2-10-2 loco was that it was built at the end of the drag freight era.