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EMD SD40

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EMD SD40
Southern Pacific 7342, an SD40R, in 1980
Type and origin
Power typeDiesel-electric
BuilderGM Electro-Motive Division (EMD)
General Motors Diesel (GMD)
ModelSD40
Build dateJanuary 1966 – August 1972
Total produced1,268
Specifications
Configuration:
 • AARC-C
Gauge4 ft 8+12 in (1,435 mm) standard gauge
5 ft 3 in (1,600 mm), Brazil
Driver dia.40 in (1,016 mm) diameter
Length65 ft 8 in (20.02 m)
over the coupler pulling faces; 65 feet 9+12 inches (20.053 m) on some units starting early 1968.
Width10 ft 0 in (3.05 m)
Height15 ft 5+14 in (4.71 m)
Loco weight360,000 lb (160 t)
Fuel capacity3,200 US gal (12,000 L; 2,700 imp gal)
Lubricant cap.243 US gal (920 L; 202 imp gal)
Coolant cap.295 US gal (1,120 L; 246 imp gal)
Sandbox cap.56 cu ft (1.6 m3)
Prime moverEMD 16-645E3
Engine typeV16 diesel
Aspirationturbocharged
Alternatormain : AR-10
auxiliary : D14
Generator(?)
Traction motorsD-77
Cylinders16
Loco brakeIndependent air\
optional: dynamic brakes
Train brakesAir, schedule 26-L
Performance figures
Maximum speed83 mph (134 km/h)
Power output3,000 hp (2,240 kW)
Career
LocaleNorth America
South America
Africa

The EMD SD40 is an American 6-axle diesel-electric locomotive built by General Motors Electro-Motive Division between January 1966 and August 1972. 1,268 locomotives were built between 1966 and 1972. In 1972, an improved version with new electronics was developed and marketed as a new locomotive, the SD40-2.

Design

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Like its predecessor in EMD's catalog, the SD35, the SD40 is a high-horsepower, six-axle freight locomotive. The SD40 is a member of EMD's long-running Special Duty class of locomotives, which all are built with 6 axles.

In 1966, EMD updated its locomotive catalog with entirely new models, all powered by the new 645 diesel engine. These included six-axle models SD38, SD40, SDP40 and SD45. All shared standardized components, including the frame, cab, generator, trucks, traction motors, and air brakes. The primary difference was the power output: 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 owners

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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 ft 3 in (1,600 mm) gauge trucks were exported to Brazil. They were manufactured at McCook, Illinois.

Built Serial Phase Railroad Road numbers Quantity Notes
6/66 31766 Ia2 ASAB 506 1 No d/b
3/66-5/66 32036-32055 ATSF 1700–1719 20 1708/5008 preserved
10/71-11/71 5801-1 - 5801-25 IIc BN 6300-6324 25
5/67 33161-33173 Ic B&O 7482-7494 13 Drop grabs on nose, 7482–7490 to CNJ
4/69 34775-34778 IIb_ B&O 7497-7500 4
8/66-9/66 32092-32100 Ia2 CGW 401-409 9
1/66-2/66 31263-31282 Ia1 CNW 867-886 20 No d/b, 867 first SD40 built
4/66 31760-31765 Ia2 CNW 887-892 6 No d/b
9/66 32314 Ia2 CNW 893 1 No d/b
2/67 32686-32688 Ib2 CNW 894-896 3 No d/b
7/66-8/66 31929-31948 Ia2 C&O 7450-7469 20
5/67 33154-33160 Ic C&O 7475-7481 7 Drop grabs on nose
4/69 34779-34784 IIb_ C&O 7501-7506 6
6/70 36696-36705 IIb2 C&O 7507-7516 10
7/70 36746-36755 IIb2 C&O 7517-7526 10
3/71 37204-37213 IIc C&O 7527-7536 10
10/67 33516-33519 IIa2 C&S 875-878 4 To Burlington Northern Same numbers.
4/68 33918-33926 IIb1 C&S 879-887 9 To Burlington Northern Same numbers. 879 to BNSF.
9/66 32141-32148 Ia2 CRR 3000-3007 8
9/68 34177 IIb_ CRR 3008 1
9/68 34742-34747 IIb_ CRR 3009-3014 6
6/71 37417-37422 IIc CRR 3015-3020 6
6/71 37538-37541 IIc CRR 3021-3024 4
4/70 36124-36129 IIb2 DE 001-006 6 Numbers out of sequence
7/72 5817-1 - 5817-2 III DE 013-014 2
7/72 5818-1 - 5818-3 III DE 015-017 3
6/66 31799 Ia2 GM 10 1 No d/b
2/66 31007-31018 Ia1 GM&O 901-912 12
9/66 32161-32169 Ia2 GM&O 913-921 9
8/69 35184-35195 IIb_ GTW 5900-5911 12 No d/b
1/70 35831-35839 IIb2 GTW 5912-5920 9
9/70 36887-36895 IIb2 GTW 5921-5929 9 No d/b
12/67 33244-33249 IIa2 IC 6000-6005 6 No d/b
8/69 34939-34951 IIb_ IC 6006-6018 13 SD40A: 70 ft 8 in (21.54 m) frame,
5,000-US-gallon (19,000 L; 4,200 imp gal) fuel tank
1/70 35685-35689 IIb2 IC 6019-6023 5 SD40A: 70 ft 8 in (21.54 m) frame,
5,000-US-gallon (19,000 L; 4,200 imp gal) fuel tank
10/66-11/66 32101-32114 Ib1 KCS 600-613 14 Some equipped with Locotrol
8/68 33958-33965 IIb_ KCS 614-621 8 Some equipped with Locotrol
6/70 35493-35498 IIb2 KCS 622-627 6 Some equipped with Locotrol, numbers out of sequence
3/71 35840-35847 IIc KCS 628-635 8 Some equipped with Locotrol
3/71 38363 IIc KCS 636 1
6/66-9/66 32088-32091 Ia2 L&N 1225–1228 4
4/69 34758-34762 IIb_ L&N 1229–1233 5
4/70 35948-35952 IIb2 L&N 1234–1238 5
8/70-9/70 36809-36818 IIb2 L&N 1239–1248 10
5/71 38203-38212 IIc L&N 1249–1258 10
1/68-2/68 33771-33784 IIb1 MP 720-733 14 No d/b
2/69 34504-34523 IIb_ MP 734-753 20 No d/b
1/70 35725-35740 IIb2 MP 754-769 16 No d/b
3/71-4/71 37543-37562 IIc MP 770-789 20 No d/b
3/67-4/67 32968-32987 Ib2 MP 700-719 20 No d/b
5/66-6/66 31899-31928 Ia2 NW 1580–1609 30 High short hood
5/71 35605-35619 IIc NW 1610–1624 15 High short hood
12/70-1/71 36896-36926 IIb2 PC 6240-6270 31
1/71-2/71 36997-37010 IIb2 PC 6271-6284 14 To Conrail same numbers; Various units wrecked and retired
2/66-3/66 31285-31349 Ia12,Ia2 PRR 6040-6104 65 To Penn Central same numbers.
4/69-5/69 34889-34898 IIb_ SOO 736-745 10 No d/b
3/70 36099-36102 IIb2 SOO 746-749 4 No d/b
5/71 37425-37431 IIc SOO 750-756 7 No d/b
4/71 37355-37370 IIc SOU 3170-3185 16 High short hood; To Norfolk Southern same numbers
12/71-1/72 7375-1 - 7375-15 III SOU 3186-3200 15 High short hood: To Norfolk Southern same numbers
1/66-5/66 31491-31569 Ia1,Ia2 SP 8400-8478 79 Numbers out of sequence
4/68-6/68 33671-33680 IIb_ SP 8479-8488 10
10/66-12/66 32400-32434 Ib1 UP 3048-3082 35
4/66 31414-31438 Ia2 UP 3000-3024 25
4/66 31575-31589 Ia2 UP 3025-3039 15
8/71-9/71 37639-37653 IIc UP 3083-3097 15
9/71-10/71 37904-37928 IIc UP 3098-3122 25
8/66 32134-32138 Ia2 WM 7470-7474 5
11/68 34104-34105 IIb_ WM 7495-7496 2
7/69 34967-34971 IIb_ WM 7445-7449 5

Built by GMD at London, Ontario

Built Serial Phase Railroad Road numbers Quantity Notes
10/71 A2561-A2563 AC 180-182 3
9/67 A2246-A2253 CN 5000-5007 8
10/67-12/68 A2260-A2327 CN 5008-5075 68 No d/b . 5062 destroyed in the 1986 Hinton train collision .
2/69-11/69 A2335-A2369 CN 5076-5110 35 No d/b . 5104 destroyed in the 1986 Hinton train collision .
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
11/71-12/71 A2588-A2602 CN 5226-5240 15 No d/b
7/66 A2133-A2164 Ia2 CP 5500-5531 32 Nose brakewheel
12/66 A2177-A2209 CP 5532-5564 33
7/68 A2328-A2333 QNSL 200-205 6
6/71 A2543-A2557 QNSL 206-220 15

Mexican SD40's Built by EMD at McCook, Illinois or GMD at London, Ontario

Built Serial Phase Railroad Road numbers Quantity Notes
4/67 32228-32231 RFFSA 3701-3704 4 Brazil, 5 ft 3 in (1,600 mm) Broad gauge
5/68 33385-33403 NdeM 8503-8521 19
3/68 33895-33897 NdeM 8500-8502 3
12/71 38893-38932 III NdeM 8536-8575 40
8/72 37894-37899 BOKE 101-106 6 Companie de Bauxite du Guinea
1/72 A2603-A2612 NdeM 8576-8585 10 Low-nose headlight, bell between number boards

Phases are as listed by Robert Sarberenyi. [citation needed]

Derivatives and Experimental

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GMD SD40 KCSM 3029 in Caltzonzin Station
GTW/CN #5945, a former GMD-built CN SD40, rebuilt to SD40-3 standards.
Last Mountain Railway SD40-3 at Aylesbury, Saskatchewan

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 5,000 gallon fuel tank.

Versions of the SD40 modified for the Australian loading gauge were sold to WAGR and Victorian Railways as their L and C classes respectively.

The SD40 was succeeded by an upgraded Dash 2 version called the SD40-2.

SD40 rebuilds

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After having been succeeded by the more modern SD40-2, a large number of SD40 have been upgraded with more modern equipment. The main difference between rebuilt SD40 and genuine SD40-2 is that the latter use a longer frame and has longer front and rear porches, while the rebuilt SD40 have a shorter frame.

A common product of rebuilding SD40s, and sometimes SD40-2s, is an SD40-3. The major addition denotes that the rebuilt unit or units as an SD40-3 is the addition of a micro-processor, and sometimes other modern components. The usual reasons for installing a micro-processor are improved traction control, and better fuel economy (via better injection control). Also, electronic control over braking systems (independent and automatic). This may include some SD39, SD45 and SD45-2 rebuilt to SD40-2 standards.

The SD40R is a rebuilt of all the Southern Pacific's SD40 between 1980 and 1981.[1]

30 SD40 units have been rebuilt as SD40M-2 by Morrison Knudsen for Southern Pacific, alongside 97 SD45s and 6 SDP45s.[2]

The SD40-2XR designates 15 SD40 and a SDP40 rebuilt to Dash-2 standards for Montana Rail Link.[3][better source needed][4]

The SD40E is an SD50 rebuilt by the Norfolk Southern Railway and derated to 3000 HP (equivalent to an SD40-2).

SD40-series production timeline

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EMD SD40XEMD SD40-2SEMD SD40-2WEMD SD40T-2EMD SDP40FEMD SD40-2EMD SD40AEMD SDP40

Preservation

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• Ex-Canadian National SD40 #5232 (built November 1971) has been purchased by The Vintage Locomotive Society on January 10, 2015, from Cando and the Central Manitoba Railway. It is being used for revenue service by Prairie Rail Solutions, a wholly owned subsidiary of the Society. The unit has been repainted completely black, with Prairie Rail Solutions lettering and logos. It is VLSX 5232.

• Canadian Pacific SD40 #5500 is preserved at the Revelstoke Railway Museum in Revelstoke, BC. It was CP's first SD40, built in 1966 at GMD's London plant and was retired in 2001. The unit was donated to the museum in 2007. Plans are being made to restore the locomotive to its original look as it was when ordered, including a repaint into its original grey/tuscan red paint scheme, known as the Canadian Pacific "Script".

Chesapeake and Ohio #7534 has been donated by CSX Transportation to the C&O Historical Society in Clifton Forge, Virginia. This engine is well known in the railroad enthusiast community as it ran on CSX right up to the late-2000s still wearing some of it original C&O paint and lettering, and was the very last SD40 on CSX's roster. The engine was meant to be used on the Buckingham Branch Railroad, which also operates out of Clifton Forge, however the unit spends quite a bit of time at the Historical Society's museum.

Illinois Central SD40-2R #6071, the first SD40 built, is preserved at the Monticello Railway Museum in Monticello, Illinois. It was originally EMD demonstrator #434. It was sold to the Gulf Mobile & Ohio and it became GM&O #950. The GM&O was later merged into the Illinois Central Railroad and became Illinois Central Gulf #6071, then later rebuilt into an SD40-2R for the IC. It was donated March 11, 2009. The engine is fully functional, however it needs new traction motors if it were to operate again.

Louisville and Nashville #1230 is owned by the Tennessee Valley Railroad Museum but will be put to work on the museum's for-profit subsidiary, the Tyner Terminal Railroad, switching the Volkswagen plant. It will eventually be restored to one of its earlier L&N liveries.[5]

• Ex-Santa Fe #5007 (built 1966 as ATSF 1707) is preserved at the Western America Railroad Museum in Barstow, California. It's currently numbered GN 6307, after being donated to the museum by BNSF.[6]

Santa Fe #5008 (built 1966 as ATSF 1708) is preserved at the Walt Disney Hometown Museum in Marceline, Missouri.

In mid December, 2014, it was revealed that Norfolk Southern had set aside two SD40 units, that were retired in 2007, for preservation:

Union Pacific #7362 (built 1966 as SP #8475) is used on North Platte Community College's South Campus as a training locomotive.[8]

• Western Maryland #7471 is owned by a private individual and currently leased to the Steam Railroading Institute in Owosso, Michigan.

See also

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References

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  1. ^ Richard.A.Percy. "Southern Pacific SD40R Info Page". espee.railfan.net. Retrieved 2017-08-14.
  2. ^ Richard.A.Percy. "Southern Pacific SD40M-2 Info Page". espee.railfan.net. Retrieved 2017-08-14.
  3. ^ "Athearn RTR MRL SD40-2XR". Trainorders.com Discussion. Retrieved 2017-08-14.
  4. ^ "Montana Rail Link". www.thedieselshop.us. Retrieved 2017-08-14.
  5. ^ Franz, Justin (2024-06-20). "L&N SD40 Returns to Tennessee". Railfan & Railroad Magazine. Retrieved 2024-07-14.
  6. ^ Sloan, Steve (2021-04-14), GN 6307 at Barstow, retrieved 2024-03-09
  7. ^ "Norfolk Southern donates Southern SD40 to TVRM". Trains Magazine. 2016-05-19. Retrieved 2016-05-19.
  8. ^ "North Platte Community College". www.rrpicturearchives.net. Retrieved 2024-03-09.