EMD SD9

EMD SD9
Type and origin Power type Diesel-electric Builder General Motors Electro-Motive Division (EMD) Model SD9 Build date January 1954 – June 1959 Total produced 515
Specifications Configuration: ​  • AAR C-C Gauge 4 ft 8+1⁄2 in (1,435 mm) Prime mover EMD 567C Cylinders V16
Performance figures Power output 1,750 hp (1.3 MW)
Career Disposition Many have been rebuilt, and are still in service.

An EMD SD9 is a 6-axle diesel locomotive built by General Motors Electro-Motive Division between January 1954 and June 1959. Power was provided by an EMD 567C 16-cylinder engine which generated 1,750 horsepower (1.3 MW). This model is, externally, similar to its predecessor, the SD7. The principal spotting feature are the classification lights on the ends of the locomotive, above the number board. The SD9's classification lights are on a small pod, canted outward. The last phase of construction had a modified carbody similar to the SD18 and SD24, and used two 48-inch cooling fans instead of four 36-inch cooling fans.

Four hundred and seventy-one examples of this locomotive model were built for American railroads, and 44 for export.

Original Buyers

Owner	Quantity	Numbers	Notes
Atlanta and St. Andrews Bay Railroad	3	503-505
Baltimore and Ohio Railroad	10	765-774
Chicago, Burlington and Quincy Railroad	80	325-374, 430-459
Colorado and Southern Railroad	23	820-842
Central of Georgia Railroad	6	202-207
Chicago and Illinois Midland Railroad	5	50-54
Chicago and North Western Railway	14	1701-1710, 1721-1724
Chicago, Milwaukee, St. Paul and Pacific Railroad	14	2224-2237
Chile Exploration	5	901-905
Duluth, Missabe and Iron Range Railroad	74	101-174	110 ex EMD (demonstrator) 5591
Denver and Rio Grande Western Railroad	10	5305-5314
Elgin, Joliet and Eastern Railroad	3	600-602
Great Northern Railway	27	573-599
Korail (Korea)	29	101-129
Nickel Plate Road	20	340-359
Orinoco Mining (Venezuela)	10	1011-1020
Pennsylvania Railroad	25	7600-7624
RSMX Reserve Mining	6	1220-1225
Soo Line Railroad	1	2381
Southern Pacific Railroad	150	5340-5444, 5449-5493

Preservation

Some SD9 locomotives can be found in museums and on tourist lines.

Colorado & Southern 839, later Burlington Northern 6234, was donated by successor Burlington Northern Santa Fe Corp. to the Minnesota Transportation Museum. It now operates on the museum's Osceola and St Croix Valley Railway. 6234 is an example of the last SD9 locomotives produced, which used the SD18 carbody. The Nevada Northern Railway uses an ex-SP SD9 occasionally to pull their passenger trains.

References

• Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. ISBN 978-0-89024-026-7.
• Sarberenyi, Robert. EMD SD9 Original Owners. Retrieved on August 27, 2006