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The EMD SD40 is a 6-axle diesel locomotive built by General Motors Electro-Motive Division between January 1966 and August 1972.

File:EMD SD40 KCSdeM 3029.jpg

DesignEdit

Like its predecessor in EMD's catalog, the SD35]], the SD40 is a high-horsepower, six-motor freight locomotive.

In 1966, EMD updated their locomotive catalog with entirely new models, all powered by the new 645 diesel. These included six-axle models SD38, SDP40 and SD45, in addition to the SD40. All shared standardized components, including the frame, cab, generator, trucks, traction motors, and air brakes. The primary difference was the power output: SD38 = SD38 = 2,000 hp (1,490 kW) from a non-turbocharged V16, SD40 = 3,000 hp (2,240 kW) from a turbocharged V16, and SD45 = 3,600 hp (2,680 kW) from a turbocharged V20]].

Original OwnersEdit

856 examples of this locomotive model were built for American railroads, 330 were built for Canadian railroads, 72 were built for Mexican railroads, 6 were built for the Guinea-Boke Project, and 4 SD40Ms riding on 5'3" gauge trucks were exported to Brazil.

Built by EMD at La Grange, Illinois

Built Serial Phase Railroad Road numbers Quantity Notes
2/66 31007-31018 Ia1 GM&O 901-912 12
1/66-2/66 31263-31282 Ia1 CNW 867-886 20 No d/b, 867 first SD40 built
2/66-3/66 31285-31349 Ia12,Ia2 PRR 6040-6104 65
4/66 31414-31438 Ia2 UP 3000-3024 25
1/66-5/66 31491-31569 Ia1,Ia2 SP 8400-8478 79 Numbers out of sequence
4/66 31575-31589 Ia2 UP 3025-3039 15
4/66 31760-31765 Ia2 CNW 887-892 6 No d/b
6/66 31766 Ia2 ASAB 506 1 No d/b
6/66 31799 Ia2 GM 10 1 No d/b
5/66-6/66 31899-31928 Ia2 NW 1580–1609 30 High short hood
7/66-8/66 31929-31948 Ia2 C&O 7450-7469 20
3/66-5/66 32036-32055 ATSF 1700–1719 20
6/66-9/66 32088-32091 Ia2 L&N 1225–1228 4
8/66-9/66 32092-32100 Ia2 CGW 401-409 9
10/66-11/66 32101-32114 Ib1 KCS 600-613 14 Some equipped with Locotrol
8/66 32134-32138 Ia2 WM 7470-7474 5
9/66 32141-32148 Ia2 CRR 3000-3007 8
9/66 32161-32169 Ia2 GM&O 913-921 9
4/67 32228-32231 RFFSA 3701-3704 4 Brazil, Broad gauge
9/66 32314 Ia2 CNW 893 1 No d/b
10/66-12/66 32400-32434 Ib1 UP 3048-3082 35
2/67 32686-32688 Ib2 CNW 894-896 3 No d/b
3/67-4/67 32968-32987 Ib2 MP 700-719 20 No d/b
5/67 33154-33160 Ic C&O 7475-7481 7 Drop grabs on nose
5/67 33161-33173 Ic B&O 7482-7497 13 Drop grabs on nose
12/67 33244-33249 IIa2 IC 6000-6005 6 No d/b
5/68 33385-33403 NdeM 8503-8521 19
10/67 33516-33519 IIa2 C&S 875-878 4
4/68-6/68 33671-33680 IIb_ SP 8479-8488 10
1/68-2/68 33771-33784 IIb1 MP 720-733 14 No d/b
3/68 33895-33897 NdeM 8500-8502 3
4/68 33918-33926 IIb1 C&S 879-887 9
8/68 33958-33965 IIb_ KCS 614-621 8 Some equipped with Locotrol
11/68 34104-34105 IIb_ WM 7495-7496 2
9/68 34177 IIb_ CRR 3008 1
2/69 34504-34523 IIb_ MP 734-753 20 No d/b
9/68 34742-34747 IIb_ CRR 3009-3014 6
4/69 34758-34762 IIb_ L&N 1229–1233 5
4/69 34775-34778 IIb_ B&O 7497-7500 4
4/69 34779-34784 IIb_ C&O 7501-7506 6
4/69-5/69 34889-34898 IIb_ SOO 736-745 10 No d/b
8/69 34939-34951 IIb_ IC 6006-6018 13 SD40A: 70'8" frame, 5000-gallon fuel tank
7/69 34967-34971 IIb_ WM 7445-7449 5
8/69 35184-35195 IIb_ GTW 5900-5911 12 No d/b
6/70 35493-35498 IIb2 KCS 622-627 6 Some equipped with Locotrol, numbers out of sequence
5/71 35605-35619 IIc NW 1610–1624 15 High short hood
1/70 35685-35689 IIb2 IC 6019-6023 5 SD40A: 70'8" frame, 5000-gallon fuel tank
1/70 35725-35740 IIb2 MP 754-769 16 No d/b
1/70 35831-35839 IIb2 GTW 5912-5920 9
3/71 35840-35847 IIc KCS 628-635 8 Some equipped with Locotrol
4/70 35948-35952 IIb2 L&N 1234–1238 5
3/70 36099-36102 IIb2 SOO 746-749 4 No d/b
4/70 36124-36129 IIb2 DE 001-006 6 Numbers out of sequence
6/70 36696-36705 IIb2 C&O 7507-7516 10
7/70 36746-36755 IIb2 C&O 7517-7526 10
8/70-9/70 36809-36818 IIb2 L&N 1239–1248 10
9/70 36887-36895 IIb2 GTW 5921-5929 9 No d/b
12/70-1/71 36896-36926 IIb2 PC 6240-6270 31
1/71-2/71 36997-37010 IIb2 PC 6271-6284 14
3/71 37204-37213 IIc C&O 7527-7536 10
4/71 37355-37370 IIc SOU 3170-3185 16 High short hood
6/71 37417-37422 IIc CRR 3015-3020 6
5/71 37425-37431 IIc SOO 750-756 7 No d/b
6/71 37538-37541 IIc CRR 3021-3024 4
3/71-4/71 37543-37562 IIc MP 770-789 20 No d/b
8/71-10/71 37639-37928 IIc UP 3083-3122 40
5/71 38203-38212 IIc L&N 1249–1258 10
3/71 38363 IIc KCS 636 1
10/71-11/71 5801-1 - 5801-24 IIc BN 6300-6324 25
12/71 38893-38932 III NdeM 8536-8575 40
12/71-1/72 7375-1 - 7375-15 III SOU 3186-3200 15 High short hood
7/72 5817-1 - 5817-2 III DE 013-014 2
7/72 5818-1 - 5818-3 III DE 015-017 3
8/72 37894-37899 BOKE 101-106 6 Companie de Bauxite du Guinea

Built by GMD at London, Ontario

Built Serial Phase Railroad Road numbers Quantity Notes
7/66 A2133-A2164 Ia2 CP 5500-5531 32 Nose brakewheel
12/66 A2177-A2209 CP 5532-5564 33
9/67 A2246-A2253 CN 5000-5007 8
10/67-12/68 A2260-A2327 CN 5008-5075 68 No d/b
7/68 A2328-A2333 QNSL 200-205 6
2/69-11/69 A2335-A2369 CN 5076-5110 35 No d/b
11/69-12/69 A2370-A2391 CN 5111-5132 22
12/69-4/71 A2392-A2434 CN 5133-5175 43 No d/b
4/71-11/71 A2493-A2542 CN 5176-5225 50 No d/b
6/71 A2543-A2557 QNSL 206-220 15
10/71 A2561-A2563 AC 180-182 3
11/71-12/71 A2588-A2602 CN 5226-5240 15 No d/b
1/72 A2603-A2612 NdeM 8576-8585 10 Low-nose headlight, bell between number boards

Phases are as listed by Robert Sarberenyi.

Derivatives and ExperimentalEdit

The SD40 was succeeded by an upgraded Dash 2 version called the SD40-2. The very first test bed SD40, EMD 434, constructed on an SD35 frame in July 1964 was in active service until retired by Canadian National Railway in March 2009 and donated to the Monticello Railway Museum in July 2009, albeit having been upgraded to an "SD40-2R", as Illinois Central 6071. 18 customized SD40s were built for the Illinois Central Railroad as model SD40A, using the longer SDP45 frame, which allowed for a larger 5000 gallon fuel tank.

The SD40E is an EMD SD50 rebuilt by the Norfolk Southern Railway and derated to 3000 HP.

SD40-Series Production Timeline Edit

EMD SD40EMD SD40

ReferencesEdit

Template:No footnotes

Template:EMD SDs

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