B&OCT SW 2
- Group: B&OCT 2
- Railroad class: DE-3/DE-2/DS-2e
- Phase: I
- Builder number: EMD 653
- Builder date: November, 1936
- Horsepower: 600
- Weight: 202,600 lbs
- Prime mover: Non-turbocharged Winton V-6
- Main generator: General Electric GT534E1
- Traction motors: Four General Electric GE287E51
- Production: 76 units
- Baltimore & Ohio ownership: 1 unit
B&OCT 2 > B&O 199 > B&O 8422
Built as Baltimore & Ohio Chicago Terminal 2 in November, 1936. It was renumbered B&O 199 in August, 1942. It was rebuilt as an SWm at the B&O Glenwood Shops at Pittsburgh, Pennsylvania, in June, 1955, with a new EMD V12 567B prime mover. The hood was significantly raised and the new prime mover was placed on a new engine bed above the old Winton bed. It was renumbered B&O 8422 in the general renumbering of January-March, 1957, and traded in to EMD on December 1, 1970.
This locomotive is unique in that it is the only known Phase I SW, and lacks “falsies” at the step wells below the frame. This was added to every other EMD welded frame switcher until April, 1949. The steps on this unit bolt directly to the frame and are not welded in any way.
B&O assigned this unit to DE-3 class when built, and reassigned class DS-2 in 1940. It was yet again reclassed as DS-2e in 1943.