EMD SW1504
The EMD#SW1504 is a 1,500 hp (1,119 kW) diesel locomotive built by General Motors' Electro-Motive Division. The type was sold only to Mexico's national railroad, Ferrocarriles Nacionales de México; 60 examples were built between May and August 1973. With the breakup of NdeM, the locomotives have passed to the variety of successor railroad operators in Mexico, some have been sold to leasing companies in the USA.
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![](../I/m/HLCX_1524.jpg)
The SW1504 was basically an EMD#SW1500 with EMD#BlombergB bogie trucks, instead of the EMD#AARA or EMD#FlexicoilB bogie trucks offered with the EMD#SW1500. The Blomberg was longer than both the Flexicoil and AARA bogie trucks, requiring a 2 ft (610 mm) increase in overall length. The SW1504 were in many respects a transition between the prior SW1500 and later MP15DC models.
The spotting clues are the Blomberg trucks and the ventilation slots in the large box on the long hood between the rear stack and the front of the cab.
References
- Laundry, Mark. The Yard Limit: EMD SW1504. Retrieved on March 23, 2005.
- Marre, Louis A. & Pinkepank, Jerry A. (1989). The Contemporary Diesel Spotter's Guide. Waukesha, WI: Kalmbach Books. ISBN 0-89024-088-4. LCCN 88083625. OCLC 19959644.
- Trainweb.org. The Unofficial EMD Homepage. Retrieved on March 23, 2005.
- McCall, S.A. EMD Switcher Dimensional Data. Retrieved on March 23, 2005.