EMD SD40

Last updated
EMD SD40
SP 7342 in Oakland, CA in December 1980 (31185863985).jpg
Southern Pacific 7342, an SD40R, in 1980
Type and origin
Power type Diesel-electric
Builder GM Electro-Motive Division (EMD)
General Motors Diesel (GMD)
ModelSD40
Build dateJanuary 1966 – August 1972
Total produced1,268
Specifications
Configuration:
​
 •  AAR C-C
Gauge 4 ft 8+1⁄2 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+1⁄2 inches (20.053 m) on some units starting early 1968.
Width10 ft 0 in (3.05 m)
Height15 ft 5+1⁄4 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 mover EMD 16-645E3
Engine type V16 diesel
Aspiration turbocharged
Alternator main : AR-10
auxiliary : D14
Generator (?)
Traction motors D-77
Cylinders 16
Loco brake Independent air\
optional: dynamic brakes
Train brakes Air, schedule 26-L
Performance figures
Maximum speed83 mph (134 km/h)
Power output3,000  hp (2,240 kW)
Career
Locale North 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.

Contents

Design

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

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.

BuiltSerialPhaseRailroadRoad numbersQuantityNotes
6/6631766Ia2 ASAB 5061No d/b
3/66-5/6632036-32055 ATSF 1700–1719201708/5008 preserved
10/71-11/715801-1 - 5801-25IIc BN 6300-632425
5/6733161-33173Ic B&O 7482-749413Drop grabs on nose, 7482–7490 to CNJ
4/6934775-34778IIb_ B&O 7497-75004
8/66-9/6632092-32100Ia2 CGW 401-4099
1/66-2/6631263-31282Ia1 CNW 867-88620No d/b, 867 first SD40 built
4/6631760-31765Ia2 CNW 887-8926No d/b
9/6632314Ia2 CNW 8931No d/b
2/6732686-32688Ib2 CNW 894-8963No d/b
7/66-8/6631929-31948Ia2 C&O 7450-746920
5/6733154-33160Ic C&O 7475-74817Drop grabs on nose
4/6934779-34784IIb_ C&O 7501-75066
6/7036696-36705IIb2 C&O 7507-751610
7/7036746-36755IIb2 C&O 7517-752610
3/7137204-37213IIc C&O 7527-753610
10/6733516-33519IIa2 C&S 875-8784To Burlington Northern Same numbers.
4/6833918-33926IIb1 C&S 879-8879To Burlington Northern Same numbers. 879 to BNSF.
9/6632141-32148Ia2 CRR 3000-30078
9/6834177IIb_ CRR 30081
9/6834742-34747IIb_ CRR 3009-30146
6/7137417-37422IIc CRR 3015-30206
6/7137538-37541IIc CRR 3021-30244
4/7036124-36129IIb2 DE 001-0066Numbers out of sequence
7/725817-1 - 5817-2III DE 013-0142
7/725818-1 - 5818-3III DE 015-0173
6/6631799Ia2 GM 101No d/b
2/6631007-31018Ia1 GM&O 901-91212
9/6632161-32169Ia2 GM&O 913-9219
8/6935184-35195IIb_ GTW 5900-591112No d/b
1/7035831-35839IIb2 GTW 5912-59209
9/7036887-36895IIb2 GTW 5921-59299No d/b
12/6733244-33249IIa2 IC 6000-60056No d/b
8/6934939-34951IIb_ IC 6006-601813SD40A: 70 ft 8 in (21.54 m) frame,
5,000-US-gallon (19,000 L; 4,200 imp gal) fuel tank
1/7035685-35689IIb2 IC 6019-60235SD40A: 70 ft 8 in (21.54 m) frame,
5,000-US-gallon (19,000 L; 4,200 imp gal) fuel tank
10/66-11/6632101-32114Ib1 KCS 600-61314Some equipped with Locotrol
8/6833958-33965IIb_ KCS 614-6218Some equipped with Locotrol
6/7035493-35498IIb2 KCS 622-6276Some equipped with Locotrol, numbers out of sequence
3/7135840-35847IIc KCS 628-6358Some equipped with Locotrol
3/7138363IIc KCS 6361
6/66-9/6632088-32091Ia2 L&N 1225–12284
4/6934758-34762IIb_ L&N 1229–12335
4/7035948-35952IIb2 L&N 1234–12385
8/70-9/7036809-36818IIb2 L&N 1239–124810
5/7138203-38212IIc L&N 1249–125810
1/68-2/6833771-33784IIb1 MP 720-73314No d/b
2/6934504-34523IIb_ MP 734-75320No d/b
1/7035725-35740IIb2 MP 754-76916No d/b
3/71-4/7137543-37562IIc MP 770-78920No d/b
3/67-4/6732968-32987Ib2 MP 700-71920No d/b
5/66-6/6631899-31928Ia2 NW 1580–160930High short hood
5/7135605-35619IIc NW 1610–162415High short hood
12/70-1/7136896-36926IIb2 PC 6240-627031
1/71-2/7136997-37010IIb2 PC 6271-628414To Conrail same numbers; Various units wrecked and retired
2/66-3/6631285-31349Ia12,Ia2 PRR 6040-610465To Penn Central same numbers.
4/69-5/6934889-34898IIb_ SOO 736-74510No d/b
3/7036099-36102IIb2 SOO 746-7494No d/b
5/7137425-37431IIc SOO 750-7567No d/b
4/7137355-37370IIc SOU 3170-318516High short hood; To Norfolk Southern same numbers
12/71-1/727375-1 - 7375-15III SOU 3186-320015High short hood: To Norfolk Southern same numbers
1/66-5/6631491-31569Ia1,Ia2 SP 8400-847879Numbers out of sequence
4/68-6/6833671-33680IIb_ SP 8479-848810
10/66-12/6632400-32434Ib1 UP 3048-308235
4/6631414-31438Ia2 UP 3000-302425
4/6631575-31589Ia2 UP 3025-303915
8/71-9/7137639-37653IIc UP 3083-309715
9/71-10/7137904-37928IIc UP 3098-312225
8/6632134-32138Ia2 WM 7470-74745
11/6834104-34105IIb_ WM 7495-74962
7/6934967-34971IIb_ WM 7445-74495

Built by GMD at London, Ontario

BuiltSerialPhaseRailroadRoad numbersQuantityNotes
10/71A2561-A2563 AC 180-1823
9/67A2246-A2253 CN 5000-50078
10/67-12/68A2260-A2327 CN 5008-507568No d/b . 5062 destroyed in the 1986 Hinton train collision .
2/69-11/69A2335-A2369 CN 5076-511035No d/b . 5104 destroyed in the 1986 Hinton train collision .
11/69-12/69A2370-A2391 CN 5111-513222
12/69-4/71A2392-A2434 CN 5133-517543No d/b
4/71-11/71A2493-A2542 CN 5176-522550No d/b
11/71-12/71A2588-A2602 CN 5226-524015No d/b
7/66A2133-A2164Ia2 CP 5500-553132Nose brakewheel
12/66A2177-A2209 CP 5532-556433
7/68A2328-A2333 QNSL 200-2056
6/71A2543-A2557 QNSL 206-22015

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

BuiltSerialPhaseRailroadRoad numbersQuantityNotes
4/6732228-32231 RFFSA 3701-37044Brazil, 5 ft 3 in (1,600 mm) Broad gauge
5/6833385-33403 NdeM 8503-852119
3/6833895-33897 NdeM 8500-85023
12/7138893-38932III NdeM 8536-857540
8/7237894-37899BOKE101-1066 Companie de Bauxite du Guinea
1/72A2603-A2612 NdeM 8576-858510Low-nose headlight, bell between number boards

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

Derivatives and Experimental

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

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

EMD SD40XEMD SD40-2SEMD SD40-2WEMD SD40T-2EMD SDP40FEMD SD40-2EMD SD40AEMD SDP40EMD SD40

Preservation

• 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.

• 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. [5]

• 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. [7]

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

See also

Related Research Articles

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<span class="mw-page-title-main">EMD SD70 series</span> Locomotive class

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<span class="mw-page-title-main">EMD SDP45</span> North American diesel locomotive class

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<span class="mw-page-title-main">EMD Dash 2</span> Series of EMD diesel locomotives built from 1972

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<span class="mw-page-title-main">Monticello Railway Museum</span>

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References

  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. ↑ Sloan, Steve (2021-04-14), GN 6307 at Barstow , retrieved 2024-03-09
  6. ↑ "Norfolk Southern donates Southern SD40 to TVRM" . Trains Magazine . 2016-05-19. Retrieved 2016-05-19.
  7. ↑ "North Platte Community College". www.rrpicturearchives.net. Retrieved 2024-03-09.
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