Railroad | QuantityA units | QuantityB units | Road numbers | Notes |
---|
Electro-Motive Corporation (demonstrator) | 1 | — | 1939 | to SAL 3013 |
Electro-Motive Corporation (demonstrator) | — | 1 | 1939B | renumbered EMC 1940B,to SAL 3104 |
Seaboard Air Line Railway | 13 | — | 3000–3012 | |
Seaboard Air Line Railway | — | 4 | 3100–3103 | |