EMD SD9

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EMD SD9
Power type Diesel-electric
Builder General Motors Electro-Motive Division (EMD)
Model SD9
Build date January 1954 – June 1959
Total production 471
Gauge 4 ft 8½ in (1435 mm)
Prime mover EMD 567C
Cylinders V16
Power output 1,750 hp (1.3 MW)
Disposition some still in service, becomeing somewhat rare. Many have been rebuilt.

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 1750 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 2 48-inch cooling fans instead of 4 36-inch cooling fans.

471 examples of this locomotive model were built for American railroads:


[edit] Roster of original orders

The following information is sorted by railroad and road number:

United States orders
Order number Date Serial numbers Railroad Road numbers Quantity
5421 January 1956 21046, 21047 Atlanta and St. Andrews Bay Railroad 503-504 2
5562 April 1958 24062 Atlant and St. Andrews Bay Railroad 505 1
5376 December 1954 20121-20128 Baltimore and Ohio Railroad 765-766, 772, 767-771 8
5395 April 1955 20451, 20452 Baltimore and Ohio Railroad 773-774 2
5313 March 1954 18984-19003 Chicago, Burlington and Quincy Railroad 325-344 20
5399 June-October 1955 20555-20584 Chicago, Burlington and Quincy Railroad 345-374 30
5547 October 1957 23609-23618 Chicago, Burlington and Quincy Railroad 430-439 10
5549 August-October 1957 23619-23638 Chicago, Burlington and Quincy Railroad 440-459 20
5482 December 1956-January 1957 22403-22413 Colorado and Southern Railroad 820-830 11
5589 April 1959 25011-25015 Colorado and Southern Railroad 831-835 5
5589 April 1959 25156-25162 Colorado and Southern Railroad 836-842 7
5394 March-June 1955 20445-20450 Central of Georgia Railroad 202-207 6
5406 November 1955 20691-20695 Chicago and Illinois Midland Railroad 50-54 5
5339 May 1954 19506, 19507 Chicago and North Western Railway 1701, 1702 2
5326 May 1954 19498-19502 Chicago and North Western Railway 1703-1707 5
5338 May 1954 19503-19507 Chicago and North Western Railway 1708-1710 3
5405 October-November 1955 20687-20690 Chicago and North Western Railway 1721-1724 4
5456 March-April 1956 21727-21735 Duluth, Missabe and Iron Range Railroad 101-109 9
5525 January-March 1957 23099-23118 Duluth, Missabe and Iron Range Railroad 111-130 20
5555 February-April 1958 23911-23937 Duluth, Missabe and Iron Range Railroad 131-157 27
5555 April 1958 24487 Duluth, Missabe and Iron Range Railroad 158 1
5600 April-May 1959 25259-25274 Duluth, Missabe and Iron Range Railroad 159-174 16
5507 July 1957 22808-22817 Denver and Rio Grande Western Railroad 5305-5314 10
5526 March 1957 23120-23122 Elgin, Joliet and Eastern Railroad 600-602 3
6533 July 1955 20655 General Motors Electro-Motive Division (EMDX) 5591 (became DMIR 110) 1
5285 February 1954 19340-19345 Great Northern Railway 573-578 6
5431 May 1956 21247-21251 Great Northern Railway 579-583 5
5488 January 1957 22486-22491 Great Northern Railway 584-589 6
5564 April 1958 24092-24099 Great Northern Railway 590-597 8
5577 April 1958 24100, 24101 Great Northern Railway 598, 599 2
5287 January-February 1954 18769-18782 Milwaukee Road 2224-2237 14
5532 March-April 1957 23155-23174 Nickel Plate Road 340-359 20
5567 November1957-January 1958 24167-24191 Pennsylvania Railroad 7600-7624 25
5567 Cancelled order 24192-24216 Pennsylvania Railroad (25)
5389 June 1955 19989-19991 RSMX 1220-1222 3
5423 May 1956 21066 RSMX 1223 1
5485 December 1956 22417 RSMX 1224 1
5603 June 1959 25436 RSMX 1225 1
5375 December 1954 20120 Soo Line Railroad 2381 1
5322 March-May 1954 19429-19460 Southern Pacific Railroad 5340-5371 32
5381 January-May 1955 20223-20237 Southern Pacific Railroad 5372-5386 15
5382 Cancelled order 20238-20241 Southern Pacific Railroad (4)
5365 February 1954-April 1955 19928-19958 Southern Pacific Railroad 5387-5417 31
5365 April 1955 19983-19988 Southern Pacific Railroad 5418-5423 6
5365 January-May 1955 20202-20222 Southern Pacific Railroad 5424-5444 21
5434 January-February 1956 21274-21288 Southern Pacific Railroad 5449-5463 15
5435 February-May 1956 21289-21318 Southern Pacific Railroad 5464-5493 30
Export orders
Order number Order date Serial numbers Country Railroad Road numbers Quantity
701157-701159 March 1956 21484-21486 Chile Chile Exploration 901-903 3
701186, 701187 May 1956 21562, 21563 Chile Chile Exploration 904, 905 2
701530-701549 May-July 1957 23481-23500 Korea KNR 101-120 20
701638-701646 October 1957 23897-23905 Korea KNR 121-129 9
701322-701325 May 1956 21942-21945 Venezuela Orinoco Mining 1011-1014 4
701495-701497 May 1957 23400-23402 Venezuela Orinoco Mining 1015-1017 3
701763-701765 May 1958 24574-24576 Venezuela Orinoco Mining 1018-1020 3

[edit] References



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6- and 8-axle diesel-electric locomotives built by GM-EMD
Six-axle road power: SD7, SD9, SD18, SD24, SD28, SD35, SDP35, SD38, SD38AC, SD38-2, SD39, SDL39, SD40, SD40X, SD40A, SD40-2, SD40-2W, SD40T-2, SD40-2S, SDP40, SD45, SD45X, SD45-2, SD45T-2, SDP45, SD50, SD60, SD70, SD70M, SD70MAC, SD70M-2, SD70ACe, SD75M, SD75I, SD80MAC, SD90MAC
Eight-axle road power: DD35, DD35A, DDA40X, DDM45
See also: List of GM-EMD locomotives
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