Just a slight correction here, the 911 is an RS36, or spec. number DL701A, which is an 1800 h.p. refinement of the RS11, spec. number DL701. An RS32, which is almost identical, except for an extra set of air filters behind the cab on each side, is a 2000 h.p. DL721, which sold only to the New York Central and Southern Pacific. Several of the NYC units were sold, by Conrail, to the Chicago and North Western. This L&N locomotive was a Tennessee Central original. By the way, a C420 is a DL721A
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