EMD DDM45
The
EMD DDM45 is a
narrow gauge diesel-electric locomotive built by
EMD. It has eight axles in two trucks, giving it a
D-D wheel arrangement. The name means a D-D locomotive, M for
meter gauge (the rails are a meter apart), 45 series. They were built for service in
South America. The Estrada de Ferro Vitória a Minas (EFVM) bought several in the early
1970s in order to expand their locomotive roster. The EFVM needed the most powerful single-engined locomotive available, and the
SD45 represented the highest-rated model that EMD had to offer at the time.
However, a big locomotive such as an SD45 with its three-axle trucks wasn't readily adaptable to the EFVM's narrow gauge trackage. The smaller
traction motors of the meter gauge locomotive were unable to handle the full current capacity from the 3,600 HP prime mover. And so, EMD proposed the meter gauge version of the Flexicoil-D four-axle
trucks, similar to those found under the domestic
EMD DD35,
EMD DD35A and
EMD DDA40X locomotive model, creating the DDM45 in the process. The additional 2 traction motors of this design allowed full power to be used.
Roster of DDM45s:
| Serial numbers | Country | Railroad | Numbers | Quantity | | 711197-711208 | February 1970 - May 1970 | 34671-34682 | Brazil | Vitoria a Minas | 801-812 | 12 |
| 711441-711448 | April 1970 - May 1970 | 36303-36310 | Brazil | Vitoria a Minas | 813-820 | 8 |
| 711871-711880 | March 1971 | 37278-37287 | Brazil | Vitoria a Minas | 821-830 | 10 |
| 712613-712621 | March 1973 - May 1973 | | Brazil | Vitoria a Minas | 831-839 | 9 |
| 713096-713119 | January 1974 - July 1974 | | Brazil | Vitoria a Minas | 840-863 | 24 |
| 713726-713735 | April 1976 - May 1976 | | Brazil | Vitoria a Minas | 864-873 | 10 |
| 748027-1 to -10 | May 1976 - June 1976 | | Brazil | Vitoria a Minas | 874-883 | 10 |