A DD35 sits next to some early UP high side coal gons, at Yermo, California. Basically two GP35's on a single frame, to get 5000 hp out of a single unit to meet UP's demands for high horsepower en... (more)

Apparently E unit 954-B was along on this odd consist just to supply steam heat to business car 110 as U.P. 83 West (DD35A and GE U-50 No. 32) lead the extra across Kansas west of Menoken, headed... (more)

A pair of EMDs from the horsepower race of 1960s are air tested and ready to depart Provo for Salt Lake City. The UP 83, a DD35A, was blt. in June 1965 while the UP 3646, an SD45, was blt. in Marc... (more)

The cab version of DD35A was built for UP only. The earlier built booster units were used by UP and SP, SP had only three booster units in service. Each of these twin engined biests had a power of... (more)