Atlas has announced HO scale EMD SD24 locomotives, with or without DCC and sound, in the blue/yellow scheme with as-delivered numbers good for 1960-1969/1970, with three road numbers available.
The SD24 was an EMD built 2400 horsepower engine using the sixteen-cylinder 567D3 engine. Santa Fe owned 80 of these units, built between 1959 and 1960. Initially, they were numbered in the 900-979 series and were renumbered in 1969/1970 to the 4500-4579 series. Three years later, the units were rebuilt into the SD26 class and received the yellow warbonnet scheme.
Thanks to Michael Flick for this update. Eric Hiser added historical note. Photo courtesy of Atlas.